{"id":67691,"date":"2015-05-17T16:00:37","date_gmt":"2015-05-17T16:00:37","guid":{"rendered":"http:\/\/www.esri.com\/arcgis-blog\/products\/product\/uncategorized\/venom-logjam-vulnerability-hype\/"},"modified":"2022-02-16T11:31:20","modified_gmt":"2022-02-16T19:31:20","slug":"venom-logjam-vulnerability-hype","status":"publish","type":"blog","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/trust-arcgis\/administration\/venom-logjam-vulnerability-hype","title":{"rendered":"VENOM & Logjam Vulnerability Hype"},"author":3911,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_searchwp_excluded":""},"categories":[37501],"tags":[24081,24071],"industry":[],"product":[763582],"class_list":["post-67691","blog","type-blog","status-publish","format-standard","hentry","category-administration","tag-ssamymlgp","tag-security","product-trust-arcgis"],"acf":{"short_description":"Mid-May was a busy month for vulnerabilities being covered by media, so we've consolidated information about two of the most\u00a0broadcasted...","flexible_content":[{"acf_fc_layout":"content","content":"

Mid-May was a busy month for vulnerabilities being covered by media, so we’ve consolidated information about two of the most\u00a0broadcasted vulnerabilities here.<\/p>\n

VENOM Vulnerability Information:<\/strong><\/p>\n

On May 13, 2015, a hypervisor vulnerability was disclosed CVE-2015-3456 referred to as VENOM that received significant media attention.\u00a0 ArcGIS Online is not hosted within vulnerable cloud infrastructure providers and is therefore not vulnerable itself.<\/p>\n

For customers utilizing our products on virtual machines other than Microsoft or VMWare, we recommend checking with your virtual machine vendor for potential patches.<\/p>\n

Logjam Vulnerability Information:<\/strong><\/p>\n

On May 20, 2015, a vulnerability was disclosed (CVE-2015-4000) with the cryptographic algorithm Diffie-Hellman key exchange.\u00a0 It is used to\u00a0allow Internet protocols (such as HTTPS)\u00a0to agree on a shared key and negotiate a secure connection.<\/p>\n

While ArcGIS Online was not vulnerable to utilizing higher risk\u00a0DHE_Export ciphers, Esri recently disabled a cipher utilizing\u00a0Diffie-Hellman 1024-bits which had the potential to be vulnerable to\u00a0more advanced state-level attacks.\u00a0 This is not expected to disrupt access of any current clients to ArcGIS Online.<\/p>\n

Logjam <\/a>has both server and browser-side vulnerabilities, so please ensure your systems are updated as necessary.<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The Security Standards & Architecture Team<\/em><\/p>\n

References:<\/strong>
\nVENOM – https:\/\/web.nvd.nist.gov\/view\/vuln\/detail?vulnId=CVE-2015-3456<\/a>
\nLogjam – https:\/\/web.nvd.nist.gov\/view\/vuln\/detail?vulnId=CVE-2015-4000<\/a><\/p>\n"}],"authors":[{"ID":3911,"user_firstname":"Michael","user_lastname":"Young","nickname":"Michael Young","user_nicename":"myoung1000","display_name":"Michael Young","user_email":"myoung@esri.com","user_url":"http:\/\/trust.arcgis.com","user_registered":"2018-03-02 00:15:29","user_description":"","user_avatar":""}],"related_articles":"","card_image":false,"wide_image":false},"yoast_head":"\nVENOM & Logjam Vulnerability Hype<\/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:\/\/www.esri.com\/arcgis-blog\/products\/trust-arcgis\/administration\/venom-logjam-vulnerability-hype\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"VENOM & Logjam Vulnerability Hype\" \/>\n<meta property=\"og:url\" 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