========================================================================== Ubuntu Security Notice USN-6913-2 July 31, 2024
php-cas vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 LTS Summary: phpCAS was vulnerable to an authentication bypass. Software Description: - php-cas: Central Authentication Service client library in php Details: USN-6913-1 fixed CVE-2022-39369 for Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. This update provides the corresponding fix for Ubuntu 16.04 LTS. Original advisory details: Filip Hejsek discovered that phpCAS was using HTTP headers to determine the service URL used to validate tickets. A remote attacker could possibly use this issue to gain access to a victim's account on a vulnerable CASified service. This security update introduces an incompatible API change. After applying this update, third party applications need to be modified to pass in an additional service base URL argument when constructing the client class. For more information please refer to the section "Upgrading 1.5.0 -> 1.6.0" of the phpCAS upgrading document: https://github.com/apereo/phpCAS/blob/master/docs/Upgrading Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS php-cas 1.3.3-2ubuntu1+esm1 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-6913-2 https://ubuntu.com/security/notices/USN-6913-1 CVE-2022-39369
OpenPGP_0x703AAD91046CD76E.asc
Description: OpenPGP public key
OpenPGP_signature.asc
Description: OpenPGP digital signature
