CVE Vulnerabilities

CVE-2013-4262

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

Published: Jul 28, 2014 | Modified: Oct 18, 2016
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
2.4 LOW
AV:L/AC:H/Au:S/C:N/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

svnwcsub.py in Subversion 1.8.0 before 1.8.3, when using the –pidfile option and running in foreground mode, allows local users to gain privileges via a symlink attack on the pid file. NOTE: this issue was SPLIT due to different affected versions (ADT3). The irkerbridge.py issue is covered by CVE-2013-7393.

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
Subversion Apache 1.8.2 1.8.2
Subversion Apache 1.8.0 1.8.0
Subversion Apache 1.8.1 1.8.1

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