Chamilo is a learning management system. Prior to version 1.11.30, Chamilo is vulnerable to deserialization of untrusted data in /plugin/vchamilo/views/import.php via POST configuration_file; POST course_path; POST home_path parameters. This issue has been patched in version 1.11.30.
Weakness
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
Potential Mitigations
- Make fields transient to protect them from deserialization.
- An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.
Related Attack Patterns
References
- https://github.com/chamilo/chamilo-lms/commit/07f7954f2dd18c4f5a307b2a6fa802d9ce36b827
- https://github.com/chamilo/chamilo-lms/commit/89c67e6630852cf94d288499e2cd6f6a06f9c6f1
- https://github.com/chamilo/chamilo-lms/commit/8bd86913a89fec084053e2c2916df19f15d03d95
- https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.30
- https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-jgxc-96j5-8rrr