Description
The systrace_exit function in the systrace utility for NetBSD-current and 2.0 before April 16, 2004, and certain FreeBSD ports, does not verify the owner of the /dec/systrace connection before setting euid to 0, which allows local users to gain root privileges.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- NetBSD/FreeBSD Port Systrace 1.x - Exit Routine Access Validation Privilege Escalation EDB-24113 · local · May 11, 2004 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 20040510 Advisory 04/2004: Net(Free)BSD Systrace local root vulnerabilitiy mailing-list
- 10320 vdb-entry
- systrace-gain-privileges(16110) vdb-entry
- 11585 third-party-advisory