PPTP vulnerability

A buffer overflow vulnerability has been found in the PoPToP PPTP server. The daemon is commonly run as root, therefore this can be pretty serious. A sample exploit was released for windows, and I’ve ported it to Linux (gcc). The problem on our own firewalls was mitigated because, although we have to run the crappy software to provide simple windows VPN access, we have some stack protection in our kernels.

Leave a Reply