Home/CVE/systemd does not properly use D-Bus for communication with a polkit authority, which allows local users to bypass intend
CVE

CVE-2013-4327

systemd does not properly use D-Bus for communication with a polkit authority, which allows local users to bypass intend

systemd does not properly use D-Bus for communication with a polkit authority, which allows local users to bypass intended access restrictions by leveraging a PolkitUnixProcess PolkitSubject race condition via a (1) setuid process or (2) pkexec process, a related issue to CVE-2013-4288.

MEDIUM · CVSS 6.9 EPSS 0.00032
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
▤

Affected Products & Versions

3
systemd project systemd<= 207
debian linuxall versions
canonical ubuntu linuxall versions
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumSystemd Service Creation
▣

Scoring & Timeline

6.9
MEDIUM · CVSS v2 (legacy) · secalert@redhat.com
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:L/AC:M/Au:N/C:C/I:C/A:C
Published to NVD03 Oct 2013 · 09:55 PM
⚑

Vendor Advisories

1
usnUSN-1961-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.debian.org/security/2013/dsa-2777Third Party Advisory
http://www.openwall.com/lists/oss-security/2013/09/18/6Mailing ListThird Party Advisory
http://www.ubuntu.com/usn/USN-1961-1Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1006680Issue TrackingPatchThird Party Advisory
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