Symantec Security Advisory SYM06-014 - Backup Exec for NetWare Servers Remote Agent for Windows Servers

Details:

SYM06-014

31 July 2006

Backup Exec: RPC Interface Heap Overflow, Authorized User Potential Elevation of Privilege

Revision History

None

Severity

Medium

Supported Products Affected

Backup Exec 9.1 for Netware Servers Remote Agent for Windows Servers (all builds)

Backup Exec 9.2 for NetWare Servers Remote Agent for Windows Servers (all builds)

Details

Tenable Network Security http://www.tenablesecurity.com notified Symantec of heap overflow issues they identified in the RPC interfaces of the Backup Exec Remote Agent for Windows Servers that is used by Backup Exec for NetWare Servers to protect remote Windows systems. The overflows occur due to improper validation and the subsequent handling of input. Successful exploitation would require the attacker to have authorized but non-privileged access to the network on which the target system resides. A malicious user who attempted such an attack may cause the targeted application to crash, or more rarely could execute arbitrary code to gain elevated privilege on the targeted system.

Backup Exec for Netware Servers Remote Agent for Windows Servers should be reinstalled from the download files listed below:

Backup Exec 9.1.1158.9 for NetWare Servers with RAWS 4691.42 Hotfix 58 (English, French, German)

http://support.veritas.com/docs/284643

Backup Exec 9.2.1401.3 for NetWare Servers with RAWS 5629.3 Hotfix 34 (English, French, German)

http://support.veritas.com/docs/284642

Note: Backup Exec for Windows Servers, Backup Exec Continuous Protection Server (CPS) Remote Agent, and other Backup Exec Remote Agents are also vulnerable to heap overflows from specifically formatted calls to RPC interfaces. For full details and a complete list of affected Backup Exec for Windows Servers products and patches developed to address these issues in those products, please see the following associated Backup Exec for Windows Servers Security Advisory:

http://support.veritas.com/docs/284343

Symantec Response

Symantec engineers did in-depth reviews of the reported issue and related file functionality to further enhance the overall security of Symantec Backup Exec products and to eliminate any additional concerns. Symantec engineers have at this time addressed the issue in all currently supported versions of the identified products.

Security updates are now available for all supported products. Symantec strongly recommends all customers apply the latest security update as indicated for their supported product versions to protect against threats of this nature.

Symantec knows of no exploitation or adverse customer impact from these issues.

Best Practices

As part of normal best practices, Symantec recommends:

Restrict access to administration or management systems to privileged users.
Restrict remote access, if required, to trusted/authorized systems only.
Remove/disable unnecessary accounts or restrict access according to security policy as required.
Run under the principle of least privilege where possible.
Keep all operating systems and applications updated with the latest vendor patches.
Follow a multi-layered approach to security. Run both firewall and antivirus applications, at a minimum, to provide multiple points of detection and protection to both inbound and outbound threats.
Deploy network intrusion detection systems to monitor network traffic for signs of anomalous or suspicious activity. This may aid in detection of attacks or malicious activity related to the exploitation of the latest vulnerabilities.

Related Documents:

http://support.veritas.com/docs/284343

http://support.veritas.com/docs/284642

Products Applied:
Backup Exec for NetWare 9.1, 9.2

Last Updated: August 11 2006 02:57 AM GMT
Expires on: 365 days from publish date

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Subjects:
Backup Exec for NetWare
Application: Agent Support
Publishing Status: Techalert

Languages:
English (US), French, German

Operating Systems:
NetWare

5.1, 6.0, 6.5, 6.5 OES

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