#VU39138 Cross-site request forgery in Serendipity - CVE-2017-8101

Vulnerability identifier: #VU39138

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-8101

CWE-ID: CWE-352

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 perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Serendipity: 2.0.5

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External links
https://seclists.org/fulldisclosure/2017/Apr/52
https://github.com/s9y/Serendipity/issues/452

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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.