Description
FreeBSD 6.3, 6.4, 7.1, and 7.2 does not enforce permissions on the SIOCSIFINFO_IN6 IOCTL, which allows local users to modify or disable IPv6 network interfaces, as demonstrated by modifying the MTU.
References
- 35285 vdb-entry
- freebsd-siocsifinfo-security-bypass(51044) vdb-entry
- 1022367 vdb-entry
- 35410 third-party-advisory
- FreeBSD-SA-09:10 vendor-advisory