07 April 2008
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AUSCERT External Security Bulletin Redistribution
ESB-2008.0353 -- [Win]
Computer Associates Alert Notification Service Multiple RPC
Buffer Overflow Vulnerabilities
7 April 2008
AusCERT Security Bulletin Summary
Product: Computer Associates Alert Notification Server
Operating System: Windows
Impact: Administrator Compromise
CVE Names: CVE-2007-4620
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iDefense Security Advisory 04.03.08
Apr 03, 2008
Computer Associates Alert Notification Server is used by several CA
products, including eTrust Integrated Threat Management, to provide
notifications to console users.
Remote exploitation of multiple buffer overflow vulnerabilities in
Computer Associates International Inc.'s Alert Notification Service may
allow an authenticated attacker to execute arbitrary code with SYSTEM
The Alert Service is a component of multiple Computer Associates'
products. It is used to provide status updates and notifications
regarding various system events. It implements an RPC interface with
Multiple buffer overflows exist in the handlers for various opcodes. In
each case, unsafe library functions are used to copy attacker supplied
data into fixed size stack buffers. By making specially crafted
requests, attackers are able to cause an exploitable buffer overflow.
Exploitation of these vulnerabilities allows an attacker to execute
arbitrary code with SYSTEM privileges. In order to exploit these
vulnerabilities, it is necessary for an attacker to have valid domain
iDefense confirmed the existence of these vulnerabilities with Computer
Associates' Threat Manager for the Enterprise version 8.1. Other
products that contain the Alert Notification Service are suspected to
be vulnerable as well.
iDefense is currently unaware of any effective workaround for these
VI. VENDOR RESPONSE
Computer Associates has addressed these issues by providing updates.
More information is available in their advisory at the following URL.
VII. CVE INFORMATION
The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CVE-2007-4620 to this issue. This is a candidate for inclusion in
the CVE list (http://cve.mitre.org/), which standardizes names for
VIII. DISCLOSURE TIMELINE
08/24/2007 Initial vendor notification
08/24/2007 Initial vendor response
04/03/2008 Coordinated public disclosure
The discoverer of these vulnerabilities wishes to remain anonymous.
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Copyright © 2008 iDefense, Inc.
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There are no warranties with regard to this information. Neither the
author nor the publisher accepts any liability for any direct,
indirect, or consequential loss or damage arising from use of, or
reliance on, this information.
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