
Rule:

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Sid:
3770

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Summary:
This event is generated when an attempt is made to exploit a known
vulnerability in Veritas Backup Exec Server.

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Impact:
A successful attack can allow an attacker to manipulate system registry
setting on the target host.

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Detailed Information:
A vulnerability exists in the Veritas Backup Server handles DCERPC
requests that attempt to alter registry values, enabling an attacker to
modify the registry.

The Backup Server accepts anonymous client requests, but fails to
assign the appropriate privileges.  This allows an attacker to perform
privileged tasks on the server.  One such task is altering registry
values.

This is done over TCP port 6106 using the DCOM identifier of
93841fd0-16ce-11ce-850d-02608c44967b.  An attack must bind to this ID
and then make a request for this ID.

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Affected Systems:
  Backup Exec 10.0 for Windows Servers rev. 5484
  Backup Exec 9.1 for Windows Servers rev. 4691
  Backup Exec 9.0 for Windows Servers rev. 4454
  Backup Exec 9.0 for Windows Servers rev. 4367

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Attack Scenarios:
An attacker can craft a message to the server using the appropriate
DCOM identifier to gain unauthorized administrative access to the host.

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Ease of Attack:
Simple. Exploits are publicly available.

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False Positives:
None known.

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False Negatives:
None known.

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Corrective Action:
Upgrade to the most current non-affected version of the product.

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Contributors:
Sourcefire Vulnerability Research Team
Brian Caswell <bmc@sourcefire.com>
Judy Novak <judy.novak@sourcefire.com>
Nigel Houghton <nigel.houghton@sourcefire.com>

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Additional References

iDefense:
http://www.idefense.com/application/poi/display?id=232&type=vulnerabili
ties

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