CVE-2013-4262

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

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.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/132.html
• https://cwe.mitre.org/data/definitions/17.html
• https://cwe.mitre.org/data/definitions/35.html
• https://cwe.mitre.org/data/definitions/76.html

References

• http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
• https://subversion.apache.org/security/CVE-2013-4262-advisory.txt
• http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
• https://subversion.apache.org/security/CVE-2013-4262-advisory.txt