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Title: Cumulative Patch for Microsoft SQL Server (815495)
Date: 23 July 2003
Software:
Impact: Run code of attacker's choice
Max Risk: Important
Bulletin: MS03-031
Microsoft encourages customers to review the Security Bulletins at:
http://www.microsoft.com/technet/security/bulletin/MS03-031.asp
http://www.microsoft.com/security/security_bulletins/ms03-031.asp
This is a cumulative patch that includes the functionality of all
previously released patches for SQL Server 7.0, SQL Server 2000, MSDE
1.0, and MSDE 2000. In addition, it eliminates three newly discovered
vulnerabilities.
A flaw exists in the checking method for the named pipe that could
allow an attacker local to the system running SQL Server to hijack
(gain control of) the named pipe during another client's
authenticated logon password. This would allow the attacker to gain
control of the named pipe at the same permission level as the user
who is attempting to connect. If the user who is attempting to
connect remotely has a higher level of permissions than the attacker,
the attacker will assume those rights when the named pipe is
compromised.
This vulnerability would not allow an attacker to run arbitrary code
or elevate their permissions, but it may still be possible for a
denial of service condition to exist that would require that the
server be restarted to restore functionality.
Named Pipe Hijacking:
Named Pipe Denial of Service:
SQL Server Buffer Overrun:
A patch is available to fix this vulnerability. Please read the
Security Bulletins at
http://www.microsoft.com/technet/security/bulletin/ms03-031.asp
http://www.microsoft.com/security/security_bulletins/ms03-031.asp
for information on obtaining this patch.
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PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS
ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE
FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION
OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO
THE FOREGOING LIMITATION MAY NOT APPLY.
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