{"id":1130,"date":"2025-04-01T17:12:14","date_gmt":"2025-04-01T17:12:14","guid":{"rendered":"https:\/\/certpanelresources.flywheelsites.com\/?page_id=1130"},"modified":"2025-05-27T17:36:15","modified_gmt":"2025-05-27T17:36:15","slug":"ssl-tls-vulnerabilities","status":"publish","type":"page","link":"https:\/\/certpanel.com\/resources\/ssl-tls-vulnerabilities\/","title":{"rendered":"SSL\/TLS Vulnerabilities"},"content":{"rendered":"<div class=\"width-fixer\">\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading alignfull\">The ultimate resource for preventing SSL\/TLS based attacks.<\/h2>\n\n\n\n<p style=\"margin-right:0;margin-bottom:var(--wp--preset--spacing--30);margin-left:0\">Welcome to our SSL\/TLS Vulnerabilities resource hub! Learn about the six different types of SSL\/TLS vulnerabilities and the ideal configurations to patch known issues. Browse our expert guides to get an in-depth description of some of the more common SSL vulnerabilities and what needs to be done to fix them. We&#8217;ve even put together a historical timeline of vulnerability breaches as well as some stats on the current state of things currently. <\/p>\n\n\n\n<p>If it&#8217;s your first time here, don&#8217;t forget to download your copy of our SSL\/TLS Best Practices Checklist below:<\/p>\n\n\n\n\n\n\n\n<div class=\"wp-block-columns content-btn-boxes has-custom-lightgray-background-color has-background is-layout-flex wp-container-core-columns-is-layout-6dbbbada wp-block-columns-is-layout-flex\" style=\"padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n<div class=\"wp-block-column has-base-background-color has-background is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n<h3 class=\"wp-block-heading has-text-align-center\">Download SSL\/TLS Best Practices Checklist<\/h3>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-a89b3969 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"\/resources\/wp-content\/uploads\/2025\/04\/SSL-TLS-Checklist-Formatted-1.pdf\">Download as PDF<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"\/resources\/wp-content\/uploads\/2025\/04\/SSL-TLS-Best-Practices-Checklist.xlsx\">Download as XLS<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column has-base-background-color has-background is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n<h3 class=\"wp-block-heading has-text-align-center\">Expert Guides<\/h3>\n\n\n\n<p class=\"has-text-align-center\">Read deep-dives on Specific SSL\/TLS Vulnerabilities and their solutions<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-098cc607 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"#ssltls-vulnerability-mitigation-expert-guides\">Jump to Guides<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column has-base-background-color has-background is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n<h3 class=\"wp-block-heading has-text-align-center\">SSL\/TLS Vulnerabilities Statistics<\/h3>\n\n\n\n<p class=\"has-text-align-center\">How vulnerable is the internet to SSL\/TLS attacks?<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-098cc607 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"#ssltls-vulnerability-statistics\">See our data<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n<div class=\"wp-block-table-of-contents-block-table-of-contents-block\"><div class=\"eb-parent-wrapper eb-parent-eb-toc-vod1y \"><div class=\"eb-toc-container eb-toc-vod1y  eb-toc-is-not-sticky eb-toc-not-collapsible eb-toc-initially-not-collapsed eb-toc-scrollToTop style-1 list-style-none\" data-scroll-top=\"false\" data-scroll-top-icon=\"fas fa-angle-up\" data-collapsible=\"false\" data-sticky-hide-mobile=\"false\" data-sticky=\"false\" data-scroll-target=\"scroll_to_toc\" data-copy-link=\"false\" data-editor-type=\"\" data-hide-desktop=\"false\" data-hide-tab=\"false\" data-hide-mobile=\"false\" data-itemCollapsed=\"false\"><div class=\"eb-toc-header\"><div class=\"eb-toc-title\">Table of Contents<\/div><\/div><div class=\"eb-toc-wrapper \" data-headers=\"[{&quot;level&quot;:2,&quot;content&quot;:&quot;The ultimate resource for preventing SSL\\\/TLS based attacks.&quot;,&quot;text&quot;:&quot;The ultimate resource for preventing SSL\\\/TLS based attacks.&quot;,&quot;link&quot;:&quot;the-ultimate-resource-for-preventing-ssltls-based-attacks&quot;},{&quot;level&quot;:3,&quot;content&quot;:&quot;Download SSL\\\/TLS Best Practices Checklist&quot;,&quot;text&quot;:&quot;Download SSL\\\/TLS Best Practices Checklist&quot;,&quot;link&quot;:&quot;download-ssltls-best-practices-checklist&quot;},{&quot;level&quot;:3,&quot;content&quot;:&quot;Expert Guides&quot;,&quot;text&quot;:&quot;Expert Guides&quot;,&quot;link&quot;:&quot;expert-guides&quot;},{&quot;level&quot;:3,&quot;content&quot;:&quot;SSL\\\/TLS Vulnerabilities Statistics&quot;,&quot;text&quot;:&quot;SSL\\\/TLS Vulnerabilities Statistics&quot;,&quot;link&quot;:&quot;ssltls-vulnerabilities-statistics&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;6 SSL\\\/TLS Vulnerability Types and How to Mitigate Them&quot;,&quot;text&quot;:&quot;6 SSL\\\/TLS Vulnerability Types and How to Mitigate Them&quot;,&quot;link&quot;:&quot;6-ssltls-vulnerability-types-and-how-to-mitigate-them&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;Timeline of SSL\\\/TLS Vulnerability Breaches&quot;,&quot;text&quot;:&quot;Timeline of SSL\\\/TLS Vulnerability Breaches&quot;,&quot;link&quot;:&quot;timeline-of-ssltls-vulnerability-breaches&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;SSL\\\/TLS Vulnerability Mitigation Expert Guides&quot;,&quot;text&quot;:&quot;SSL\\\/TLS Vulnerability Mitigation Expert Guides&quot;,&quot;link&quot;:&quot;ssltls-vulnerability-mitigation-expert-guides&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;SSL\\\/TLS Vulnerability Statistics&quot;,&quot;text&quot;:&quot;SSL\\\/TLS Vulnerability Statistics&quot;,&quot;link&quot;:&quot;ssltls-vulnerability-statistics&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;SSL\\\/TLS Risks &amp; Vulnerabilities Course&quot;,&quot;text&quot;:&quot;SSL\\\/TLS Risks &amp; Vulnerabilities Course&quot;,&quot;link&quot;:&quot;ssltls-risks-vulnerabilities-course&quot;},{&quot;level&quot;:3,&quot;content&quot;:&quot;Video Contents:&quot;,&quot;text&quot;:&quot;Video Contents:&quot;,&quot;link&quot;:&quot;video-contents&quot;}]\" data-visible=\"[true,true,true,true,true,true]\" data-delete-headers=\"[{&quot;label&quot;:&quot;The ultimate resource for preventing SSL\\\/TLS based attacks.&quot;,&quot;value&quot;:&quot;the-ultimate-resource-for-preventing-ssltls-based-attacks&quot;,&quot;isDelete&quot;:true},{&quot;label&quot;:&quot;Download SSL\\\/TLS Best Practices Checklist&quot;,&quot;value&quot;:&quot;download-ssltls-best-practices-checklist&quot;,&quot;isDelete&quot;:true},{&quot;label&quot;:&quot;Expert Guides&quot;,&quot;value&quot;:&quot;expert-guides&quot;,&quot;isDelete&quot;:true},{&quot;label&quot;:&quot;SSL\\\/TLS Vulnerabilities Statistics&quot;,&quot;value&quot;:&quot;ssltls-vulnerabilities-statistics&quot;,&quot;isDelete&quot;:true},{&quot;label&quot;:&quot;6 SSL\\\/TLS Vulnerability Types and How to Mitigate Them&quot;,&quot;value&quot;:&quot;6-ssltls-vulnerability-types-and-how-to-mitigate-them&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;Timeline of SSL\\\/TLS Vulnerability Breaches&quot;,&quot;value&quot;:&quot;timeline-of-ssltls-vulnerability-breaches&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;SSL\\\/TLS Vulnerability Mitigation Expert Guides&quot;,&quot;value&quot;:&quot;ssltls-vulnerability-mitigation-expert-guides&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;SSL\\\/TLS Vulnerability Statistics&quot;,&quot;value&quot;:&quot;ssltls-vulnerability-statistics&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;SSL\\\/TLS Risks &amp; Vulnerabilities Course&quot;,&quot;value&quot;:&quot;ssltls-risks-vulnerabilities-course&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;Video Contents:&quot;,&quot;value&quot;:&quot;video-contents&quot;,&quot;isDelete&quot;:true}]\" data-smooth=\"true\" data-top-offset=\"\"><div class=\"eb-toc__list-wrap\"><ul class='eb-toc__list'><li><a href=\"#6-ssltls-vulnerability-types-and-how-to-mitigate-them\">6 SSL\/TLS Vulnerability Types and How to Mitigate Them<\/a><li><a href=\"#timeline-of-ssltls-vulnerability-breaches\">Timeline of SSL\/TLS Vulnerability Breaches<\/a><li><a href=\"#ssltls-vulnerability-mitigation-expert-guides\">SSL\/TLS Vulnerability Mitigation Expert Guides<\/a><li><a href=\"#ssltls-vulnerability-statistics\">SSL\/TLS Vulnerability Statistics<\/a><li><a href=\"#ssltls-risks-vulnerabilities-course\">SSL\/TLS Risks &amp; Vulnerabilities Course<\/a><\/ul><\/div><\/div><\/div><\/div><\/div>\n<div class=\"custom-open-close\">\n\n<h2 class=\"wp-block-heading alignfull\">6 SSL\/TLS Vulnerability Types and How to Mitigate Them<\/h2>\n\n\n\n<p class=\"has-text-align-left has-accent-1-color has-text-color has-link-color custom-p wp-elements-615d5a355140399efd32293d1550dbaa\">Click on the arrows below to expand each category for specific examples and their patches.<\/p>\n\n\n\n\n\n\n\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<details class=\"wp-block-details\" name=\"first\"><summary><span class=\"custom-titler is-layout-flow wp-container-core-details-is-layout-f5bb311e wp-block-details-is-layout-flow\"><strong>Protocol Vulnerabilities<\/strong><\/span> &#8211; These are weaknesses in the design of SSL\/TLS protocols themselves \u2014 especially older versions.<\/summary>\n\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Vulnerability<\/strong><\/td><td><strong>Description<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>SSL 2.0 \/ SSL 3.0<\/strong><\/td><td>Obsolete and insecure; vulnerable to attacks like <strong>POODLE<\/strong>.<\/td><\/tr><tr><td><strong>TLS 1.0 \/ 1.1<\/strong><\/td><td>Deprecated due to weak ciphers, lack of forward secrecy.<\/td><\/tr><tr><td><strong>BEAST<\/strong> (TLS 1.0)<\/td><td>Exploits weaknesses in block cipher mode (CBC).<\/td><\/tr><tr><td><strong>CRIME \/ BREACH<\/strong><\/td><td>Exploits compression features in SSL\/TLS or HTTP.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p style=\"margin-top:var(--wp--preset--spacing--40);margin-bottom:var(--wp--preset--spacing--40)\">\ud83d\udee0\ufe0f <strong>Mitigation<\/strong>: Disable all versions before TLS 1.2. Use TLS 1.3 if possible.<\/p>\n\n\n\n\n<\/details>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<details class=\"wp-block-details\" name=\"first\"><summary><span class=\"custom-titler is-layout-flow wp-container-core-details-is-layout-f5bb311e wp-block-details-is-layout-flow\"><strong style=\"font-weight: bold;\">Cipher Suite<\/strong><strong> <\/strong><strong>Vulnerabilities<\/strong><\/span> &#8211; Some cipher algorithms are weak or misconfigured, making them easier to break.<\/summary>\n\n\n\n\n<figure class=\"wp-block-table is-style-stripes\" style=\"margin-right:0;margin-left:0\"><table><tbody><tr><td><strong>Vulnerable Cipher Type<\/strong><\/td><td><strong>Status<\/strong><\/td><\/tr><tr><td>NULL \/ ANON<\/td><td>Insecure<\/td><\/tr><tr><td>EXPORT<\/td><td>Insecure<\/td><\/tr><tr><td>SSLv2\/SSLv3<\/td><td>Obsolete<\/td><\/tr><tr><td>RC4<\/td><td>Deprecated<\/td><\/tr><tr><td>DES \/ 3DES<\/td><td>Deprecated<\/td><\/tr><tr><td>RSA key exchange<\/td><td>No forward secrecy<\/td><\/tr><tr><td>CBC mode (pre-TLS 1.2)<\/td><td>Vulnerable<\/td><\/tr><tr><td>MD5 hashing<\/td><td>Broken<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p style=\"margin-top:var(--wp--preset--spacing--40);margin-bottom:var(--wp--preset--spacing--40)\">\ud83d\udee0\ufe0f <strong>Mitigation<\/strong>: <strong>TLS 1.3 Cipher Suites<\/strong> are dramatically simplified and more secure by design. Use:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>TLS_CHACHA20_POLY1305_SHA256 (especially good for mobile)<\/li>\n\n\n\n<li>TLS_AES_128_GCM_SHA256<\/li>\n\n\n\n<li>TLS_AES_256_GCM_SHA384<\/li>\n<\/ul>\n\n\n\n<p><strong>For specific examples of vulnerable cipher suites, click to expand each list:<\/strong><\/p>\n\n\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\" style=\"padding-right:var(--wp--preset--spacing--40);padding-left:var(--wp--preset--spacing--40)\">\n<details class=\"wp-block-details is-layout-flow wp-container-core-details-is-layout-f5bb311e wp-block-details-is-layout-flow\"><summary><strong>Anonymous Cipher Suites<\/strong> &#8211; These cipher suites lack authentication, allowing attackers to impersonate servers, making them highly vulnerable to man-in-the-middle (MITM) attacks.\u200b<\/summary>\n<ul class=\"wp-block-list\">\n<li>TLS_DH_Anon_WITH_3DES_EDE_CBC_SHA<\/li>\n\n\n\n<li>TLS_DH_Anon_WITH_AES_128_CBC_SHA<\/li>\n\n\n\n<li>TLS_DH_Anon_WITH_AES_256_CBC_SHA<\/li>\n\n\n\n<li>TLS_ECDH_Anon_WITH_AES_128_CBC_SHA<\/li>\n\n\n\n<li>TLS_ECDH_Anon_WITH_AES_256_CBC_SHA<\/li>\n\n\n\n<li>TLS_ECDH_Anon_WITH_3DES_EDE_CBC_SHA<\/li>\n\n\n\n<li>TLS_ECDH_Anon_WITH_RC4_128_SHA<\/li>\n\n\n\n<li>TLS_ECDH_Anon_WITH_NULL_SHA<\/li>\n\n\n\n<li>TLS_DH_Anon_WITH_CAMELLIA_128_CBC_SHA<\/li>\n\n\n\n<li>TLS_DH_Anon_WITH_CAMELLIA_256_CBC_SHA<\/li>\n\n\n\n<li>TLS_DH_Anon_WITH_SEED_CBC_SHA<\/li>\n\n\n\n<li>TLS_DH_Anon_WITH_ARIA_128_CBC_SHA<\/li>\n\n\n\n<li>TLS_DH_Anon_WITH_ARIA_256_CBC_SHA\u200b<\/li>\n<\/ul>\n\n\n\n<p>These suites are considered insecure and should be disabled in modern environments. \u200b<\/p>\n\n\n\n\n<\/details>\n\n\n\n\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"font-style:normal;font-weight:400\"><summary><strong><strong>Null Cipher Suites<\/strong><\/strong> &#8211; These cipher suites do not provide encryption, rendering the communication vulnerable to eavesdropping.\u200b<\/summary>\n<ul class=\"wp-block-list\">\n<li>TLS_NULL_WITH_NULL_NULL<\/li>\n\n\n\n<li>TLS_RSA_WITH_NULL_MD5<\/li>\n\n\n\n<li>TLS_RSA_WITH_NULL_SHA<\/li>\n\n\n\n<li>TLS_RSA_WITH_NULL_SHA256<\/li>\n\n\n\n<li>TLS_DHE_RSA_WITH_NULL_SHA<\/li>\n\n\n\n<li>TLS_DHE_RSA_WITH_NULL_SHA256<\/li>\n\n\n\n<li>TLS_DHE_RSA_WITH_NULL_MD5<\/li>\n\n\n\n<li>TLS_DHE_DSS_WITH_NULL_SHA<\/li>\n\n\n\n<li>TLS_DHE_DSS_WITH_NULL_SHA256<\/li>\n\n\n\n<li>TLS_DHE_DSS_WITH_NULL_MD5<\/li>\n\n\n\n<li>TLS_DH_RSA_WITH_NULL_SHA<\/li>\n\n\n\n<li>TLS_DH_RSA_WITH_NULL_SHA256<\/li>\n\n\n\n<li>TLS_DH_RSA_WITH_NULL_MD5<\/li>\n\n\n\n<li>TLS_DH_DSS_WITH_NULL_SHA<\/li>\n\n\n\n<li>TLS_DH_DSS_WITH_NULL_SHA256<\/li>\n\n\n\n<li>TLS_DH_DSS_WITH_NULL_MD5<\/li>\n\n\n\n<li>TLS_ECDHE_RSA_WITH_NULL_SHA<\/li>\n\n\n\n<li>TLS_ECDHE_RSA_WITH_NULL_SHA256<\/li>\n\n\n\n<li>TLS_ECDHE_RSA_WITH_NULL_SHA384<\/li>\n\n\n\n<li>TLS_ECDHE_RSA_WITH_NULL_MD5<\/li>\n\n\n\n<li>TLS_ECDHE_ECDSA_WITH_NULL_SHA<\/li>\n\n\n\n<li>TLS_ECDHE_ECDSA_WITH_NULL_SHA256<\/li>\n\n\n\n<li>TLS_ECDHE_ECDSA_WITH_NULL_SHA384<\/li>\n\n\n\n<li>TLS_ECDHE_ECDSA_WITH_NULL_MD5<\/li>\n\n\n\n<li>TLS_ECDH_RSA_WITH_NULL_SHA<\/li>\n\n\n\n<li>TLS_ECDH_RSA_WITH_NULL_SHA256<\/li>\n\n\n\n<li>TLS_ECDH_RSA_WITH_NULL_SHA384<\/li>\n\n\n\n<li>TLS_ECDH_RSA_WITH_NULL_MD5<\/li>\n\n\n\n<li>TLS_ECDH_ECDSA_WITH_NULL_SHA<\/li>\n\n\n\n<li>TLS_ECDH_ECDSA_WITH_NULL_SHA256<\/li>\n\n\n\n<li>TLS_ECDH_ECDSA_WITH_NULL_SHA384<\/li>\n\n\n\n<li>TLS_ECDH_ECDSA_WITH_NULL_MD5<\/li>\n\n\n\n<li>TLS_RSA_WITH_NULL_SHA<\/li>\n\n\n\n<li>TLS_RSA_WITH_NULL_SHA256<\/li>\n\n\n\n<li>TLS_RSA_WITH_NULL_SHA384<\/li>\n\n\n\n<li>TLS_RSA_WITH_NULL_MD5<\/li>\n\n\n\n<li>TLS_RSA_WITH_NULL_SHA1<\/li>\n\n\n\n<li>TLS_RSA_WITH_NULL_SHA224<\/li>\n\n\n\n<li>TLS_RSA_WITH_NULL_SHA256<\/li>\n\n\n\n<li>TLS_RSA_WITH_NULL_SHA384<\/li>\n\n\n\n<li>TLS_RSA_WITH_NULL_SHA512\u200b<\/li>\n\n\n\n<li>These cipher suites should be avoided as they do not provide any encryption.<\/li>\n<\/ul>\n<\/details>\n\n\n\n\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"font-style:normal;font-weight:400\"><summary><strong><strong><strong>Export-Grade Cipher Suites<\/strong><\/strong><\/strong> &#8211; These cipher suites were designed to comply with outdated U.S. export regulations limiting key strength to 40 or 56 bits. They are now considered insecure and should be disabled.\u200b<\/summary>\n<ul class=\"wp-block-list\">\n<li>TLS_RSA_EXPORT_WITH_RC4_40_MD5<\/li>\n\n\n\n<li>TLS_RSA_EXPORT_WITH_RC4_40_SHA<\/li>\n\n\n\n<li>TLS_RSA_EXPORT_WITH_DES40_CBC_SHA<\/li>\n\n\n\n<li>TLS_RSA_EXPORT_WITH_RC2_40_MD5<\/li>\n\n\n\n<li>TLS_RSA_EXPORT_WITH_RC2_40_SHA<\/li>\n\n\n\n<li>TLS_RSA_EXPORT_WITH_RC4_56_MD5<\/li>\n\n\n\n<li>TLS_RSA_EXPORT_WITH_RC4_56_SHA<\/li>\n\n\n\n<li>TLS_RSA_EXPORT_WITH_RC2_56_MD5<\/li>\n\n\n\n<li>TLS_RSA_EXPORT_WITH_RC2_56_SHA\u200b<\/li>\n<\/ul>\n<\/details>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"font-style:normal;font-weight:400\"><summary><strong><strong><strong><strong>RC4-Based Cipher Suites<\/strong><\/strong><\/strong><\/strong> &#8211; RC4 has severe biases that allow plaintext recovery in some scenarios. RFC 7465 prohibits RC4 in TLS. All major browsers and OSes have dropped support.<\/summary>\n<p><strong>Examples:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>TLS_RSA_WITH_RC4_128_MD5<\/li>\n\n\n\n<li>TLS_RSA_WITH_RC4_128_SHA<\/li>\n\n\n\n<li>TLS_ECDHE_RSA_WITH_RC4_128_SHA<\/li>\n\n\n\n<li>TLS_ECDHE_ECDSA_WITH_RC4_128_SHA<\/li>\n<\/ul>\n<\/details>\n\n\n\n\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"font-style:normal;font-weight:400\"><summary><strong><strong><strong><strong><strong>Block Ciphers with Small Block Sizes (3DES \/ DES)<\/strong><\/strong><\/strong><\/strong><\/strong> &#8211; 3DES uses a 64-bit block size which makes it vulnerable to <strong>Sweet32<\/strong> birthday attacks. <strong>Single DES<\/strong> (like TLS_RSA_WITH_DES_CBC_SHA) is <em>completely broken<\/em> and should be avoided under all circumstances.<\/summary>\n<p><strong>Examples:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>TLS_RSA_WITH_3DES_EDE_CBC_SHA<\/li>\n\n\n\n<li>TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA<\/li>\n\n\n\n<li>TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA<\/li>\n<\/ul>\n<\/details>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"font-style:normal;font-weight:400\"><summary><strong>Static Key Exchanges (No Forward Secrecy)<\/strong> &#8211; If the private key is compromised, <strong>past communications<\/strong> can be decrypted. Use <strong>Ephemeral DH\/ECDH<\/strong> (e.g., ECDHE) suites for <strong>Forward Secrecy<\/strong>.<\/summary>\n<p><strong>Examples (non-Ephemeral RSA\/DH):<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>TLS_RSA_WITH_AES_128_CBC_SHA<\/li>\n\n\n\n<li>TLS_RSA_WITH_AES_256_CBC_SHA<\/li>\n\n\n\n<li>TLS_RSA_WITH_AES_128_GCM_SHA256<\/li>\n<\/ul>\n<\/details>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"font-style:normal;font-weight:400\"><summary><strong><strong>CBC Mode Ciphers in TLS &lt; 1.2<\/strong><\/strong> &#8211; Susceptible to <strong>BEAST<\/strong>, <strong>Lucky13<\/strong>, and <strong>padding oracle<\/strong> attacks. CBC is more secure in <strong>TLS 1.2+<\/strong>, but <strong>TLS 1.3<\/strong> removed CBC mode entirely.<\/summary>\n<p><strong>Examples:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>TLS_RSA_WITH_AES_128_CBC_SHA<\/li>\n\n\n\n<li>TLS_DHE_RSA_WITH_AES_256_CBC_SHA<\/li>\n\n\n\n<li>TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA<\/li>\n<\/ul>\n<\/details>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"font-style:normal;font-weight:400\"><summary><strong>MD5-Based Cipher Suites<\/strong> &#8211; MD5 is broken \u2014 it is vulnerable to collision attacks.<\/summary>\n<p><strong>Examples:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>TLS_RSA_WITH_AES_128_CBC_MD5<\/li>\n\n\n\n<li>TLS_RSA_WITH_RC4_128_MD5<\/li>\n\n\n\n<li>TLS_RSA_WITH_NULL_MD5<\/li>\n<\/ul>\n<\/details>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"font-style:normal;font-weight:400\"><summary><strong><strong>Cipher Suites Deprecated in TLS 1.3<\/strong><\/strong> &#8211; TLS 1.3 <strong>removed many older cipher suite types<\/strong>, including:<\/summary>\n<p><strong>Examples:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>All <strong>CBC<\/strong> mode suites<\/li>\n\n\n\n<li>All <strong>RSA key exchange<\/strong> suites<\/li>\n\n\n\n<li>All <strong>non-AEAD<\/strong> suites (e.g., SHA-only or HMAC-based)<\/li>\n\n\n\n<li>All <strong>RC4, 3DES, DES, MD5<\/strong>, and <strong>NULL\/EXPORT\/ANON<\/strong> cipher suites<\/li>\n<\/ul>\n<\/details>\n<\/div>\n<\/details>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<details class=\"wp-block-details\" name=\"first\"><summary><span class=\"custom-titler is-layout-flow wp-container-core-details-is-layout-f5bb311e wp-block-details-is-layout-flow\"><strong><strong>Certificate-Related <strong>Vulnerabilities<\/strong> <\/strong><\/strong><\/span>&#8211; Problems with certificates can break the entire trust model of TLS.<\/summary>\n\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Issue<\/strong><\/td><td><strong>Description<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>Expired Certificates<\/strong><\/td><td>Makes the connection insecure or unusable.<\/td><\/tr><tr><td><strong>Self-Signed Certs<\/strong><\/td><td>Not trusted by browsers or users.<\/td><\/tr><tr><td><strong>Mismatched Hostnames<\/strong><\/td><td>Cert doesn\u2019t match domain name = browser warning.<\/td><\/tr><tr><td><strong>Improper Validation<\/strong><\/td><td>Missing or weak certificate validation (e.g., in IoT devices).<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n\n\n\n\n<p style=\"margin-top:var(--wp--preset--spacing--40);margin-bottom:var(--wp--preset--spacing--40)\">\ud83d\udee0\ufe0f <strong>Mitigation<\/strong>: Use certs from trusted CAs, rotate before expiration, validate properly. Automate renewals and installs with Autoinstall SSL.<\/p>\n\n\n\n\n<\/details>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<details class=\"wp-block-details\" name=\"first\"><summary><span class=\"custom-titler is-layout-flow wp-container-core-details-is-layout-f5bb311e wp-block-details-is-layout-flow\"><strong><strong><strong>Implementation <\/strong><\/strong>Vulnerabilities<\/strong><\/span> &#8211; These are flaws in how TLS libraries are coded \u2014 not in the protocol itself.<\/summary>\n\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Vulnerability<\/strong><\/td><td><strong>Affected Libraries<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>Heartbleed<\/strong><\/td><td>OpenSSL \u2014 allowed memory leakage of private keys and data.<\/td><\/tr><tr><td><strong>Lucky13<\/strong><\/td><td>Timing side-channel attack on CBC-mode ciphers.<\/td><\/tr><tr><td><strong>DROWN<\/strong><\/td><td>Cross-protocol flaw when SSLv2 is supported on same server.<\/td><\/tr><tr><td><strong>FREAK \/ Logjam<\/strong><\/td><td>Downgrade attacks due to support for weak RSA or DH.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n\n\n\n\n<p style=\"margin-top:var(--wp--preset--spacing--40);margin-bottom:var(--wp--preset--spacing--40)\">\ud83d\udee0\ufe0f <strong>Mitigation<\/strong>: Keep TLS libraries (e.g., OpenSSL, BoringSSL) up to date. Disable weak options.<\/p>\n\n\n\n\n<\/details>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<details class=\"wp-block-details\" name=\"first\"><summary><span class=\"custom-titler is-layout-flow wp-container-core-details-is-layout-f5bb311e wp-block-details-is-layout-flow\"><strong><strong><strong><strong>Configuration &amp; Operational <\/strong><\/strong><\/strong>Vulnerabilities<\/strong><\/span> &#8211; Even with strong protocols and ciphers, poor setup can expose your systems.<\/summary>\n\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Mistake<\/strong><\/td><td><strong>Risk<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>Not forcing HTTPS<\/strong><\/td><td>Allows downgrade or MITM attacks.<\/td><\/tr><tr><td><strong>No HSTS<\/strong><\/td><td>Enables SSL stripping.<\/td><\/tr><tr><td><strong>Open ports for SSLv2\/v3<\/strong><\/td><td>Attackers can probe and exploit legacy services.<\/td><\/tr><tr><td><strong>Weak DH parameters<\/strong><\/td><td>Easier to break key exchange.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n\n\n\n\n<p style=\"margin-top:var(--wp--preset--spacing--40);margin-bottom:var(--wp--preset--spacing--40)\">\ud83d\udee0\ufe0f <strong>Mitigation<\/strong>: Use security scanners (e.g., Vulnerability Scanner), enforce HTTPS, enable HSTS, close unused ports.<\/p>\n\n\n\n\n<\/details>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<details class=\"wp-block-details\" name=\"first\"><summary><span class=\"custom-titler is-layout-flow wp-container-core-details-is-layout-f5bb311e wp-block-details-is-layout-flow\"><strong><strong><strong><strong><strong>Client-Side Vulnerabilities<\/strong><\/strong><\/strong><\/strong><\/strong><\/span> &#8211; Older Browsers, poor app validation, &amp; dated iot devices are often a source of vulnerability.<\/summary>\n\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Issue<\/strong><\/td><td><strong>Example<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>Old browsers<\/strong><\/td><td>May still support SSL 3.0 or weak ciphers.<\/td><\/tr><tr><td><strong>Mobile apps<\/strong><\/td><td>Often don\u2019t validate certs properly, making them prone to MITM.<\/td><\/tr><tr><td><strong>IoT devices<\/strong><\/td><td>Frequently ship with outdated or insecure TLS stacks.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n\n\n\n\n<p style=\"margin-top:var(--wp--preset--spacing--40);margin-bottom:var(--wp--preset--spacing--40)\">\ud83d\udee0\ufe0f <strong>Mitigation<\/strong>: Educate users, enforce minimum TLS on server, patch apps and devices.<\/p>\n\n\n\n\n<\/details>\n<\/div>\n\n<\/div>\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading alignfull custom-h2-timeline\" style=\"margin-top:var(--wp--preset--spacing--50);margin-bottom:var(--wp--preset--spacing--30)\">Timeline of SSL\/TLS Vulnerability Breaches<\/h2>\n\n<\/div><\/div>\n\n<iframe src='https:\/\/cdn.knightlab.com\/libs\/timeline3\/latest\/embed\/index.html?source=v2%3A2PACX-1vR3cGPe1pqzzildQEHcUptCcwmuAswFGREW8EQuQ5ha-KYNVHDHwmpbnbXle-vvWqVsozj4lPNgd3ut&#038;font=Bevan-PontanoSans&#038;lang=en&#038;timenav_position=top&#038;initial_zoom=2&#038;width=100%25&#038;height=600' width='100%' height='650' webkitallowfullscreen mozallowfullscreen allowfullscreen frameborder='0'><\/iframe>\n\n<div class=\"width-fixer\">\n\n\n\n<div class=\"custom-list\">\n\n<h2 class=\"wp-block-heading alignfull custom-no-margin\" style=\"margin-top:var(--wp--preset--spacing--50)\">SSL\/TLS Vulnerability Mitigation Expert Guides<\/h2>\n\n\n\n<div class=\"wp-block-query alignfull is-layout-flow wp-block-query-is-layout-flow\"><ul class=\"wp-block-post-template is-layout-flow wp-block-post-template-is-layout-flow\"><li class=\"wp-block-post post-1903\"><a href=\"https:\/\/certpanel.com\/resources\/expert-guides\/ssl-tls-vulnerabilities\/what-is-tls-protocol-session-renegotiation-security-vulnerability-how-to-fix-it\/\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9fa5bd33 wp-block-columns-is-layout-flex\" style=\"padding-right:0;padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\"><figure style=\"height:100%;\" class=\"wp-block-post-featured-image\"><img loading=\"lazy\" decoding=\"async\" width=\"418\" height=\"200\" src=\"https:\/\/certpanel.com\/resources\/wp-content\/uploads\/ssl-session-renegotiationfeature2.jpg\" class=\"attachment-listing-thumb size-listing-thumb wp-post-image\" alt=\"What Is the TLS Protocol Session Renegotiation Security Vulnerability &amp; How Do You Fix It?\" style=\"height:100%;object-fit:contain;\" srcset=\"https:\/\/certpanel.com\/resources\/wp-content\/uploads\/ssl-session-renegotiationfeature2.jpg 418w, https:\/\/certpanel.com\/resources\/wp-content\/uploads\/ssl-session-renegotiationfeature2-300x144.jpg 300w\" sizes=\"auto, (max-width: 418px) 100vw, 418px\" \/><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\"><h3 class=\"wp-elements-88156fa88bb05408d3508e10d5fe7351 wp-block-post-title\">What Is the TLS Protocol Session Renegotiation Security Vulnerability &amp; How Do You Fix It?<\/h3>\n\n<div class=\"has-link-color wp-elements-491a88c1f4dc16838a1a2a4b2c332c0d wp-block-post-excerpt has-text-color has-accent-4-color\"><p class=\"wp-block-post-excerpt__excerpt\">SSL\/TLS protocol session renegotiation allows a client and server to update cryptographic parameters during an active session using a new handshake. Renegotiation in SSL is traditionally initiated by the server (i.e., server-initiated renegotiation), but it also can be initiated by the client (i.e., client-initiated renegotiation). While this legitimate SSL\/TLS handshake&hellip; <\/p><\/div><\/div>\n<\/div>\n\n<\/a><\/li><li class=\"wp-block-post post-1588\"><a href=\"https:\/\/certpanel.com\/resources\/openssl-heartbleed-attack-how-to-fix-the-vulnerability\/\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9fa5bd33 wp-block-columns-is-layout-flex\" style=\"padding-right:0;padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\"><figure style=\"height:100%;\" class=\"wp-block-post-featured-image\"><img loading=\"lazy\" decoding=\"async\" width=\"418\" height=\"200\" src=\"https:\/\/certpanel.com\/resources\/wp-content\/uploads\/fix-heartbleed-feature.jpg\" class=\"attachment-listing-thumb size-listing-thumb wp-post-image\" alt=\"OpenSSL Heartbleed Attack: How to Fix the Vulnerability\" style=\"height:100%;object-fit:contain;\" srcset=\"https:\/\/certpanel.com\/resources\/wp-content\/uploads\/fix-heartbleed-feature.jpg 418w, https:\/\/certpanel.com\/resources\/wp-content\/uploads\/fix-heartbleed-feature-300x144.jpg 300w\" sizes=\"auto, (max-width: 418px) 100vw, 418px\" \/><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\"><h3 class=\"wp-elements-88156fa88bb05408d3508e10d5fe7351 wp-block-post-title\">OpenSSL Heartbleed Attack: How to Fix the Vulnerability<\/h3>\n\n<div class=\"has-link-color wp-elements-491a88c1f4dc16838a1a2a4b2c332c0d wp-block-post-excerpt has-text-color has-accent-4-color\"><p class=\"wp-block-post-excerpt__excerpt\">The OpenSSL Heartbleed bug, also known as CVE-2014-0160, is one of the most serious security vulnerabilities that have been detected in the OpenSSL cryptographic library. This bug, found in 2014, allows an attacker to read sensitive data from server memory such as passwords, session cookies, and private keys. This gives&hellip; <\/p><\/div><\/div>\n<\/div>\n\n<\/a><\/li><li class=\"wp-block-post post-1578\"><a href=\"https:\/\/certpanel.com\/resources\/patching-the-lucky-13-vulnerability-solutions-for-iis-more\/\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9fa5bd33 wp-block-columns-is-layout-flex\" style=\"padding-right:0;padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\"><figure style=\"height:100%;\" class=\"wp-block-post-featured-image\"><img loading=\"lazy\" decoding=\"async\" width=\"418\" height=\"200\" src=\"https:\/\/certpanel.com\/resources\/wp-content\/uploads\/lucky-13-feature.jpg\" class=\"attachment-listing-thumb size-listing-thumb wp-post-image\" alt=\"Patching the LUCKY 13 Vulnerability: Solutions for IIS &#038; More\" style=\"height:100%;object-fit:contain;\" srcset=\"https:\/\/certpanel.com\/resources\/wp-content\/uploads\/lucky-13-feature.jpg 418w, https:\/\/certpanel.com\/resources\/wp-content\/uploads\/lucky-13-feature-300x144.jpg 300w\" sizes=\"auto, (max-width: 418px) 100vw, 418px\" \/><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\"><h3 class=\"wp-elements-88156fa88bb05408d3508e10d5fe7351 wp-block-post-title\">Patching the LUCKY 13 Vulnerability: Solutions for IIS &#038; More<\/h3>\n\n<div class=\"has-link-color wp-elements-491a88c1f4dc16838a1a2a4b2c332c0d wp-block-post-excerpt has-text-color has-accent-4-color\"><p class=\"wp-block-post-excerpt__excerpt\">LUCKY13 is an SSL\/TLS protocol vulnerability that uses weakness in CBC-mode cipher padding for attacks. This flaw makes it easy for attackers to perform side-channel attacks that decrypt secret information, including login details, credit cards, and session tokens. This post explains the LUCKY13 vulnerability, its effect on your server, and&hellip; <\/p><\/div><\/div>\n<\/div>\n\n<\/a><\/li><li class=\"wp-block-post post-1507\"><a href=\"https:\/\/certpanel.com\/resources\/ssl-vulnerability-management-tools-and-best-practices\/\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9fa5bd33 wp-block-columns-is-layout-flex\" style=\"padding-right:0;padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\"><figure style=\"height:100%;\" class=\"wp-block-post-featured-image\"><img loading=\"lazy\" decoding=\"async\" width=\"418\" height=\"200\" src=\"https:\/\/certpanel.com\/resources\/wp-content\/uploads\/vulnerability-management-feature-big-418x200.jpg\" class=\"attachment-listing-thumb size-listing-thumb wp-post-image\" alt=\"Managing SSL Vulnerabilities: SSL Vulnerability Tools &amp; Best Practices\" style=\"height:100%;object-fit:contain;\" srcset=\"https:\/\/certpanel.com\/resources\/wp-content\/uploads\/vulnerability-management-feature-big-418x200.jpg 418w, https:\/\/certpanel.com\/resources\/wp-content\/uploads\/vulnerability-management-feature-big-300x144.jpg 300w, https:\/\/certpanel.com\/resources\/wp-content\/uploads\/vulnerability-management-feature-big-1024x490.jpg 1024w, https:\/\/certpanel.com\/resources\/wp-content\/uploads\/vulnerability-management-feature-big-768x368.jpg 768w, https:\/\/certpanel.com\/resources\/wp-content\/uploads\/vulnerability-management-feature-big-840x400.jpg 840w, https:\/\/certpanel.com\/resources\/wp-content\/uploads\/vulnerability-management-feature-big.jpg 1258w\" sizes=\"auto, (max-width: 418px) 100vw, 418px\" \/><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\"><h3 class=\"wp-elements-88156fa88bb05408d3508e10d5fe7351 wp-block-post-title\">Managing SSL Vulnerabilities: SSL Vulnerability Tools &amp; Best Practices<\/h3>\n\n<div class=\"has-link-color wp-elements-491a88c1f4dc16838a1a2a4b2c332c0d wp-block-post-excerpt has-text-color has-accent-4-color\"><p class=\"wp-block-post-excerpt__excerpt\">In many ways, proper SSL vulnerability management is primarily about staying abreast of the latest technologies and best practices. By identifying weaknesses in those technologies (e.g., SSL and TLS protocols) and the ways they\u2019re managed, you can help mitigate the risks that cybercriminals love to exploit. As such, SSL vulnerabilities&hellip; <\/p><\/div><\/div>\n<\/div>\n\n<\/a><\/li><li class=\"wp-block-post post-1558\"><a href=\"https:\/\/certpanel.com\/resources\/what-is-the-freak-vulnerability-how-to-prevent-ssl-freak-attacks\/\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9fa5bd33 wp-block-columns-is-layout-flex\" style=\"padding-right:0;padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\"><figure style=\"height:100%;\" class=\"wp-block-post-featured-image\"><img loading=\"lazy\" decoding=\"async\" width=\"418\" height=\"200\" src=\"https:\/\/certpanel.com\/resources\/wp-content\/uploads\/prevent-freak-feature.jpg\" class=\"attachment-listing-thumb size-listing-thumb wp-post-image\" alt=\"What Is the FREAK Vulnerability? How to Prevent SSL FREAK Attacks\" style=\"height:100%;object-fit:contain;\" srcset=\"https:\/\/certpanel.com\/resources\/wp-content\/uploads\/prevent-freak-feature.jpg 418w, https:\/\/certpanel.com\/resources\/wp-content\/uploads\/prevent-freak-feature-300x144.jpg 300w\" sizes=\"auto, (max-width: 418px) 100vw, 418px\" \/><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\"><h3 class=\"wp-elements-88156fa88bb05408d3508e10d5fe7351 wp-block-post-title\">What Is the FREAK Vulnerability? How to Prevent SSL FREAK Attacks<\/h3>\n\n<div class=\"has-link-color wp-elements-491a88c1f4dc16838a1a2a4b2c332c0d wp-block-post-excerpt has-text-color has-accent-4-color\"><p class=\"wp-block-post-excerpt__excerpt\">The Factoring RSA Export Keys (FREAK) vulnerability, also known as CVE-2015-0204, is a major SSL\/TLS security problem for servers and clients that support outdated protocols and ciphers. In a nutshell, the FREAK Attack enables attackers to force systems to use vulnerable \u201cexport cipher suites\u201d and small key pairs. This allows&hellip; <\/p><\/div><\/div>\n<\/div>\n\n<\/a><\/li><li class=\"wp-block-post post-1548\"><a href=\"https:\/\/certpanel.com\/resources\/tls-ssl-logjam-attack-vulnerability-fix-cve-2015-4000-exploit-explained\/\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9fa5bd33 wp-block-columns-is-layout-flex\" style=\"padding-right:0;padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\"><figure style=\"height:100%;\" class=\"wp-block-post-featured-image\"><img loading=\"lazy\" decoding=\"async\" width=\"418\" height=\"200\" src=\"https:\/\/certpanel.com\/resources\/wp-content\/uploads\/logjam-exploit-feature.jpg\" class=\"attachment-listing-thumb size-listing-thumb wp-post-image\" alt=\"TLS\/SSL Logjam Attack Vulnerability fix &#038; CVE-2015-4000 exploit explained\" style=\"height:100%;object-fit:contain;\" srcset=\"https:\/\/certpanel.com\/resources\/wp-content\/uploads\/logjam-exploit-feature.jpg 418w, https:\/\/certpanel.com\/resources\/wp-content\/uploads\/logjam-exploit-feature-300x144.jpg 300w\" sizes=\"auto, (max-width: 418px) 100vw, 418px\" \/><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\"><h3 class=\"wp-elements-88156fa88bb05408d3508e10d5fe7351 wp-block-post-title\">TLS\/SSL Logjam Attack Vulnerability fix &#038; CVE-2015-4000 exploit explained<\/h3>\n\n<div class=\"has-link-color wp-elements-491a88c1f4dc16838a1a2a4b2c332c0d wp-block-post-excerpt has-text-color has-accent-4-color\"><p class=\"wp-block-post-excerpt__excerpt\">The Logjam attack exploits weak 512-bit Diffie-Hellman (DH) key exchanges in SSL\/TLS encryption. Such a weakness allows attackers to downgrade encryption and intercept or alter sensitive data. Learn how you can protect your server from the Logjam attack and secure your online communication.&nbsp; What is the Logjam Attack?&nbsp; The Logjam&hellip; <\/p><\/div><\/div>\n<\/div>\n\n<\/a><\/li><li class=\"wp-block-post post-1538\"><a href=\"https:\/\/certpanel.com\/resources\/what-is-the-drown-attack-how-to-patch-the-cve-2016-0800-exploit\/\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9fa5bd33 wp-block-columns-is-layout-flex\" style=\"padding-right:0;padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\"><figure style=\"height:100%;\" class=\"wp-block-post-featured-image\"><img loading=\"lazy\" decoding=\"async\" width=\"418\" height=\"200\" src=\"https:\/\/certpanel.com\/resources\/wp-content\/uploads\/prevent-drown-feature.jpg\" class=\"attachment-listing-thumb size-listing-thumb wp-post-image\" alt=\"What Is the DROWN Attack? How to Patch the CVE-2016-0800 Exploit\" style=\"height:100%;object-fit:contain;\" srcset=\"https:\/\/certpanel.com\/resources\/wp-content\/uploads\/prevent-drown-feature.jpg 418w, https:\/\/certpanel.com\/resources\/wp-content\/uploads\/prevent-drown-feature-300x144.jpg 300w\" sizes=\"auto, (max-width: 418px) 100vw, 418px\" \/><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\"><h3 class=\"wp-elements-88156fa88bb05408d3508e10d5fe7351 wp-block-post-title\">What Is the DROWN Attack? How to Patch the CVE-2016-0800 Exploit<\/h3>\n\n<div class=\"has-link-color wp-elements-491a88c1f4dc16838a1a2a4b2c332c0d wp-block-post-excerpt has-text-color has-accent-4-color\"><p class=\"wp-block-post-excerpt__excerpt\">What Is the SSL DROWN Attack Vulnerability?&nbsp; The DROWN attack, or Decrypting RSA with Obsolete and Weakened Encryption, is an SSL\/TLS vulnerability that allows attackers to decrypt encrypted traffic. It targets servers that still support the outdated SSL 2.0 (SSLv2) protocol and share cryptographic keys between SSLv2 and modern TLS&hellip; <\/p><\/div><\/div>\n<\/div>\n\n<\/a><\/li><li class=\"wp-block-post post-1530\"><a href=\"https:\/\/certpanel.com\/resources\/what-is-ssl-poodle-attack-how-to-fix-ssl-poodle-vulnerability\/\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9fa5bd33 wp-block-columns-is-layout-flex\" style=\"padding-right:0;padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\"><figure style=\"height:100%;\" class=\"wp-block-post-featured-image\"><img loading=\"lazy\" decoding=\"async\" width=\"418\" height=\"200\" src=\"https:\/\/certpanel.com\/resources\/wp-content\/uploads\/prevent-poodle-feature.jpg\" class=\"attachment-listing-thumb size-listing-thumb wp-post-image\" alt=\"What Is the POODLE Attack in SSL and How Can You Prevent It?\" style=\"height:100%;object-fit:contain;\" srcset=\"https:\/\/certpanel.com\/resources\/wp-content\/uploads\/prevent-poodle-feature.jpg 418w, https:\/\/certpanel.com\/resources\/wp-content\/uploads\/prevent-poodle-feature-300x144.jpg 300w\" sizes=\"auto, (max-width: 418px) 100vw, 418px\" \/><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\"><h3 class=\"wp-elements-88156fa88bb05408d3508e10d5fe7351 wp-block-post-title\">What Is the POODLE Attack in SSL and How Can You Prevent It?<\/h3>\n\n<div class=\"has-link-color wp-elements-491a88c1f4dc16838a1a2a4b2c332c0d wp-block-post-excerpt has-text-color has-accent-4-color\"><p class=\"wp-block-post-excerpt__excerpt\">The POODLE Attack, which stands for Padding Oracle on Downgraded Legacy Encryption Attack, is a well-known vulnerability in systems that support SSL 3.0 (CVE-2014-3566). Despite being deprecated, many modern systems continue to enable SSL 3.0 for the sake of compatibility with legacy systems, making them vulnerable to POODLE. In this&hellip; <\/p><\/div><\/div>\n<\/div>\n\n<\/a><\/li><li class=\"wp-block-post post-1521\"><a href=\"https:\/\/certpanel.com\/resources\/what-is-heartbleed-vulnerability-and-how-to-protect-your-site-from-heartbleed-bug\/\">\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9fa5bd33 wp-block-columns-is-layout-flex\" style=\"padding-right:0;padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\"><figure style=\"height:100%;\" class=\"wp-block-post-featured-image\"><img loading=\"lazy\" decoding=\"async\" width=\"418\" height=\"200\" src=\"https:\/\/certpanel.com\/resources\/wp-content\/uploads\/what-is-heartbleed-feature.jpg\" class=\"attachment-listing-thumb size-listing-thumb wp-post-image\" alt=\"What is Heartbleed Vulnerability and how to protect your site from Heartbleed Bug\" style=\"height:100%;object-fit:contain;\" srcset=\"https:\/\/certpanel.com\/resources\/wp-content\/uploads\/what-is-heartbleed-feature.jpg 418w, https:\/\/certpanel.com\/resources\/wp-content\/uploads\/what-is-heartbleed-feature-300x144.jpg 300w\" sizes=\"auto, (max-width: 418px) 100vw, 418px\" \/><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\"><h3 class=\"wp-elements-88156fa88bb05408d3508e10d5fe7351 wp-block-post-title\">What is Heartbleed Vulnerability and how to protect your site from Heartbleed Bug<\/h3>\n\n<div class=\"has-link-color wp-elements-491a88c1f4dc16838a1a2a4b2c332c0d wp-block-post-excerpt has-text-color has-accent-4-color\"><p class=\"wp-block-post-excerpt__excerpt\">Heartbleed is a security bug that was found in OpenSSL cryptographic library back in 2014. Also known as CVE-2014-0160, this bug makes it possible for an attacker to steal sensitive information like private keys, session cookies, and passwords by exploiting the Heartbeat extension in OpenSSL. Here we&#8217;ll discuss Heartbleed, how&hellip; <\/p><\/div><\/div>\n<\/div>\n\n<\/a><\/li><\/ul>\n\n<\/div>\n\n<\/div>\n\n<h2 class=\"wp-block-heading alignfull\" style=\"margin-top:var(--wp--preset--spacing--50)\">SSL\/TLS Vulnerability Statistics<\/h2>\n\n\n\n<p>How many websites do you visit that pass verification but still use vulnerable and deprecated configurations?  We took the top 100 websites (by traffic) and compared their SSL\/TLS configurations to a random cross-section of sites across the web and compared the two. See how they stack up:<\/p>\n\n\n\n<figure class=\"wp-block-table alignfull\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>SSL\/TLS Best Practice<\/strong><\/th><th><strong>Top 100 websites<\/strong><\/th><th><strong>Random Cross-section<\/strong><\/th><\/tr><\/thead><tbody><tr><td>SSL V2 still enabled<\/td><td>0%<\/td><td>0.18%<\/td><\/tr><tr><td>SSL V3 still enabled<\/td><td>1%<\/td><td>1.58%<\/td><\/tr><tr><td>Has TLS 1<\/td><td>40%<\/td><td>23%<\/td><\/tr><tr><td>Has TLS 1.1<\/td><td>41%<\/td><td>25%<\/td><\/tr><tr><td>TLS 1.2 <strong>not <\/strong>enabled<\/td><td>0%<\/td><td>40%<\/td><\/tr><tr><td>TLS 1.3 <strong>not <\/strong>enabled<\/td><td>14%<\/td><td>39%<\/td><\/tr><tr><td>HSTS Not Offered<\/td><td>45%<\/td><td>83%<\/td><\/tr><tr><td>Missing http: redirect<\/td><td>29%<\/td><td>23%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading alignfull\" style=\"margin-top:var(--wp--preset--spacing--50)\">SSL\/TLS Risks &amp; Vulnerabilities Course<\/h2>\n\n\n\n<p class=\"is-style-default\">Directly from Digicert&#8217;s SSL\/TLS Professional Certification Training course, here you can learn about the various risks associated with improper or deprecated configurations. Watch the course in the video below:<\/p>\n\n\n\n<div class=\"wp-block-columns alignfull is-layout-flex wp-container-core-columns-is-layout-7fc3d43a wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Video Contents:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Expired\/Misconfigured Certificates<\/li>\n\n\n\n<li>Self Signed &amp; Vendor Certificates<\/li>\n\n\n\n<li>Attacks on SSL: Heartbleed, POODLE, etc.<\/li>\n\n\n\n<li>Phishing Attacks<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-embed is-type-video is-provider-vimeo wp-block-embed-vimeo wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"SSL\/TLS Professional Certification Training: Risks &amp; Vulnerabilities\" src=\"https:\/\/player.vimeo.com\/video\/708853159?dnt=1&amp;app_id=122963\" width=\"500\" height=\"281\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write; encrypted-media; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\"><\/iframe>\n<\/div><\/figure>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n\n\n<\/div>","protected":false},"excerpt":{"rendered":"<p>The ultimate resource for preventing SSL\/TLS based attacks. Welcome to our SSL\/TLS Vulnerabilities resource hub! Learn about the six different types of SSL\/TLS vulnerabilities and the ideal configurations to patch known issues. Browse our expert guides to get an in-depth description of some of the more common SSL vulnerabilities and what needs to be done<\/p>\n","protected":false},"author":10,"featured_media":1599,"parent":996,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"wp-custom-template-expert-guides-detail","meta":{"_acf_changed":false,"_eb_attr":"","footnotes":""},"class_list":["post-1130","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>SSL\/TLS Vulnerabilities<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/certpanel.com\/resources\/ssl-tls-vulnerabilities\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SSL\/TLS Vulnerabilities\" \/>\n<meta property=\"og:description\" content=\"The ultimate resource for preventing SSL\/TLS based attacks. 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