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Category:   Device (Intrusion Detection)  >   IBM Proventia Vendors:   Internet Security Systems
ISS Proventia SMB Parsing Error Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1009224
SecurityTracker URL:  http://securitytracker.com/id/1009224
CVE Reference:   CVE-2004-0193   (Links to External Site)
Updated:  Mar 4 2004
Original Entry Date:  Feb 26 2004
Impact:   Execution of arbitrary code via network, Root access via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): Proventia A Series XPU 20.15 through 22.9; Proventia G Series XPU 22.3 through 22.9; Proventia M Series XPU 1.3 through 1.7
Description:   A vulnerability was reported in ISS Proventia in the parsing of Server Message Block (SMB) packets. A remote user can execute arbitrary code on the target system.

The flaw reportedly resides in the ISS Protocol Analysis Module (PAM) component of several ISS products, where the size of certain protocol fields is not properly validated.

A remote user can send a specially crafted SMB packet to cause the target system to execute arbitrary code. When the packet is reassembled for analysis, a heap-based overflow may occur. To trigger the overflow, a remote user can reportedly issue a "SMB Session Setup AndX request" packet with an AccountName parameter with a string of 300 bytes or greater.

Although the vendor report does not credit anyone, eEye Digital Security discovered the flaw. The eEye advisory is available at:

http://www.eeye.com/html/Research/Advisories/AD20040226.html

Impact:   A remote user can execute arbitrary code with the privileges of the target process.
Solution:   The vendor has issued a fix, available at:

http://www.iss.net/download/

Vendor URL:  www.iss.net (Links to External Site)
Cause:   Boundary error

Message History:   This archive entry has one or more follow-up message(s) listed below.
Feb 27 2004 (eEye Issues Advisory) ISS Proventia SMB Parsing Error Lets Remote Users Execute Arbitrary Code
eEye Digital Security released their advisory describing the flaw.



 Source Message Contents

Subject:  ISS Security Brief: Vulnerability in SMB Parsing in ISS Products


-----BEGIN PGP SIGNED MESSAGE-----

Internet Security Systems Security Brief
February 26, 2004

Vulnerability in SMB Parsing in ISS Products	

Synopsis:

A vulnerability was discovered in the SMB (Server Message Block) protocol
parsing routines of the ISS Protocol Analysis Module (PAM) component found
in some ISS products. The flaw relates to incorrect parsing of the SMB
protocol, which may lead to a heap overflow condition.

Affected Versions:

RealSecure Network 7.0, XPU 20.15 through 22.9
Real Secure Server Sensor 7.0 XPU 20.16 through 22.9
Proventia A Series XPU 20.15 through 22.9
Proventia G Series XPU 22.3 through 22.9
Proventia M Series XPU 1.3 through 1.7 
RealSecure Desktop 7.0 eba through ebh
RealSecure Desktop 3.6 ebr through ecb
RealSecure Guard 3.6 ebr through ecb
RealSecure Sentry 3.6 ebr through ecb
BlackICE PC Protection 3.6 cbr through ccb
BlackICE Server Protection 3.6 cbr through ccb

All updates are available from the ISS Download Center:
http://www.iss.net/download/

Impact:

The vulnerability is caused by incorrect parsing of SMB information. The
flaw may be exploited due to insufficient size checks of certain protocol
fields. ISS X-Force believes that exploitation of this issue is possible.
In order to cause memory corruption, it is necessary to establish a
legitimate SMB connection to a server. This may be a mitigating factor in
many network configurations. Externally facing networks that do not allow
SMB connections are not vulnerable to attack.

For complete ISS X-Force Security Alert, please visit: 
http://xforce.iss.net/xforce/alerts/id/165

______ 



About Internet Security Systems (ISS) 
Founded in 1994, Internet Security Systems (ISS) (Nasdaq: ISSX) is a 
pioneer and world leader in software and services that protect critical 
online resources from an ever-changing spectrum of threats and misuse. 
Internet Security Systems is headquartered in Atlanta, GA, with 
additional operations throughout the Americas, Asia, Australia, Europe 
and the Middle East. 



Copyright (c) 2003 Internet Security Systems, Inc. All rights reserved 
worldwide. 



Permission is hereby granted for the electronic redistribution of this 
document. It is not to be edited or altered in any way without the 
express written consent of the Internet Security Systems X-Force. If 
you wish to reprint the whole or any part of this document in any other 
medium excluding electronic media, please email xforceiss.net for 
permission. 



Disclaimer: The information within this paper may change without notice. 
Use of this information constitutes acceptance for use in an AS IS 
condition. There are NO warranties, implied or otherwise, with regard to 
this information or its use. Any use of this information is at the 
user's risk. In no event shall the author/distributor (Internet Security 
Systems X-Force) be held liable for any damages whatsoever arising out 
of or in connection with the use or spread of this information. 



X-Force PGP Key available on MIT's PGP key server and PGP.com's key 
server, as well as at http://www.iss.net/security_center/sensitive.php 
Please send suggestions, updates, and comments to: X-Force 
xforceiss.net of Internet Security Systems, Inc. 




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_______________________________________________
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To contact the ISS Alert List Administrator, send email to mod-alert@iss.net

The ISS Alert mailing list is hosted and managed by Internet Security Systems, 6303 Barfield Road, Atlanta, Georgia, USA 30328.

 
 


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