Race condition in PolicyKit - CVE-2011-1485
Published: May 31, 2011 / Updated: August 11, 2020
Vulnerability identifier: #VU45010
CSH Severity: High
CVSS v4: 8.4 [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]
CVE-ID: CVE-2011-1485
CWE-ID: CWE-362
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
Race condition in the pkexec utility and polkitd daemon in PolicyKit (aka polkit) 0.96 allows local users to gain privileges by executing a setuid program from pkexec, related to the use of the effective user ID instead of the real user ID.
Affected software
PolicyKit
Slackware Linux
Slackware Linux
How to mitigate CVE-2011-1485
Install update from vendor's website.
Links to Public Exploits and PoC-codes
- Exploit #4396 - pkexec - Race Condition Privilege Escalation (August 11, 2020)
- Exploit #4397 - PolicyKit polkit-1 < 0.101 - Privilege Escalation (August 11, 2020)
- Exploit #4378 - Linux PolicyKit - Race Condition Privilege Escalation (Metasploit) (August 11, 2020)
- Exploit #4116 - Linux PolicyKit Race Condition Privilege Escalation (August 11, 2020)
External References
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058752.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-May/059859.html
- http://secunia.com/advisories/48817
- http://security.gentoo.org/glsa/glsa-201204-06.xml
- http://securityreason.com/securityalert/8424
- http://www.debian.org/security/2011/dsa-2319
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:086
- http://www.redhat.com/support/errata/RHSA-2011-0455.html
- http://www.ubuntu.com/usn/USN-1117-1
- https://bugzilla.redhat.com/show_bug.cgi?id=692922