Zero-day vulnerability in Adobe Flash Player

Integer overflow
CVE-2015-8651

Known malware:

Exploit kits: Angler, Neutrino, Nuclear Pack and RIG

Vulnerability details

Advisory: SB2015122801 - Multiple vulnerabilities in Adobe Flash Player

Vulnerable component: Adobe Flash Player

CVE-ID: CVE-2015-8651

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 integer overflow. A remote attacker can create a specially crafted Web site, trick the victim into visiting it, trigger memory corruption and execute arbitrary code with privileges of the current user.

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

Note: the vulnerability was being actively exploited.

External links:

https://helpx.adobe.com/security/products/flash-player/apsb16-01.html
https://blogs.forcepoint.com/security-labs/popular-site-leads-angler-ek-cve-2015-8651-flash-player-e...
https://www.symantec.com/security_response/writeup.jsp?docid=2015-122818-3536-99&tabid=2
https://blogs.forcepoint.com/security-labs/popular-site-leads-angler-ek-cve-2015-8651-flash-player-e...
https://krebsonsecurity.com/tag/cve-2015-8651/
https://blogs.technet.microsoft.com/mmpc/2016/06/20/reverse-engineering-dubniums-flash-targeting-exp...
https://krebsonsecurity.com/tag/cve-2015-8651/
https://www.scmagazine.com/adobe-issues-critical-flash-player-patch/article/533434/
http://vulnerablespace.blogspot.com/2016/06/malware-analysing-and-repurposing-rigs.html
https://blog.qualys.com/laws-of-vulnerabilities/2015/12/28/last-adobe-0-day-patched-for-the-year
https://www.reddit.com/r/ReverseEngineering/comments/43a1i5/an_analysis_on_the_principle_of_cve20158...
http://www.securityweek.com/adobe-issues-emergency-patch-flash-zero-day-under-attack
http://securityaffairs.co/wordpress/43131/cyber-crime/adobe-flash-zero-day.html
http://securityaffairs.co/wordpress/54120/reports/exploit-kits-top-flaws.html
https://blog.malwarebytes.com/threat-analysis/exploits-threat-analysis/2016/07/a-look-into-some-rig-...
http://www.darkreading.com/vulnerabilities---threats/here-are-4-vulnerabilities-ransomware-attacks-a...
https://www.recordedfuture.com/recent-ransomware-vulnerabilities/
http://resources.infosecinstitute.com/most-exploited-vulnerabilities-by-whom-when-and-how/#gref
http://neurogadget.net/2016/12/08/adobe-flash-player-bugs-issues-exploits-computers/48666
http://thehackernews.com/2015/12/adobe-flash-security-update.html
http://www.theregister.co.uk/2015/12/28/adobe_flash_security_update/
https://www.solutionary.com/resource-center/blog/2015/12/adobe-flash-player-vulnerability/
http://wccftech.com/flash-player-receives-emergency-security-patch/
http://news.softpedia.com/news/adobe-fixes-flash-zero-day-bug-discovered-by-huawei-498184.shtml

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.