The rtsol(8) and rtsold(8) programs do not validate the domain search list options provided in router advertisement messages; the option body is passed to resolvconf(8) unmodified. resolvconf(8) is a

Description

The rtsol(8) and rtsold(8) programs do not validate the domain search list options provided in router advertisement messages; the option body is passed to resolvconf(8) unmodified. resolvconf(8) is a shell script which does not validate its input. A lack of quoting meant that shell commands pass as input to resolvconf(8) may be executed.

Affected Products

References

• https://security.freebsd.org/advisories/FreeBSD-SA-25:12.rtsold.asc(Vendor Advisory)
• https://sploitus.com/exploit?id=MSF:EXPLOIT-FREEBSD-MISC-RTSOLD_DNSSL_CMDINJECT-(Exploit, Third Party Advisory)