[NT] Internet Information Services 5.0 Denial of Service (WebDAV)
From: SecuriTeam (support_at_securiteam.com)
Date: 05/29/03
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To: list@securiteam.com Date: 29 May 2003 15:40:39 +0200
The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
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Internet Information Services 5.0 Denial of Service (WebDAV)
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SUMMARY
If an attacker sends a Webdav request with a body over 49,153 bytes using
the 'PROPFIND' or 'SEARCH' request methods, IIS will be forced to restart
itself. All web server, email, and active FTP connections will be
terminated, along with a disruption of future sessions during the time it
takes IIS to restart.
DETAILS
System Affected:
* Microsoft Information Server 5.0
* Microsoft Information Server 5.1
Remediation:
Please install the vendor-supplied patch located at
<http://www.microsoft.com/technet/security/bulletin/MS03-018.asp>
http://www.microsoft.com/technet/security/bulletin/MS03-018.asp
ADDITIONAL INFORMATION
The information has been provided by <mailto:spilabs@spidynamics.com> SPI
Labs.
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