Security Bulletin (MS00-048)

2000-07-0800:00:00

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Microsoft Security Bulletin (MS00-048)

Patch Available for "Stored Procedure Permissions" Vulnerability
Originally Posted: July 7, 2000

Summary

Microsoft has released a patch that eliminates a security
vulnerability in Microsoft(r) SQL Server 7.0. The vulnerability could
allow a malicious user to run a database stored procedure without
proper permissions.

Frequently asked questions regarding this vulnerability and the patch
can be found at:
http://www.microsoft.com/technet/security/bulletin/fq00-048.asp

Issue

Execute permission checks on stored procedures may be bypassed when a
stored procedure is referenced from a temporary stored procedure.
This omission would allow a malicious user to run a stored procedure
that, by design, he should not be able to access.

The vulnerability only occurs under a fairly restricted set of
conditions:

The database and stored procedure must be owned by the system
administrator (sa) login account.
The malicious user must be able to authenticate to the SQL Server,
and have user access to the referenced database.

Affected Software Versions

Microsoft SQL Server 7.0

Patch Availability

NOTE: Additional security patches are available at the Microsoft
Download Center

More Information

Please see the following references for more information related to
this issue.

Frequently Asked Questions: Microsoft Security Bulletin MS00-048,
http://www.microsoft.com/technet/security/bulletin/fq00-048.asp
Microsoft Knowledge Base (KB) article, Q266766
Microsoft TechNet Security web site,
http://www.microsoft.com/technet/security/default.asp

Obtaining Support on this Issue

This is a fully supported patch. Information on contacting Microsoft
Product Support Services is available at
http://support.microsoft.com/support/contact/default.asp

Acknowledgments

Microsoft thanks Adina Reeve of Sequiturcorp for reporting this issue
and working with us to protect customers.

Revisions

July 7, 2000: Bulletin Created.

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Last Updated July 7, 2000