Vulnerability Note VU#860048

Computer Associates BrightStor ARCserv and Protection Suite products RPC buffer overflow vulnerabilities

Overview

Multiple vulnerabilities exist in Computer Associates backup products. If successfully exploited, these vulnerabilities may allow an attacker to execute arbitrary code.

I. Description

BrightStor ARCserve Backup is a backup and data retention tool that integrates with other BrightStor Data Availability and BrightStor Storage Management solutions. Computer Associates Protection Suites offer multiple Computer Associates security and data recovery products in a single package.

BrightStor and CA (Computer Associates) Protection Suite products contain multiple buffer overflow vulnerabilities due to incorrect handling of RPC requests. These overflows may be exploited by sending a malformed RPC request with Opnum 43 (port 6503/tcp) or Opnum 45 (port 6503/tcp) to a vulnerable system.

Note that only the Microsoft Windows versions of Computer Associates products are affected by this vulnerability.

For more information, including a list of affected products, refer to the Computer Associates Security Advisory.

II. Impact

A remote, unauthenticated attacker may be able to execute arbitrary code with SYSTEM privileges.

III. Solution

Upgrade

According to Computer Associates:

Customers with vulnerable versions of the BrightStor ARCserve Backup products should upgrade to the latest versions which will be available for download from

http://supportconnect.ca.com

on or before October 5.

Restrict Access

Restricting access to port 6503/tcp at the network perimeter may mitigate the impact of this vulnerability.

Systems Affected

Vendor	Status	Date Notified	Date Updated
Computer Associates	Vulnerable	2-Nov-2006

References

http://www.tippingpoint.com/security/advisories/TSRT-06-11.html
http://www.zerodayinitiative.com/advisories/ZDI-06-030.html
http://www.zerodayinitiative.com/advisories/ZDI-06-031.html
http://www.lssec.com/advisories/LS-20060220.pdf
http://www.lssec.com/advisories/LS-20060313.pdf
http://www.lssec.com/advisories/LS-20060330.pdf
http://supportconnectw.ca.com/public/storage/infodocs/basbr-secnotice.asp
http://www3.ca.com/securityadvisor/vulninfo/vuln.aspx?id=34693
http://www.securityfocus.com/bid/20365
http://www.frsirt.com/english/advisories/2006/3930
http://securitytracker.com/id?1017003
http://securitytracker.com/id?1017004
http://securitytracker.com/id?1017005
http://securitytracker.com/id?1017006
http://xforce.iss.net/xforce/xfdb/29364

Credit

This vulnerability was reported by the TippingPoint and the Zero Day Initiative. TippingPoint credits LSsecurity with reporting this vulnerability.

This document was written by Ryan Giobbi.

Other Information

Date Public:	2006-10-05
Date First Published:	2006-11-02
Date Last Updated:	2007-02-06
CERT Advisory:
CVE-ID(s):	CVE-2006-5143
NVD-ID(s):	CVE-2006-5143
US-CERT Technical Alerts:
Metric:	0.28
Document Revision:	47

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Produced 2006 by US-CERT, a government organization
Disclaimers and copyright information

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