CVE-2013-1495

asr in Oracle Auto Service Request in Oracle Support Tools before 4.3.2 allows local users to modify arbitrary files via a symlink attack on a predictable filename in /tmp.

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://seclists.org/fulldisclosure/2013/Feb/159
• http://www.mandriva.com/security/advisories?name=MDVSA-2013:150
• http://www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.html