Zero-day vulnerability in Adobe Flash Player

Buffer overflow
CVE-2013-0633

The vulnerability was reported to Adobe by Sergey Golovanov and Alexander Polyakov of Kaspersky.
The vulnerability was being used in a series of targeted attacks mostly against human rights activists and political dissidents from Africa and the Middle East.

Known malware:

Exploit: SWF/CVE-2013-0633.

Vulnerability details

Advisory: SB2013020701 - Two remote code execution vulnerabilities in Adobe Flash Player

Vulnerable component: Adobe Flash Player

CVE-ID: CVE-2013-0633

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-119 - Memory corruption

Description:

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

The weakness exists due to buffer overflow in ActiveX version of Flash Player. A remote attacker can create specially crafted .swf file, trick the victim into opening it, trigger memory corruption 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 - Regular Expression Heap Overflow (Metasploit) [Exploit-DB]

External links:

http://www.adobe.com/support/security/bulletins/apsb13-04.html
https://www.symantec.com/security_response/attacksignatures/detail.jsp?asid=26453
https://www.symantec.com/security_response/vulnerability.jsp?bid=57788
http://krebsonsecurity.com/tag/cve-2013-0633/
https://www.fireeye.com/blog/threat-research/2013/02/lady-boyle-comes-to-town-with-a-new-exploit.htm...
https://eromang.zataz.com/2013/02/26/gong-da-gondad-exploit-pack-add-flash-cve-2013-0634-support/
http://www.kaspersky.com/au/about/news/virus/2013/Kaspersky_Lab_Experts_Credited_for_Identifying_and...
https://securelist.com/blog/research/64215/adobe-flash-player-0-day-and-hackingteams-remote-control-...
http://www.pcworld.com/article/2027916/researchers-surveillance-malware-distributed-via-flash-player-exploit.html
http://www.infoworld.com/article/2613576/security/adobe-blames-na-ve-office-users-for-latest-flash-p...
https://securityledger.com/2013/02/adobe-pushes-fix-for-flash-player-cites-attacks-on-windows-mac-an...
https://www.intego.com/mac-security-blog/two-adobe-vulnerabilities-attacked-in-the-wild-now-patched/
http://www.pcadvisor.co.uk/feature/security/adobe-releases-emergency-flash-fixes-for-two-zero-day-bu...

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.