The LiveUpdate capability (liveupdate.sh) in Symantec AntiVirus Scan Engine 4.0 and 4.3 for Red Hat Linux allows local users to create or append to arbitrary files via a symlink attack on /tmp/LiveUpdate.log.
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
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Antivirus_scan_engine | Symantec | 4.0 (including) | 4.0 (including) |
| Antivirus_scan_engine | Symantec | 4.3 (including) | 4.3 (including) |
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://marc.info/?l=bugtraq\u0026m=107694800908164\u0026w=2
- http://www.securityfocus.com/bid/9662
- https://exchange.xforce.ibmcloud.com/vulnerabilities/15215
- http://marc.info/?l=bugtraq\u0026m=107694800908164\u0026w=2
- http://www.securityfocus.com/bid/9662
- https://exchange.xforce.ibmcloud.com/vulnerabilities/15215