CVE-2008-5704

src/unit_test.c in gpsdrive (aka gpsdrive-scripts) 2.10~pre4 might allow local users to overwrite arbitrary files via a symlink attack on the /tmp/gpsdrive-unit-test/proc temporary file, a different vector than CVE-2008-4959 and CVE-2008-5380.

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://bugs.debian.org/cgi-bin/bugreport.cgi?bug=508597
• http://openwall.com/lists/oss-security/2008/12/17/15