w00giving 99 -14-

Local / Remote GET Buffer Overflow Vulnerability in ZBServer 1.5 Pro Edition
for Win98/NT

USSR Advisory Code:   USSR-99024

Release Date:
December 23, 1999

Systems Affected: ZBServer 1.5 Pro Edition for Win98/NT and possibly others
versions.

About The Software:

ZBServer Pro Edition is a full-featured Internet/Intranet server software
package that includes HTTP (web), Gopher, FTP and Chat Services.
Fast, inexpensive and easy-to-use, ZBServer Pro is small enough to run in the
background of your Windows 95 or NT computer to provide users with
full or restricted access to files, graphics, sounds or movies.
ZBServer Pro can provide organizations of all sizes enterprise-wide web
service to internal and external TCP/IP network users

THE PROBLEM

UssrLabs found a Local / Remote Buffer overflow, The code that handles GET
commands has an unchecked buffer that will allow arbitrary code to be executed if it is overflowed.


Do you do the w00w00?

This advisory also acts as part of w00giving. This is another contribution
to w00giving for all you w00nderful people out there. You do know what
w00giving is don't you? http://www.w00w00.org/advisories.html

Binary or source for this Exploit:

http://www.ussrback.com/

Vendor Status:
i email the vendor, and i dont have a responce :(

Vendor   Url: http://www.zbserver.com/
Program Url: http://www.zbsoft.com/zbserver/index.htm

Credit: USSRLABS

SOLUTION
Noting yet.

Greetings:
Eeye, Attrition, w00w00, beavuh, Rhino9, ADM, L0pht, HNN, Technotronic and
Wiretrip.

u n d e r g r o u n d  s e c u r i t y  s y s t e m s  r e s e a r c h
http://www.ussrback.com