{"id":14567,"date":"2020-05-26T00:03:00","date_gmt":"2020-05-25T22:03:00","guid":{"rendered":"http:\/\/159.69.82.204\/win\/?p=14567"},"modified":"2020-05-25T23:37:38","modified_gmt":"2020-05-25T21:37:38","slug":"hackerangriff-per-0-day-exploit-auf-sophos-firewalls","status":"publish","type":"post","link":"https:\/\/borncity.com\/win\/2020\/05\/26\/hackerangriff-per-0-day-exploit-auf-sophos-firewalls\/","title":{"rendered":"Hacker attack on Sophos firewalls via 0-day exploit"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" style=\"float: left; margin: 0px 10px 0px 0px; display: inline\" src=\"https:\/\/www.borncity.com\/blog\/wp-content\/uploads\/2015\/01\/Schutz.jpg\" width=\"40\" align=\"left\" height=\"47\">[<a href=\"https:\/\/www.borncity.com\/blog\/2020\/05\/25\/hackerangriff-per-0-day-exploit-auf-sophos-firewalls\/\" target=\"_blank\" rel=\"noopener noreferrer\">German<\/a>]Hackers have attempted to use a 0-day exploit in Sophos firewalls for attacks. However, the vendor responded quickly with a patch, and the attacks failed on updated systems. <\/p>\n<p><!--more--><\/p>\n<p>The following tweet brought that case to my attention and ZDNet has published <a href=\"https:\/\/www.zdnet.com\/article\/hackers-tried-and-failed-to-install-ransomware-using-a-zero-day-in-sophos-firewalls\/\" target=\"_blank\" rel=\"noopener noreferrer\">this article<\/a>.&nbsp; <\/p>\n<blockquote class=\"twitter-tweet\">\n<p lang=\"en\" dir=\"ltr\">Hackers tried (and failed) to install ransomware using a zero-day in Sophos firewalls <a href=\"https:\/\/t.co\/l4iKYiJgNj\">https:\/\/t.co\/l4iKYiJgNj<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/hacking?src=hash&amp;ref_src=twsrc%5Etfw\">#hacking<\/a> <a href=\"https:\/\/t.co\/6FZucGrsOi\">pic.twitter.com\/6FZucGrsOi<\/a><\/p>\n<p>\u2014 Moix Security (@moixsec) <a href=\"https:\/\/twitter.com\/moixsec\/status\/1264298208395747328?ref_src=twsrc%5Etfw\">May 23, 2020<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script> <\/p>\n<p>The relevant update for the Sophos firewalls has probably been available since last week (21.5.2020). <\/p>\n<h2>Attacks in April 2020<\/h2>\n<p>The original attacks took place between 22 and 26 April 2020. In a report released at the time, Sophos said an attacker had discovered an SQL injection vulnerability (CVE-2020-12271) in the Sophos XG firewall.<\/p>\n<p>The hackers then used zero-day to attack the PostgreSQL database server built into the firewall and install malware on the device. The original payload was a Trojan &#8211; which the company calls Asnar\u00f6k. It collected files containing usernames and passwords for Sophos Firewall accounts. In addition, the attackers left two files that acted as backdoors, providing a way to control infected devices.<\/p>\n<p>When Sophos became aware of the attack, the company promptly issued a fix. The attackers noticed this and probably panicked. They modified the attack routine to replace their original data theft payload and be able to demand a ransom. Further details can be found in the ZDNet article and <a href=\"https:\/\/news.sophos.com\/en-us\/2020\/05\/21\/asnarok2\/\" target=\"_blank\" rel=\"noopener noreferrer\">this Sophos article<\/a>. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[German]Hackers have attempted to use a 0-day exploit in Sophos firewalls for attacks. However, the vendor responded quickly with a patch, and the attacks failed on updated systems.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[580],"tags":[243,69],"class_list":["post-14567","post","type-post","status-publish","format-standard","hentry","category-security","tag-ransomware","tag-security"],"_links":{"self":[{"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/posts\/14567","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/comments?post=14567"}],"version-history":[{"count":0,"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/posts\/14567\/revisions"}],"wp:attachment":[{"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/media?parent=14567"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/categories?post=14567"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/tags?post=14567"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}