Cross-site scripting in cgit (Alpine package)

1) Cross-site scripting

EUVDB-ID: #VU32342

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2016-1900

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. The vulnerability allows remote attackers with permission to write to a repository to inject arbitrary HTTP headers and conduct HTTP response splitting attacks or cross-site scripting (XSS) attacks via newline characters in a filename.

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

Install update from vendor's website.

Vulnerable software versions

cgit (Alpine package): 0.8.3.1-r0 - 0.10.1-r0

CPE2.3

• cpe:2.3:a:alpine:cgit_alpine_package:0.8.3.1-r0:*:*:*:*:alpine_linux:*:1.10
• cpe:2.3:a:alpine:cgit_alpine_package:0.8.3.3-r0:*:*:*:*:alpine_linux:*:2.1
• cpe:2.3:a:alpine:cgit_alpine_package:0.9-r0:*:*:*:*:alpine_linux:*:2.2

External links

https://git.alpinelinux.org/aports/commit/?id=b4162b52de066db4f8df3ff8ceceac451f0c3c7e
https://git.alpinelinux.org/aports/commit/?id=c8d5b3017f998d5284638c262ae52971c8b6c1cb
https://git.alpinelinux.org/aports/commit/?id=4e190684abf73dd51d883d392f574ae9eedca58f

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.