Vulnerability CVE-2019-6133
Published: 2019-01-11

Description:
In PolicyKit (aka polkit) 0.115, the "start time" protection mechanism can be bypassed because fork() is not atomic, and therefore authorization decisions are improperly cached. This is related to lack of uid checking in polkitbackend/polkitbackendinteractiveauthority.c.

Type:

CWE-284

 (Improper Access Control)

CVSS2 => (AV:L/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.4/10
6.4/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Redhat -> Enterprise linux desktop 
Redhat -> Enterprise linux server 
Redhat -> Enterprise linux server aus 
Redhat -> Enterprise linux server eus 
Redhat -> Enterprise linux server tus 
Redhat -> Enterprise linux workstation 
Polkit project -> Polkit 
Debian -> Debian linux 
Canonical -> Ubuntu linux 

 References:
http://www.securityfocus.com/bid/106537
https://access.redhat.com/errata/RHSA-2019:0230
https://access.redhat.com/errata/RHSA-2019:0420
https://access.redhat.com/errata/RHSA-2019:0832
https://bugs.chromium.org/p/project-zero/issues/detail?id=1692
https://git.kernel.org/linus/7b55851367136b1efd84d98fea81ba57a98304cf
https://gitlab.freedesktop.org/polkit/polkit/commit/c898fdf4b1aafaa04f8ada9d73d77c8bb76e2f81
https://gitlab.freedesktop.org/polkit/polkit/merge_requests/19
https://lists.debian.org/debian-lts-announce/2019/01/msg00021.html
https://lists.debian.org/debian-lts-announce/2019/05/msg00041.html
https://lists.debian.org/debian-lts-announce/2019/05/msg00042.html
https://support.f5.com/csp/article/K22715344
https://usn.ubuntu.com/3901-1/
https://usn.ubuntu.com/3901-2/
https://usn.ubuntu.com/3903-1/
https://usn.ubuntu.com/3903-2/
https://usn.ubuntu.com/3908-1/
https://usn.ubuntu.com/3908-2/
https://usn.ubuntu.com/3910-1/
https://usn.ubuntu.com/3910-2/
https://usn.ubuntu.com/3934-1/
Copyright 2024, cxsecurity.com

 

Back to Top