CVE-2005-3349

GNU Gnump3d before 2.9.8 allows local users to modify or delete arbitrary files via a symlink attack on the index.lok temporary file.

Weakness

The software 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://secunia.com/advisories/17646
• http://secunia.com/advisories/17647
• http://secunia.com/advisories/17656
• http://www.debian.org/security/2005/dsa-901
• http://www.gentoo.org/security/en/glsa/glsa-200511-16.xml
• http://www.gnu.org/software/gnump3d/attacks.html#temporary-files
• http://www.gnu.org/software/gnump3d/ChangeLog
• http://www.novell.com/linux/security/advisories/2005_28_sr.html
• http://www.securityfocus.com/bid/15497
• http://www.vupen.com/english/advisories/2005/2489