Zero-day Vulnerability Database

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Zero-day vulnerabilities discovered: 1

Security bypass in vBulletin
CVE-2013-6129

Security bypass

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to an error in the upgrade.php script. By using the customerid, htmldata[password], htmldata[confirmpassword], and htmldata[email] parameters, a remote attacker can create administrative accounts.

Successful exploitation of the vulnerability results in security bypass on the vulnerable system.

Note: the vulnerability was being actively exploited.

Software: vBulletin

Known/fameous malware:

PHP/Exploit.CVE-2013-6129.A virus.

Links:

http://www.vbulletin.com/forum/forum/vbulletin-announcements/vbulletin-announcements_aa/3991423-vbul...
https://www.helpnetsecurity.com/2013/10/09/dangerous-vbulletin-exploit-in-the-wild/

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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.