CVE-2007-5664

db2dasrrm in the DB2 Administration Server (DAS) in IBM DB2 Universal Database 9.5 before Fix Pack 1, 9.1 before Fix Pack 4a, and 8 before FixPak 16 allows local users to overwrite arbitrary files via a symlink attack on files used for initialization.

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://labs.idefense.com/intelligence/vulnerabilities/display.php?id=688
• http://secunia.com/advisories/29784
• http://www.securityfocus.com/bid/27870
• http://www.securitytracker.com/id?1019852
• http://www.vupen.com/english/advisories/2008/1237/references
• https://exchange.xforce.ibmcloud.com/vulnerabilities/41848