Vulnerability Assessment & Network Security Forums
If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
Tests for IIS .ida ISAPI filter
Detailed Explanation for this Vulnerability Assessment
Indexing Service filter is enabled on the remote Web server.
The IIS server appears to have the .IDA ISAPI filter mapped.
At least one remote vulnerability has been discovered for the .IDA
(indexing service) filter. This is detailed in Microsoft Advisory
MS01-033, and gives remote SYSTEM level access to the web server.
It is recommended that even if you have patched this vulnerability that
you unmap the .IDA extension, and any other unused ISAPI extensions
if they are not required for the operation of your site.
To unmap the .IDA extension:
1.Open Internet Services Manager.
2.Right-click the Web server choose Properties from the context menu.
4.Select WWW Service -> Edit -> HomeDirectory -> Configuration
and remove the reference to .ida from the list.
In addition, you may wish to download and install URLSCAN from the
Microsoft Technet web site. URLSCAN, by default, blocks all .ida
requests to the IIS server.
Network Security Threat Level:
None / CVSS Base Score : 0
Networks Security ID: 2880
Vulnerability Assessment Copyright: This script is Copyright (C) 2001 Matt Moore
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