Vulnerability Note VU#864801

Computer Associates BrightStor ARCserve Backup Discovery Service vulnerable to buffer overflow

Exploit code for this vulnerability is publicly available.

II. Impact

Upgrade or install patches, as recommended by the Computer Associates vulnerability 32056 description.

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 41524/udp). 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.

Systems Affected

http://www3.ca.com/securityadvisor/vulninfo/vuln.aspx?ID=32056
http://secunia.com/advisories/14183
http://xforce.iss.net/xforce/xfdb/19251
http://www.osvdb.org/displayvuln.php?osvdb_id=13613

Credit

This vulnerability was reported by iDEFENSE, who in turn credits Patrik Karlsson and an anonymous source.

This document was written by Will Dormann.

Other Information

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