CVE-2023-6395 – Mock: privilege escalation for users that can access mock configuration

https://notcve.org/view.php?id=CVE-2023-6395

The Mock software contains a vulnerability wherein an attacker could potentially exploit privilege escalation, enabling the execution of arbitrary code with root user privileges. This weakness stems from the absence of proper sandboxing during the expansion and execution of Jinja2 templates, which may be included in certain configuration parameters. While the Mock documentation advises treating users added to the mock group as privileged, certain build systems invoking mock on behalf of users might inadvertently permit less privileged users to define configuration tags. These tags could then be passed as parameters to mock during execution, potentially leading to the utilization of Jinja2 templates for remote privilege escalation and the execution of arbitrary code as the root user on the build server. El software Mock contiene una vulnerabilidad en la que un atacante podría explotar la escalada de privilegios, permitiendo la ejecución de código arbitrario con privilegios de usuario root. • http://www.openwall.com/lists/oss-security/2024/01/16/1 http://www.openwall.com/lists/oss-security/2024/01/16/3 https://access.redhat.com/security/cve/CVE-2023-6395 https://bugzilla.redhat.com/show_bug.cgi?id=2252206 https://github.com/xsuchy/templated-dictionary/commit/0740bd0ca8d487301881541028977d120f8b8933 https://github.com/xsuchy/templated-dictionary/commit/bcd90f0dafa365575c4b101e6f5d98c4ef4e4b69 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/62SP2BJC2AFLFJJAEHPGZ3ZINTB • CWE-20: Improper Input Validation CWE-94: Improper Control of Generation of Code ('Code Injection') •