ArchLinuxASA-201901-2[ASA-201901-2] polkit: privilege escalation
9 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
0.006 Low
EPSS
Percentile
78.5%
Arch Linux Security Advisory ASA-201901-2
Severity: High
Date : 2019-01-08
CVE-ID : CVE-2018-19788
Package : polkit
Type : privilege escalation
Remote : No
Link : https://security.archlinux.org/AVG-828
Summary
The package polkit before version 0.115+24+g5230646-1 is vulnerable to
privilege escalation.
Resolution
Upgrade to 0.115+24+g5230646-1.
pacman -Syu “polkit>=0.115+24+g5230646-1”
The problem has been fixed upstream but no release is available yet.
Workaround
None.
Description
A security issue has been found in polkit <= 0.115, where an
unprivileged user with a UID > INT_MAX can successfully execute any
systemctl command.
Impact
A local, unprivileged user whose UID is larger than INT_MAX can
escalate privileges.
References
https://seclists.org/oss-sec/2018/q4/198
https://gitlab.freedesktop.org/polkit/polkit/issues/74
https://gitlab.freedesktop.org/polkit/polkit/commit/2cb40c4d5feeaa09325522bd7d97910f1b59e379
https://security.archlinux.org/CVE-2018-19788
Related
9 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
0.006 Low
EPSS
Percentile
78.5%