Computer Associates BrightStor ARCserve Backup LGSERVER.EXE heap buffer overflow

Overview

Computer Associates BrightStor ARCserve Backup contains a buffer overflow, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.

Description

Computer Associates BrightStor ARCserve Backup products come with a service called LGSERVER.EXE. This service listens on ports 2200/tcp and 1900/tcp. The LGSERVER.EXE process fails to properly validate the size of data received on port 2200/tcp, which can cause heap memory corruption. According to Computer Associates CAID 34993, the following products are affected

BrightStor ARCserve:

BrightStor ARCserve Backup for Laptops and Desktops r11.1 SP1
BrightStor ARCserve Backup for Laptops and Desktops r11.1
BrightStor ARCserve Backup for Laptops and Desktops r11.0
BrightStor Mobile Backup r4.0``CA Protection Suites r2:

CA Desktop Protection Suite r2
CA Business Protection Suite r2
CA Business Protection Suite for Microsoft Small Business Server Standard Edition r2
CA Business Protection Suite for Microsoft Small Business Server Premium Edition r2``CA Desktop Management Suite:

DMS r11.0
DMS r11.1

Impact

A remote, unauthenticated attacker may be able to execute arbitrary code with local SYSTEM privileges or cause a denial-of-service condition on a vulnerable system.

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Solution

Apply an updateApply an update, as specified in Computer Associates Security Notice. The following fixes are provided

BABLD r11.1 SP2 – SP2 does not contain the vulnerability, there is no fix to apply BABLD r11.1 SP1 - QO83833 BABLD r11.0 - QI85497 DMS r11.1 - QO85401 DMS r11.0 - QI85423 BMB r4.0 - QO85402

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Restrict access

You may wish to block access to the vulnerable software from outside your network perimeter, specifically by blocking access to the ports used by the Discovery Service (typically 2200/tcp and 1900/tcp). This will limit your exposure to attacks. However, blocking at the network perimeter would still allow attackers within the perimeter of your network to exploit the vulnerability. The use of host-based firewalls in addition to network-based firewalls can help restrict access to specific hosts within the network. It is important to understand your network’s configuration and service requirements before deciding what changes are appropriate.

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Vendor Information

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Updated: January 31, 2007

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

Please see the BrightStor Security Notice.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23357308 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://supportconnectw.ca.com/public/sams/lifeguard/infodocs/babldimpsec-notice.asp&gt;
• <http://www3.ca.com/securityadvisor/newsinfo/collateral.aspx?cid=97696&gt;
• <http://www3.ca.com/securityadvisor/vulninfo/vuln.aspx?id=34993&gt;
• <http://secunia.com/advisories/23897&gt;
• <http://xforce.iss.net/xforce/xfdb/31704&gt;
• <http://osvdb.org/displayvuln.php?osvdb_id=31593&gt;
• <http://www.securityfocus.com/bid/22199&gt;

Acknowledgements

This vulnerability was disclosed by Computer Associates, who in turn credit NGSS.

This document was written by Will Dormann.

Other Information

CVE IDs:	CVE-2007-0449
Severity Metric:	23.33 Date Public: