The French security expert Kafeine has discovered an unpatched vulnerability (0day) in Flash Player is being exploited by Angler Exploit Kit.
The Angler exploit kit is one of the most popular crimeware kit and according to the French security researcher Kafeine it was enriched with a fresh Adobe Flash zero-day vulnerability. Kafeine has discovered a new variant of the Angler exploit kit that exploit three different vulnerabilities in Flash Player, including the zero-day flaw for the latest version of Flash (version 126.96.36.1997) in several versions of Internet Explorer running on Windows 7 and Windows 8.
This new version of the Angler exploit kit includes also the code to exploit two known bugs, the researcher that he first discovered the exploit for the zero-day in Flash on Wednesday and that it is being used in the wild to install a the Bedep malware.
The Bedep malware was already associated in the past with previous versions of Angler exploit kit, the malicious code is used by bad actors for fraudulent activities operations.
The criminal crew behind Angler exploit kit demonstrated have already exploited in the past flaw flaws, in particular its members have always used exploits for freshly patched Flash vulnerabilities, just after a few days of Adobe publishing fixes.
Kafeine explained that that not all instances of the Angler exploit kit are using the new Flash zero-day exploit and according the results of his tests the following browser versions are vulnerable:
Windows XP, IE6 to 9 obviously. Flash 188.8.131.527
Windows 7, IE8 , Flash 184.108.40.2067 : UA : Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0)
Win 8 IE10 with Windows8-RT-KB3008925-x86 (Flash 220.127.116.11) -UA : Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; Trident/6.0)
Kafeine has verified that IE 10 on Windows 8, IE 8 on Windows 7 and IE 6-9 on Windows XP all are being exploited, meanwhile Chrome safe such as a fully patched Windows 8.1. Kafeine hasn’t disclosed the MD5 of the new exploit, he is suggesting to disable Flash Player since the flaw will be fixed.
“Disabling Flash player for some days might be a good idea,” he said.
Adobe declared that it is aware of the new Angler exploit kit and is already investigating it.
Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer.
Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US.
Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines.
Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”.