Date: 15 May 2001
References: ESB-2000.112
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===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2001.201 -- Microsoft Security Bulletin MS00-035 (version 2.0)
Patch Available for "SQL Server 7.0 Service Pack Password" Vulnerability
15 May 2001
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Microsoft SQL Server 7.0
Vendor: Microsoft
Impact: Administrator Compromise
Access Required: Existing Account
Ref: ESB-2000.112
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Title: Patch Available for "SQL Server 7.0 Service Pack
Password" Vulnerability
Released: 15 June 2000
Revised: 10 May 2001 (version 2.0)
Software: SQL Server 7.0
Impact: Information disclosure
Bulletin: MS00-035
Microsoft encourages customers to review the Security Bulletin at:
http://www.microsoft.com/technet/security/bulletin/MS00-035.asp.
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Reason for Revision:
====================
Bulletin was revised to reflect a patch available for SQL Server 7.0
Service Pack 3 and a password removal tool available via KB
article Q263968.
Issue:
======
When SQL Server 7.0 Service Packs 1, 2, or 3 are installed on a
machine
that is configured to perform authentication using Mixed Mode, the
password for the SQL Server standard security System Administrator
(sa)
account is recorded in plaintext in the files %TEMP%sqlsp.log and
%WINNT%setup.iss. The default permissions on the files would allow
any
user to read them who could log onto the server interactively.
The password is only recorded if Mixed Mode is used, and even then,
only if the adminstrator chose to use SQL Server Authentication when
installing the service pack. Microsoft has long recommended that SQL
servers be configured to use the more secure Windows NT
Authentication
Mode, and customers who have followed this recommendation would not
be
affected. Even on affected machines, the password could not be
compromised if, per normal security recommendations, normal users are
prevented from logging onto the machine interactively.
Mitigating Factors:
====================
- It does not occur when the recommended authentication method,
Windows NT Authentication, is used.
- Even when Mixed Mode is used, it only occurs if a particular type
of
authentication, SQL Server Authentication, is used.
- By default, the files containing the password could only be read
by
a user who could interactively log onto the server. Standard
security
recommendations strongly militate against allowing normal users to
interactively log onto security critical servers such as database
servers.
Patch Availability:
===================
- A patch is available to fix this vulnerability. Please read the
Security Bulletin
http://www.microsoft.com/technet/security/bulletin/ms00-035.asp
for information on obtaining this patch.
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APPLY.
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