Link following in CUPS - CVE-2013-6891

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Main Vulnerability Database Vulnerabilities #VU32580

Link following in CUPS - CVE-2013-6891

Published: January 26, 2014 / Updated: July 28, 2020


Vulnerability identifier: #VU32580
CSH Severity: Low
CVSS v4: 2.1 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2013-6891
CWE-ID: CWE-59
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local non-authenticated attacker to gain access to sensitive information.

lppasswd in CUPS before 1.7.1, when running with setuid privileges, allows local users to read portions of arbitrary files via a modified HOME environment variable and a symlink attack involving .cups/client.conf.


Affected software

CUPS
cups (Alpine package)

How to mitigate CVE-2013-6891

Install update from vendor's website.

CUPS - update to 1.7.1
cups (Alpine package) - update to 1.7.1-r0

External References

Related Security Bulletins