Permissions, Privileges, and Access Controls in Freedesktop PolicyKit



| Updated: 2020-08-11
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2011-4945
CWE-ID CWE-264
Exploitation vector Network
Public exploit N/A
Vulnerable software
PolicyKit
Client/Desktop applications / Other client software

Vendor Freedesktop.org

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU43447

Risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2011-4945

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

PolicyKit: 0.103

CPE2.3 External links

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
http://bugs.gentoo.org/show_bug.cgi?id=401513
http://launchpad.net/ubuntu/+source/policykit-1/0.103-1


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.



###SIDEBAR###