SB2012100202 - Permissions, Privileges, and Access Controls in Freedesktop PolicyKit
Published: October 2, 2012 Updated: August 11, 2020
Security Bulletin ID
SB2012100202
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2011-4945)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
PolicyKit 0.103 sets the AdminIdentities to "wheel" by default, which allows local users in the wheel group to gain root privileges without authentication.
Remediation
Install update from vendor's website.
References
- http://cgit.freedesktop.org/PolicyKit/commit/?id=763faf434b445c20ae9529100d3ef5290976d0c9
- http://patch-tracker.debian.org/patch/series/view/policykit-1/0.104-2/05_revert-admin-identities-unix-group-wheel.patch
- http://secunia.com/advisories/48817
- http://security.gentoo.org/glsa/glsa-201204-06.xml
- http://www.mail-archive.com/polkit-devel@lists.freedesktop.org/msg00327.html
- http://www.openwall.com/lists/oss-security/2012/03/28/1
- http://www.openwall.com/lists/oss-security/2012/03/28/2
- https://bugs.gentoo.org/show_bug.cgi?id=401513
- https://launchpad.net/ubuntu/+source/policykit-1/0.103-1