Software Engineering Institute

DameWare Mini Remote Control is a lightweight remote control program intended primarily for administrators and help desks to manage desktop systems.

A buffer overflow vulnerability has been discovered in versions of DameWare Mini Remote Control prior to 4.9.0. A remote attacker can send a specially crafted packet to the DameWare Mini Remote Control (default port 6129/TCP) to mimic a client and exploit this vulnerability. Since the buffer overflow occurs in a section of the code used to handle authentication, a remote unauthenticated attacker can execute arbitrary code on a system.

The CERT/CC has seen reports of active exploitation of a similar vulnerability, CERT VU#909678.

A remote, unauthenticated attacker can exploit this vulnerability to execute arbitrary code.

Apply an update
This issue is addressed in version 4.9.0 (alternate link).

Workarounds and mitigation
Block access to the DameWare Mini Remote Control Service port (default 6129/TCP) at the network perimeter. This will not mitigate attacks from within the firewall perimeter, but may mitigate attacks from outside your network.