Microsoft Index Server webhits.dll reveals source of ASP files
| http-indexserver-asp-source (4227) |  High Risk |
Description:
Microsoft Index Server could expose the source code of Active Server Pages (ASP files) and other server-side Web files. A vulnerability in the webhits.dll file allows a remote attacker to view the unprocessed source code of certain server-side files by requesting a specially-crafted URL that includes a %20 after the file name.
Platforms Affected:
- Microsoft, Index Server 2.0
Remedy:
Obtain the appropriate patch for your system, as listed in Microsoft Security Bulletin MS01-025, MS01-033, MS01-041, MS01-44, MS02-001 or MS02-018. See References.
For Windows NT Server 4.0, Terminal Server Edition:
Microsoft originally provided a patch for this vulnerability in MS00-006, but it has been superseded by the patch released with MS01-033, and then superseded by the patch released with MS02-018.
For Windows NT 4.0:
Microsoft originally provided patches for this vulnerability in MS00-006, MS01-025, MS01-033, MD01-041 and MS02-001, but they have been superseded by the Security Roll-up patch released with MS02-018. See References.
For Windows 2000:
Microsoft originally provided a patch for this vulnerability in MS01-025, but it has been superseded by the patch released with MS02-001. See References.
Consequences:
Obtain Information
References:
- CIAC Information Bulletin K-068, Automated Web Interface Scans IIS for Multiple Vulnerabilities at http://www.ciac.org/ciac/bulletins/k-068.shtml.
- Microsoft Security Bulletin MS00-006, Patch Available for "Malformed Hit-Highlighting Argument" Vulnerability at http://www.microsoft.com/technet/security/bulletin/ms00-006.mspx.
- Microsoft Security Bulletin MS01-025, Index Server Search Function Contains Unchecked Buffer at http://www.microsoft.com/technet/security/bulletin/MS01-025.mspx.
- Microsoft Security Bulletin MS01-033, Unchecked Buffer in Index Server ISAPI Extension Could Enable Web Server Compromise at http://www.microsoft.com/technet/security/bulletin/ms01-033.mspx.
- Microsoft Security Bulletin MS01-041, Malformed RPC Request Can Cause Service Failure at http://www.microsoft.com/technet/security/bulletin/ms01-041.mspx.
- Microsoft Security Bulletin MS01-044, 15 August 2001 Cumulative Patch for IIS at http://www.microsoft.com/technet/security/bulletin/ms01-044.mspx.
- Microsoft Security Bulletin MS02-001, Trusting Domains Do Not Verify Domain Membership of SIDs in Authorization Data at http://www.microsoft.com/technet/security/bulletin/ms02-001.mspx.
- Microsoft Security Bulletin MS02-018, Cumulative Patch for Internet Information Services (Q319733) at http://www.microsoft.com/technet/security/bulletin/ms02-018.mspx.
- BID-1084: MS Index Server %20 ASP Source Disclosure Vulnerability
- BID-2269: Microsoft Index Server Webhits.dll ASP Source Disclosure Vulnerability
- CVE-2000-0302: Microsoft Index Server allows remote attackers to view the source code of ASP files by appending a %20 to the filename in the CiWebHitsFile argument to the null.htw URL.
- OSVDB ID: 271: Microsoft IIS WebHits null.htw .asp Source Disclosure
Reported:
Mar 31, 2000
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