Description
ZyXEL P-335WT router allows remote attackers to bypass access restrictions and conduct unauthorized operations via a UPnP request with a modified InternalClient parameter, which is not validated, as demonstrated by using AddPortMapping to forward arbitrary traffic.
References
- http://www.securityview.org/how-does-the-upnp-flaw-works.html
- zyxel-upnp-security-bypass(26710) vdb-entry
- 20184 third-party-advisory
- ADV-2006-1910 vdb-entry
- http://www.securityview.org/dutch-student-finds-a-bug-in-upnp.html