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Title: Elevation of Privilege in SQL Server Web Tasks (Q316333) Released: 16 October 2002 Software: Microsoft SQL Server 7.0 and 2000 Impact: Elevation of privilege Max Risk: Critical Bulletin: MS02-061
Microsoft encourages customers to review the Security Bulletin at: http://www.microsoft.com/technet/security/bulletin/MS02-061.asp.
SQL Server 7.0 and 2000 provide stored procedures which is a coll- ection of Transact-SQL statements stored under a name and processed as a group. One stored procedure, an extended stored procedure and weak permissions on a table combine to allow a low privileged user the ability to run, delete, insert or update web tasks.
An attacker who is able to authenticate to a SQL server could delete, insert or update all the web tasks created by other users. In addition, the attacker could run already created web tasks in the context of the creator of the web task. This typically runs in the context of the SQL Server Agent service account.
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