Cross-site scripting in cups (Alpine package)

1) Cross-site scripting

EUVDB-ID: #VU32417

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-2015-1159

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

Exploit availability: No

Description

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

An input validation error exists in the cgi_puts function in cgi-bin/template.c in the template engine in CUPS before 2.0.3 when processing QUERY parameter to help/. 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

Install update from vendor's website.

Vulnerable software versions

cups (Alpine package): 1.7.4-r1

CPE2.3

• cpe:2.3:o:alpine:cups_alpine_package:1.7.4-r1:*:*:*:*:alpine_linux:*:2.6

External links

https://git.alpinelinux.org/aports/commit/?id=2bd688203ac9a6bade959c7857aa827a882a5a26
https://git.alpinelinux.org/aports/commit/?id=ff5aca650b718685ddf975d4f7f26993fc79f235
https://git.alpinelinux.org/aports/commit/?id=5f589ae6722e270d6297726d8ef6ab405dc22d93
https://git.alpinelinux.org/aports/commit/?id=40283b5ee346c43fe039dffe33f22e009c0094a1

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.