Cisco IBM Director agent does not properly handle arbitrary TCP packets to port 14247/tcp.
Cisco voice products (e.g. CallManager, IP Interactive Voice Response, IP Call Center Express) that run on IBM servers install IBM Director agent to provide administrative management. There is a flaw in the way the IBM Director agent (twgipc.exe) handles arbitrary TCP packets to port 14247/tcp. A remote attacker could cause a denial-of-service condition by sending arbitrary TCP packets to the IBM Director agent on port 14247/tcp. This vulnerability could be exploited by port scanning an affected system.
A remote attacker could cause the IBM Director Agent to consume 100% of the CPU until the server is rebooted.
Quoting from Cisco's Advisory:
Apply Cisco Repair Script
2. The repair script secures the Director agent such that even if port 14247 is reenabled, the Director agent still would not accept connections from any Director Server.
This was reported by the Cisco Systems Product Security Incident Response Team (PSIRT).
This document was written by Damon Morda.
|Date First Published:||2004-01-22|
|Date Last Updated:||2004-01-23 20:39 UTC|