CVE-2002-0754

CVE-2002-0754 describes a privilege escalation vulnerability in Kerberos 5 su (k5su) within FreeBSD 4.4 and earlier versions, as well as Heimdal implementations. The flaw stems from k5su's reliance on the getlogin system call to verify root privileges, potentially allowing a root-initiated process to regain elevated access after intentionally dropping them. With a CVSS score of 7.2, this vulnerability is considered highly severe due to its local attack vector, low attack complexity, and complete compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.