Vulnerability Note VU#357308

Computer Associates BrightStor ARCserve Backup LGSERVER.EXE heap buffer overflow

Original Release date: 31 Jan 2007 | Last revised: 02 Feb 2007

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.

Solution

Apply an update Apply 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

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.

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Computer AssociatesAffected-31 Jan 2007
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A

References

Credit

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
  • Date Public: 23 Jan 2007
  • Date First Published: 31 Jan 2007
  • Date Last Updated: 02 Feb 2007
  • Severity Metric: 23.33
  • Document Revision: 13

Feedback

If you have feedback, comments, or additional information about this vulnerability, please send us email.