Zero-day Vulnerability Database

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Zero-day vulnerabilities discovered: 1

Remote code execution in RealNetworks RealPlayer
CVE-2007-5601

Stack-based buffer overflow

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

The vulnerability exists due to boundary error when processing playlist names passed via "Import()" method to RealPlayer IERPCtl ActiveX control (ierpplug.dll). A remote attacker can create a specially crafted web page, trick the victim into opening it, cause stack-based buffer overflow and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability results in compromise of vulnerable system.

Note: this vulnerability is being actively exploited.

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Exploit code for this vulnerability was used during Chinese weekend compromise campaign in May 2008.

Software: RealPlayer

Exploit code for this vulnerability was used during Chinese weekend compromise campaign in May 2008.

Links:

https://www.symantec.com/connect/blogs/realplayer-exploit-loose
http://www.kb.cert.org/vuls/id/871673
https://www.symantec.com/security_response/attacksignatures/detail.jsp?asid=22629
http://blog.trendmicro.com/trendlabs-security-intelligence/chinese-weekend-compromise/
http://www.pcworld.com/article/146048/article.html
http://www.sudosecure.com/malicious-site-analysis-for-dota11cn-injection/

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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.