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AUSCERT External Security Bulletin Redistribution
ESB-1999.095 -- Microsoft Security Bulletin (MS99-025)
Re-Release: Unauthorized Access to IIS Servers
through ODBC Data Access with RDS
20 July 1999
Microsoft Corporation has released the following security bulletin
concerning a re-release of their bulletin MS98-004 (originally
released by AusCERT as ESB-98.113).
It has recently been brought to Microsoft's attention that this
vulnerability has been used to gain unauthorised access to
Internet-connected systems that have not been updated as per the
instructions in MS98-004. Microsoft's intent of re-releasing this
bulletin was to serve as a reminder about this vulnerability, to
restate the threat, and encourage system administrators to evaluate
their systems to determine if their systems have been correctly
configured and updated to protect against this vulnerability.
This bulletin concerns a vulnerability in the Remote Data Service
(RDS). This vulnerability may be exploited to allow unauthorised
Internet clients to access OLE DB datasources or to execute shell
commands on the IIS system as a privileged user. The new Microsoft
bulletin is available at URL:
This security bulletin is provided as a service to AusCERT's members.
As AusCERT did not write the document referenced above, AusCERT has
had no control over its content. The decision to use any or all
of this information is the responsibility of each user or organisation,
and should be done so in accordance with site policies and procedures.
If you have any questions or need further information, please contact
Microsoft Corporation directly.
Previous advisories and external security bulletins can be retrieved from:
If you believe that your system has been compromised, contact AusCERT or
your representative in FIRST (Forum of Incident Response and Security
Internet Email: firstname.lastname@example.org
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for emergencies.
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