The aesEncrypt method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp 1.14.x through 1.14.11 makes it easier for context-dependent attackers to bypass the encryption protection mechanism by leveraging use of the first 16 bytes of the secret key as the initialization vector (IV).
Weakness
The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Simplesamlphp | Simplesamlphp | 1.14.0 (including) | 1.14.0 (including) |
| Simplesamlphp | Simplesamlphp | 1.14.1 (including) | 1.14.1 (including) |
| Simplesamlphp | Simplesamlphp | 1.14.2 (including) | 1.14.2 (including) |
| Simplesamlphp | Simplesamlphp | 1.14.3 (including) | 1.14.3 (including) |
| Simplesamlphp | Simplesamlphp | 1.14.4 (including) | 1.14.4 (including) |
| Simplesamlphp | Simplesamlphp | 1.14.5 (including) | 1.14.5 (including) |
| Simplesamlphp | Simplesamlphp | 1.14.6 (including) | 1.14.6 (including) |
| Simplesamlphp | Simplesamlphp | 1.14.7 (including) | 1.14.7 (including) |
| Simplesamlphp | Simplesamlphp | 1.14.8 (including) | 1.14.8 (including) |
| Simplesamlphp | Simplesamlphp | 1.14.9 (including) | 1.14.9 (including) |
| Simplesamlphp | Simplesamlphp | 1.14.10 (including) | 1.14.10 (including) |
| Simplesamlphp | Simplesamlphp | 1.14.11 (including) | 1.14.11 (including) |
| Simplesamlphp | Ubuntu | esm-apps/xenial | * |
| Simplesamlphp | Ubuntu | upstream | * |
| Simplesamlphp | Ubuntu | xenial | * |
| Simplesamlphp | Ubuntu | zesty | * |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/112.html
- https://cwe.mitre.org/data/definitions/192.html
- https://cwe.mitre.org/data/definitions/20.html