Description
The server daemons in Kannel 1.5.0 and earlier create a PID file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for PID file modification before a root script executes a "kill `cat /pathname`" command, as demonstrated by bearerbox.
References (1)
Core 1
Core References
Exploit, Vendor Advisory x_refsource_misc
https://redmine.kannel.org/issues/771
Scores
CVSS v3
7.8
EPSS
0.0041
EPSS Percentile
32.3%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-665
Status
published
Products (1)
kannel/kannel
< 1.5.0
Published
Sep 20, 2017
Tracked Since
Feb 18, 2026