CVE-2004-1031

CVE-2004-1031 describes a local privilege escalation vulnerability in Fcron versions 2.0.1, 2.9.4, and potentially earlier. An attacker can bypass access restrictions by starting a suid process and manipulating the fcronsighup configuration to point to a root-owned, user-modifiable /proc entry, such as /proc/self/cmdline or /proc/self/environ. This vulnerability carries a CVSS score of 7.2, indicating high severity with local access, low attack complexity, and complete confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.