ID |
CVE-2019-6133
|
Summary |
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. |
References |
|
Vulnerable Configurations |
-
cpe:2.3:a:polkit_project:polkit:0.115:*:*:*:*:*:*:*
cpe:2.3:a:polkit_project:polkit:0.115:*:*:*:*:*:*:*
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cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
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cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
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cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
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cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
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cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
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cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
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cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
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cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
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cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
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cpe:2.3:o:redhat:enterprise_linux_server_aus:6.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:6.6:*:*:*:*:*:*:*
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cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
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cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
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cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
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cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
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cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
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cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
|
CVSS |
Base: | 4.4 (as of 24-08-2020 - 17:37) |
Impact: | |
Exploitability: | |
|
CWE |
CWE-362 |
CAPEC |
-
Leveraging Race Conditions
The adversary targets a race condition occurring when multiple processes access and manipulate the same resource concurrently, and the outcome of the execution depends on the particular order in which the access takes place. The adversary can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance, a race condition can occur while accessing a file: the adversary can trick the system by replacing the original file with his version and cause the system to read the malicious file.
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Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. A typical example is file access. The adversary can leverage a file access race condition by "running the race", meaning that they would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the adversary could replace or modify the file, causing the application to behave unexpectedly.
|
Access |
Vector | Complexity | Authentication |
LOCAL |
MEDIUM |
NONE |
|
Impact |
Confidentiality | Integrity | Availability |
PARTIAL |
PARTIAL |
PARTIAL |
|
cvss-vector
via4
|
AV:L/AC:M/Au:N/C:P/I:P/A:P
|
redhat
via4
|
advisories | bugzilla | id | 1664212 | title | CVE-2019-6133 polkit: Temporary auth hijacking via PID reuse and non-atomic fork |
| oval | OR | comment | Red Hat Enterprise Linux must be installed | oval | oval:com.redhat.rhba:tst:20070304026 |
AND | comment | Red Hat Enterprise Linux 7 is installed | oval | oval:com.redhat.rhba:tst:20150364027 |
OR | AND | comment | polkit is earlier than 0:0.112-18.el7_6.1 | oval | oval:com.redhat.rhsa:tst:20190230001 |
comment | polkit is signed with Red Hat redhatrelease2 key | oval | oval:com.redhat.rhsa:tst:20110455002 |
|
AND | comment | polkit-devel is earlier than 0:0.112-18.el7_6.1 | oval | oval:com.redhat.rhsa:tst:20190230003 |
comment | polkit-devel is signed with Red Hat redhatrelease2 key | oval | oval:com.redhat.rhsa:tst:20110455006 |
|
AND | comment | polkit-docs is earlier than 0:0.112-18.el7_6.1 | oval | oval:com.redhat.rhsa:tst:20190230005 |
comment | polkit-docs is signed with Red Hat redhatrelease2 key | oval | oval:com.redhat.rhsa:tst:20110455008 |
|
|
|
|
| rhsa | id | RHSA-2019:0230 | released | 2019-01-31 | severity | Important | title | RHSA-2019:0230: polkit security update (Important) |
|
bugzilla | id | 1664212 | title | CVE-2019-6133 polkit: Temporary auth hijacking via PID reuse and non-atomic fork |
| oval | OR | comment | Red Hat Enterprise Linux must be installed | oval | oval:com.redhat.rhba:tst:20070304026 |
AND | comment | Red Hat Enterprise Linux 6 is installed | oval | oval:com.redhat.rhba:tst:20111656003 |
OR | AND | comment | polkit is earlier than 0:0.96-11.el6_10.1 | oval | oval:com.redhat.rhsa:tst:20190420001 |
comment | polkit is signed with Red Hat redhatrelease2 key | oval | oval:com.redhat.rhsa:tst:20110455002 |
|
AND | comment | polkit-desktop-policy is earlier than 0:0.96-11.el6_10.1 | oval | oval:com.redhat.rhsa:tst:20190420003 |
comment | polkit-desktop-policy is signed with Red Hat redhatrelease2 key | oval | oval:com.redhat.rhsa:tst:20110455004 |
|
AND | comment | polkit-devel is earlier than 0:0.96-11.el6_10.1 | oval | oval:com.redhat.rhsa:tst:20190420005 |
comment | polkit-devel is signed with Red Hat redhatrelease2 key | oval | oval:com.redhat.rhsa:tst:20110455006 |
|
AND | comment | polkit-docs is earlier than 0:0.96-11.el6_10.1 | oval | oval:com.redhat.rhsa:tst:20190420007 |
comment | polkit-docs is signed with Red Hat redhatrelease2 key | oval | oval:com.redhat.rhsa:tst:20110455008 |
|
|
|
|
| rhsa | id | RHSA-2019:0420 | released | 2019-02-26 | severity | Important | title | RHSA-2019:0420: polkit security update (Important) |
|
| rpms | - polkit-0:0.112-18.el7_6.1
- polkit-debuginfo-0:0.112-18.el7_6.1
- polkit-devel-0:0.112-18.el7_6.1
- polkit-docs-0:0.112-18.el7_6.1
- polkit-0:0.96-11.el6_10.1
- polkit-debuginfo-0:0.96-11.el6_10.1
- polkit-desktop-policy-0:0.96-11.el6_10.1
- polkit-devel-0:0.96-11.el6_10.1
- polkit-docs-0:0.96-11.el6_10.1
- polkit-0:0.96-7.el6_6.1
- polkit-debuginfo-0:0.96-7.el6_6.1
- polkit-desktop-policy-0:0.96-7.el6_6.1
- polkit-devel-0:0.96-7.el6_6.1
- polkit-docs-0:0.96-7.el6_6.1
- polkit-0:0.112-12.el7_4.1
- polkit-debuginfo-0:0.112-12.el7_4.1
- polkit-devel-0:0.112-12.el7_4.1
- polkit-docs-0:0.112-12.el7_4.1
- polkit-0:0.112-14.el7_5.1
- polkit-debuginfo-0:0.112-14.el7_5.1
- polkit-devel-0:0.112-14.el7_5.1
- polkit-docs-0:0.112-14.el7_5.1
|
|
refmap
via4
|
bid | 106537 | confirm | https://support.f5.com/csp/article/K22715344 | misc | | mlist | - [debian-lts-announce] 20190128 [SECURITY] [DLA 1644-1] policykit-1 security update
- [debian-lts-announce] 20190528 [SECURITY] [DLA 1799-1] linux security update
- [debian-lts-announce] 20190528 [SECURITY] [DLA 1799-2] linux security update
| suse | openSUSE-SU-2019:1914 | ubuntu | - USN-3901-1
- USN-3901-2
- USN-3903-1
- USN-3903-2
- USN-3908-1
- USN-3908-2
- USN-3910-1
- USN-3910-2
- USN-3934-1
- USN-3934-2
|
|
Last major update |
24-08-2020 - 17:37 |
Published |
11-01-2019 - 14:29 |
Last modified |
24-08-2020 - 17:37 |