Index Server Source Disclosure

vendor:

N/A

by:

SecurityFocus

7.5

CVSS

HIGH

Index Server Source Disclosure

200

CWE

Product Name: N/A

Affected Version From: N/A

Affected Version To: N/A

Patch Exists: No

Related CWE: N/A

CPE: N/A

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: N/A

2001

Index Server Source Disclosure

Index Server can be used to cause IIS to display the source of .asp and possibly other server-side processed files. By appending a space (%20) to the end of the filename specified in the 'CiWebHitsFile' variable, and setting 'CiHiliteType' to 'Full' and 'CiRestriction' to 'None', it is possible to retrieve the unprocessed source of the file. This is possible on any machine with Index Server installed, even those with no normal .htw files, because the virtual file null.htw is stored in memory and the .htw extension is mapped by default to webhits.dll.

Mitigation:

Restrict access to the null.htw file and ensure that the CiHiliteType and CiRestriction variables are not set to Full and None respectively.

Source

Exploit-DB raw data:

source: https://www.securityfocus.com/bid/1084/info

Index Server can be used to cause IIS to display the source of .asp and possibly other server-side processed files.

By appending a space (%20) to the end of the filename specified in the 'CiWebHitsFile' variable, and setting 'CiHiliteType' to 'Full' and 'CiRestriction' to 'None', it is possible to retrieve the unprocessed source of the file.

This is possible on any machine with Index Server installed, even those with no normal .htw files, because the virtual file null.htw is stored in memory and the .htw extension is mapped by default to webhits.dll . 

Requesting a URL like the following will return the source of default.asp on a vulnerable system:

http://target/null.htw?CiWebHitsFile=/default.asp%20&CiRestriction=none&CiHiliteType=Full