This vulnerability allows remote attackers to bypass authentication on affected installations of Trend Micro IM Security. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the web console, which listens on TCP port 16373 by default. The issue results from the use of guessable session tokens. An attacker can leverage this vulnerability to bypass authentication on the system.
Trend Micro has issued an update to correct this vulnerability. More details can be found at: