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Moderately critical

Microsoft SQL allows privilege escalation

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Release Date:  2002-10-17    Last Update:  2003-01-21    Views:  8,981

Secunia Advisory SA7325

Where:

From remote

Impact:

Privilege escalation

Solution Status:

Vendor Patch

CVE Reference(s):

No CVE references.

Description


Attackers with a valid account to a Microsoft SQL server 7 or 2000 could delete, update or insert all web tasks inserted by other users.

This could allow an attacker to execute tasks with the rights of the SQL Server Agent account, this is usually a "domain user", but some have installed it to run with "system" privileges.

The problem is that xp_runwebtask can be run by "PUBLIC" and the table "msdb.dbo.mswebtasks" are set so "PUBLIC" may insert, update, delete and select from the table, this allows an attacker to insert tasks which will be executed with the rights of the SQL Server Agent.


Solution:
Patches are available:

Further details available to Secunia VIM customers

Provided and/or discovered by:
David Litchfield

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Microsoft SQL allows privilege escalation

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