CVE Vulnerabilities

CVE-2013-4215

Improper Link Resolution Before File Access ('Link Following')

Published: May 05, 2014 | Modified: May 06, 2014
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
4.4 MEDIUM
AV:L/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
2.1 MODERATE
AV:L/AC:L/Au:N/C:N/I:N/A:P
RedHat/V3
Ubuntu
MEDIUM

The IPXPING_COMMAND in contrib/check_ipxping.c in Nagios Plugins 1.4.16 allows local users to gain privileges via a symlink attack on /tmp/ipxping/ipxping.

Weakness

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Affected Software

Name Vendor Start Version End Version
Plugins Nagios 1.4.16 (including) 1.4.16 (including)
Nagios-plugins Ubuntu lucid *

Potential Mitigations

  • Follow the principle of least privilege when assigning access rights to entities in a software system.
  • Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.

References