(1) contrib/gforge-3.0-cronjobs.patch, (2) cronjobs/homedirs.php, (3) deb-specific/fileforge.pl, (4) deb-specific/group_dump_update.pl, (5) deb-specific/ssh_dump_update.pl, (6) deb-specific/user_dump_update.pl, (7) plugins/scmbzr/common/BzrPlugin.class.php, (8) plugins/scmcvs/common/CVSPlugin.class.php, (9) plugins/scmcvs/cronjobs/cvs.php, (10) plugins/scmcvs/cronjobs/ssh_create.php, (11) plugins/scmgit/common/GitPlugin.class.php, (12) plugins/scmsvn/common/SVNPlugin.class.php, (13) plugins/wiki/cronjobs/create_groups.php, (14) utils/cvs1/cvscreate.sh, and (15) utils/include.pl in FusionForge 5.0, 5.1, and 5.2 allows local users to change arbitrary file permissions, obtain sensitive information, and have other unspecified impacts via a (1) symlink or (2) hard link attack on certain files.
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 |
|---|---|---|---|
| Fusionforge | Fusionforge | 5.0 (including) | 5.0 (including) |
| Fusionforge | Fusionforge | 5.1 (including) | 5.1 (including) |
| Fusionforge | Fusionforge | 5.2 (including) | 5.2 (including) |
| Fusionforge | Ubuntu | oneiric | * |
| Fusionforge | Ubuntu | precise | * |
| Fusionforge | Ubuntu | quantal | * |
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://osvdb.org/90605
- http://secunia.com/advisories/52318
- http://secunia.com/advisories/52371
- http://www.debian.org/security/2013/dsa-2633
- http://www.openwall.com/lists/oss-security/2013/02/25/5
- http://www.securityfocus.com/bid/58143
- https://fusionforge.org/plugins/scmgit/cgi-bin/gitweb.cgi?p=fusionforge/fusionforge.git%3Ba=commitdiff%3Bh=0cc51b3aca51fa915a35195fdf729bcdb903f2af
- https://fusionforge.org/plugins/scmgit/cgi-bin/gitweb.cgi?p=fusionforge/fusionforge.git%3Ba=commitdiff%3Bh=1fc730b97c797e03b89cd37823ab345d35286cf4
- https://fusionforge.org/plugins/scmgit/cgi-bin/gitweb.cgi?p=fusionforge/fusionforge.git%3Ba=commitdiff%3Bh=9937b9d94ab60ff67fe249c1b9a6c8e3fc1778ba
- http://osvdb.org/90605
- http://secunia.com/advisories/52318
- http://secunia.com/advisories/52371
- http://www.debian.org/security/2013/dsa-2633
- http://www.openwall.com/lists/oss-security/2013/02/25/5
- http://www.securityfocus.com/bid/58143
- https://fusionforge.org/plugins/scmgit/cgi-bin/gitweb.cgi?p=fusionforge/fusionforge.git%3Ba=commitdiff%3Bh=0cc51b3aca51fa915a35195fdf729bcdb903f2af
- https://fusionforge.org/plugins/scmgit/cgi-bin/gitweb.cgi?p=fusionforge/fusionforge.git%3Ba=commitdiff%3Bh=1fc730b97c797e03b89cd37823ab345d35286cf4
- https://fusionforge.org/plugins/scmgit/cgi-bin/gitweb.cgi?p=fusionforge/fusionforge.git%3Ba=commitdiff%3Bh=9937b9d94ab60ff67fe249c1b9a6c8e3fc1778ba