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Internet Security Systems Internet Scanner Buffer Overflow in Parsing Web Responses May Let Remote Users Execute Arbitrary Code on the Scanner
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SecurityTracker Alert ID: 1005251 |
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SecurityTracker URL: http://securitytracker.com/id/1005251
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CVE Reference:
GENERIC-MAP-NOMATCH
(Links to External Site)
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Date: Sep 18 2002
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Impact:
Denial of service via network, Execution of arbitrary code via network, Root access via network, User access via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 6.2.1
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Description:
A vulnerability was reported in the Internet Security Systems "Internet Scanner". A remote user could cause arbitrary code to be executed by the scanner.
It is reported that there is a text parsing flaw within Internet Scanner that can be triggered by improperly formatted HTTP response messages, possibly resulting in a buffer overflow.
If a user invokes Internet Scanner to scan a malicious host, the remote user (i.e., malicious host) could cause the scanner to crash or could cause arbitrary code to be executed on the scanner.
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Impact:
A remote user could cause the scanner to crash or could cause the scanner to execute arbitrary code.
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Solution:
The vendor has released a fixed version (X-Press Update 6.17), available at:
http://www.iss.net/download
The XPU can also be downloaded and installed using the Internet Scanner X-Press Update Installer.
The XPU also includes a check (MalformedHttpStatusResponse) to identify systems with nonstandard HTTP responses.
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Vendor URL: bvlive01.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=21165 (Links to External Site)
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Cause:
Boundary error
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Underlying OS:
Windows (NT), Windows (2000)
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Message History:
None.
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Source Message Contents
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Date: Wed, 18 Sep 2002 11:55:09 -0400 (EDT)
Subject: ISS Security Brief: Flaw in Internet Scanner Parsing Mechanism
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TO UNSUBSCRIBE: email "unsubscribe alert" in the body of your message to
majordomo@iss.net Contact alert-owner@iss.net for help with any problems!
---------------------------------------------------------------------------
-----BEGIN PGP SIGNED MESSAGE-----
Internet Security Systems Security Brief
September 18, 2002
Flaw in Internet Scanner Parsing Mechanism
Synopsis:
ISS X-Force has learned of a text parsing flaw within Internet Scanner.
Internet Scanner incorrectly parses improperly formatted Web response
messages. This flaw may lead to a buffer overflow within Internet Scanner.
Impact:
The Internet Scanner response parsing flaw may lead to a denial of service
(DoS) attack or remote command execution on the vulnerable Internet Scanner
server. This attack can only be launched if an attacker configures a
non-standard condition on a computer within the licensed address range. The
attack cannot be launched unless the attacker runs Internet Scanner or
waits for Internet Scanner to be launched by an authorized third-party.
Affected Versions:
Internet Scanner 6.2.1 for Windows NT and Windows 2000
For the complete ISS X-Force Security Advisory, please visit:
http://bvlive01.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=21165
______
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) 2002 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 xforce@iss.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
xforce@iss.net of Internet Security Systems, Inc.
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