Microsoft SQL Server SQLXML ISAPI buffer overflow

mssql-sqlxml-isapi-bo (9328) The risk level is classified as HighHigh Risk

Description:

Microsoft SQLXML, included as part of Microsoft SQL Server 2000 Gold or available as a separate add-on component for SQL Server, is vulnerable to a buffer overflow in the Internet Services Application Programming Interface (ISAPI) extension that handles data queries over HTTP. SQLXML is a component used to exchange Extensible Markup Language (XML) data with a SQL server. By sending a malformed HTTP database request to an affected server, a remote attacker could overflow a buffer and execute arbitrary code on the server or cause the server to fail.


Consequences:

Gain Access

Remedy:

For vulnerability detection:

Enable the following checks in the ISS Protection Platform:
MssqlSqlxmlIsapiBo
MS02-030a

For Virtual Patch:

Enable the following checks in the ISS Protection Platform:
HTTP_IIS_MSSQL_xml

Block or restrict the following in the ISS Protection Platform as appropriate to the environment:
Port 80

For Manual Protection:

Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS02-030. See References.

References:

Platforms Affected:

  • Microsoft SQL Server 2000
  • Microsoft SQL Server 2000 Gold
  • Microsoft SQLXML 2
  • Microsoft SQLXML 3
  • Microsoft Windows 2003 Server
  • Microsoft Windows XP Professional

Reported:

Jun 12, 2002

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email xforce@iss.net

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