DokuWiki before 2014-05-05b, when using Active Directory for LDAP authentication, allows remote attackers to bypass authentication via a password starting with a null (0) character and a valid user name, which triggers an unauthenticated bind.
Weakness
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Dokuwiki | Dokuwiki | * | 2014-05-05a (including) |
| Dokuwiki | Ubuntu | artful | * |
| Dokuwiki | Ubuntu | lucid | * |
| Dokuwiki | Ubuntu | precise | * |
| Dokuwiki | Ubuntu | trusty | * |
| Dokuwiki | Ubuntu | utopic | * |
| Dokuwiki | Ubuntu | vivid | * |
| Dokuwiki | Ubuntu | wily | * |
| Dokuwiki | Ubuntu | yakkety | * |
| Dokuwiki | Ubuntu | zesty | * |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/114.html
- https://cwe.mitre.org/data/definitions/115.html
- https://cwe.mitre.org/data/definitions/151.html
- https://cwe.mitre.org/data/definitions/194.html
- https://cwe.mitre.org/data/definitions/22.html
- https://cwe.mitre.org/data/definitions/57.html
- https://cwe.mitre.org/data/definitions/593.html
- https://cwe.mitre.org/data/definitions/633.html
- https://cwe.mitre.org/data/definitions/650.html
- https://cwe.mitre.org/data/definitions/94.html
References
- http://advisories.mageia.org/MGASA-2014-0438.html
- http://secunia.com/advisories/61983
- http://www.debian.org/security/2014/dsa-3059
- http://www.freelists.org/post/dokuwiki/Fwd-Dokuwiki-maybe-security-issue-Null-byte-poisoning-in-LDAP-authentication
- http://www.openwall.com/lists/oss-security/2014/10/13/3
- http://www.openwall.com/lists/oss-security/2014/10/16/9
- https://github.com/splitbrain/dokuwiki/pull/868
- http://advisories.mageia.org/MGASA-2014-0438.html
- http://secunia.com/advisories/61983
- http://www.debian.org/security/2014/dsa-3059
- http://www.freelists.org/post/dokuwiki/Fwd-Dokuwiki-maybe-security-issue-Null-byte-poisoning-in-LDAP-authentication
- http://www.openwall.com/lists/oss-security/2014/10/13/3
- http://www.openwall.com/lists/oss-security/2014/10/16/9
- https://github.com/splitbrain/dokuwiki/pull/868