Zero-day vulnerability in Adobe Flash Player

Type Confusion
CVE-2012-0779

This vulnerability has been exploited in the wild as part of the "World Uyghur Congress Invitation.doc" e-mail attack.

Known malware:

TROJ_SCRIPBRID.A; backdoor BKDR_INJECT.EVL.

Vulnerability details

Advisory: SB2012050401 - Remote code execution in Adobe Flash Player

Vulnerable component: Adobe Flash Player

CVE-ID: CVE-2012-0779

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-843 - Type confusion

Description:

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to object type confusion error when processing .swf files. A remote attacker can create a specially crafted .swf file, trick the victim into opening it and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Note: the vulnerability was being actively exploited.

Public Exploits:

- Adobe Flash Player - Object Type Confusion (Metasploit) [Exploit-DB]

External links:

https://www.adobe.com/support/security/bulletins/apsb12-09.html
http://contagiodump.blogspot.com/2012/05/may-3-cve-2012-0779-world-uyghur.html
https://www.symantec.com/connect/blogs/targeted-attacks-using-confusion-cve-2012-0779
http://blog.trendmicro.com/trendlabs-security-intelligence/recent-threats-highlight-vulnerabilities-...
https://krebsonsecurity.com/2012/05/critical-flash-update-fixes-zero-day-flaw/
https://www.alienvault.com/blogs/labs-research/several-targeted-attacks-exploiting-adobe-flash-playe...
https://blogs.technet.microsoft.com/mmpc/2012/05/24/a-technical-analysis-of-adobe-flash-player-cve-2...
http://blog.shadowserver.org/2012/05/15/cyber-espionage-strategic-web-compromises-trusted-websites-s...
https://www.reddit.com/r/netsec/comments/ta12k/several_targeted_attacks_exploiting_adobe_flash/
http://thehackernews.com/2012/09/operation-aurora-other-zero-day-attacks.html
http://www.securityweek.com/adobe-patches-zero-day-vulnerability-used-targeted-attacks
https://www.symantec.com/security_response/attacksignatures/detail.jsp?asid=25718


About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.