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Microsoft ISA Server 2000 vulnerable to privilege escalation via "NETBIOS" connection

Vulnerability Note VU#367077

Original Release Date: 2005-06-14 | Last Revised: 2005-07-06

Overview

Microsoft Internet Security and Acceleration Server 2000 contains an elevation of privilege vulnerability that allows an attacker to create unintended NetBIOS service connections within the affected ISA Server host.

Description

Microsoft ISA Server 2000 contains firewall, virtual private networking, and web caching solutions. ISA Server 2000 contains a flaw in NetBIOS handling that allows an attacker to connect to NetBIOS services on the ISA Server 2000 host.

Impact

A remote, unauthenticated attacker may be able to connect to NetBIOS services on the affected ISA Server if the ISA Server host has enabled the NetBIOS (all) predefined packet filter.

Solution

Apply An Update

Please see Microsoft Security Bulletin MS05-034 for more information, such as workarounds and patches.

Vendor Information

367077
 
Affected   Unknown   Unaffected

Microsoft Corporation

Updated:  June 14, 2005

Status

  Vulnerable

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

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

Addendum

Please see Microsoft Security Bulletin MS05-034 for more information, such as workarounds and patches.

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


CVSS Metrics

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

References

Acknowledgements

Thanks to Microsoft for information on this issue, who in turn credit Steve Orrin of Watchfire with reporting this vulnerability.

This document was written by Ken MacInnis.

Other Information

CVE IDs: CVE-2005-1216
Severity Metric: 10.83
Date Public: 2005-06-14
Date First Published: 2005-06-14
Date Last Updated: 2005-07-06 18:00 UTC
Document Revision: 7

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