Cross-site scripting in cgit

1) Cross-site scripting

EUVDB-ID: #VU32341

Risk: Low

CVSSv3.1: 3.2 [AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-1899

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the ui-blob handler in CGit before 0.12. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in 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

Update to version 0.12.

Vulnerable software versions

cgit: 0.1 - 0.11.2

External links

http://git.zx2c4.com/cgit/commit/?id=1c581a072651524f3b0d91f33e22a42c4166dd96
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176167.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176198.html
http://lists.opensuse.org/opensuse-updates/2016-01/msg00067.html
http://lists.opensuse.org/opensuse-updates/2016-01/msg00084.html
http://lists.zx2c4.com/pipermail/cgit/2016-January/002790.html
http://lists.zx2c4.com/pipermail/cgit/2016-January/002817.html
http://www.debian.org/security/2016/dsa-3545
http://www.openwall.com/lists/oss-security/2016/01/14/3
http://www.openwall.com/lists/oss-security/2016/01/14/6

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.