#VU30699 Code Injection in Serendipity - CVE-2011-1133

Vulnerability identifier: #VU30699

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2011-1133

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Serendipity
Other software / Other software solutions

Vendor: s9y.org

Description

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

The vulnerability exists due to improper input validation in plugins/ExtendedFileManager/backend.php. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Update to version 1.5.5.

Vulnerable software versions

Serendipity: 1.5.1 - 1.5.4

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External links
https://blog.s9y.org/archives/224-Important-Security-Update-Serendipity-1.5.5-released.html
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=611661
https://security-tracker.debian.org/tracker/CVE-2011-1133
https://www.openwall.com/lists/oss-security/2011/03/02/5

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.