CVEvulnerability

CVE-2017-13649

5.5 MEDIUM Published 2017-08-23 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2017-08-23
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
5.5 MEDIUM — CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
2.1 LOW — AV:L/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-665

Description

UnrealIRCd 4.0.13 and earlier creates 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. NOTE: the vendor indicates that there is no common or recommended scenario in which a root script would execute this kill command.

Affected configurations

• unrealircd unrealircd (<= 4.0.13)

Related

Weakness · CWE (1)

  • CWE-665 Improper Initialization weakness

References