flamethrower in flamethrower 0.1.8 allows local users to overwrite arbitrary files via a symlink attack on a /tmp/multicast.tar.##### temporary file.
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 |
|---|---|---|---|
| Flamethrower | Dann_frazier | 0.1.8 (including) | 0.1.8 (including) |
| Flamethrower | Ubuntu | dapper | * |
| Flamethrower | Ubuntu | gutsy | * |
| Flamethrower | Ubuntu | hardy | * |
| Flamethrower | Ubuntu | intrepid | * |
| Flamethrower | Ubuntu | upstream | * |
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=506350
- http://lists.debian.org/debian-devel/2008/08/msg00285.html
- http://secunia.com/advisories/32891
- http://secunia.com/advisories/32961
- http://www.debian.org/security/2008/dsa-1676
- http://www.securityfocus.com/bid/32386
- https://exchange.xforce.ibmcloud.com/vulnerabilities/46717
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=506350
- http://lists.debian.org/debian-devel/2008/08/msg00285.html
- http://secunia.com/advisories/32891
- http://secunia.com/advisories/32961
- http://www.debian.org/security/2008/dsa-1676
- http://www.securityfocus.com/bid/32386
- https://exchange.xforce.ibmcloud.com/vulnerabilities/46717