full-disclosure - Multiple vulnerabilities in SAPlpd 6.28

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Message-Id: <20080204223259.9b364f1d.aluigi@autistici.org>
Date: Mon, 4 Feb 2008 22:32:59 +0100
From: Luigi Auriemma <aluigi@...istici.org>
To: bugtraq@...urityfocus.com, bugs@...uritytracker.com,
	news@...uriteam.com, full-disclosure@...ts.grok.org.uk, vuln@...unia.com,
	packet@...ketstormsecurity.org
Subject: Multiple vulnerabilities in SAPlpd 6.28


#######################################################################

                             Luigi Auriemma

Application:  SAPlpd
              http://www.sap.com
Versions:     <= 6.28 (included in SAP GUI 7.10)
Platforms:    Windows
Bugs:         various vulnerabilities
Exploitation: remote
Date:         04 Feb 2008
Author:       Luigi Auriemma
              e-mail: aluigi@...istici.org
              web:    aluigi.org


#######################################################################


1) Introduction
2) Bugs
3) The Code
4) Fix


#######################################################################

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


SAPlpd is a small and very old (2001) line printer daemon for Windows
which is included in the SAP GUI package.


#######################################################################

=======
2) Bugs
=======


The daemon is affected by various vulnerabilities which, for brevity,
I have decided to list through the lpd commands (in hex) accepted by
the program:

commands    type of bug
01 31       memcpy
02 32       memcpy + sprintf "Receive job for printer %s (berkley protocol)\n"
03 04 33 34 sprintf "QUERY = %s\n" + multiple strcpy
05 35       multiple strcpy
53          server termination


#######################################################################

===========
3) The Code
===========


http://aluigi.org/poc/saplpdz.zip


#######################################################################

======
4) Fix
======


Vendor contacted, a patch will be released soon.


#######################################################################


--- 
Luigi Auriemma
http://aluigi.org

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