Symfony before 2.8.6 and 3.x before 3.0.6 allows remote attackers to bypass authentication by logging in with an empty password and valid username, 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 |
|---|---|---|---|
| Symfony | Sensiolabs | 2.8.0 (including) | 2.8.0 (including) |
| Symfony | Sensiolabs | 2.8.1 (including) | 2.8.1 (including) |
| Symfony | Sensiolabs | 2.8.2 (including) | 2.8.2 (including) |
| Symfony | Sensiolabs | 2.8.3 (including) | 2.8.3 (including) |
| Symfony | Sensiolabs | 2.8.4 (including) | 2.8.4 (including) |
| Symfony | Sensiolabs | 2.8.5 (including) | 2.8.5 (including) |
| Symfony | Sensiolabs | 3.0.0 (including) | 3.0.0 (including) |
| Symfony | Sensiolabs | 3.0.1 (including) | 3.0.1 (including) |
| Symfony | Sensiolabs | 3.0.2 (including) | 3.0.2 (including) |
| Symfony | Sensiolabs | 3.0.3 (including) | 3.0.3 (including) |
| Symfony | Sensiolabs | 3.0.4 (including) | 3.0.4 (including) |
| Symfony | Sensiolabs | 3.0.5 (including) | 3.0.5 (including) |
| Symfony | Ubuntu | artful | * |
| Symfony | Ubuntu | upstream | * |
| Symfony | Ubuntu | wily | * |
| Symfony | Ubuntu | yakkety | * |
| Symfony | 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://symfony.com/blog/cve-2016-2403-unauthorized-access-on-a-misconfigured-ldap-server-when-using-an-empty-password
- http://www.securityfocus.com/bid/96137
- https://www.debian.org/security/2018/dsa-4262
- http://symfony.com/blog/cve-2016-2403-unauthorized-access-on-a-misconfigured-ldap-server-when-using-an-empty-password
- http://www.securityfocus.com/bid/96137
- https://www.debian.org/security/2018/dsa-4262