#VU41706 Cross-site scripting in SKS Keyserver - CVE-2014-3207

Vulnerability identifier: #VU41706

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2014-3207

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SKS Keyserver
Server applications / Other server solutions

Vendor: sks-keyservers.net

Description

Vulnerability allows a remote attacker to perform Cross-site scripting attacks.

An input validation error exists in wserver.ml in SKS Keyserver before 1.1.5 when processing PATH_INFO to pks/lookup/undefined1. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim's browser in security context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

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

Vulnerable software versions

SKS Keyserver: 0.1.0 - 1.1.3

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External links
https://secunia.com/advisories/57965
https://www.securityfocus.com/bid/67198
https://bitbucket.org/skskeyserver/sks-keyserver/commits/88d453cdc858d1352c61a4d4a6cd5b1ac17f2724
https://bitbucket.org/skskeyserver/sks-keyserver/issue/26/unfiltered-xss
https://bugzilla.mozilla.org/show_bug.cgi?id=952077

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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.