CVE-2002-0422

Internet Information Services 5.0-5.1 - Internal IP Address Exposure via WebDAV Methods

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2002-0422. PoCs published by Heather Pilkington, Matthew Dunn - k0pak4, et, including Metasploit module auxiliary/scanner/http/iis_internal_ip.

AI-analyzed exploit summary This Metasploit module exploits CVE-2000-0649 to disclose internal IP addresses by sending HTTP requests without a 'Host' header to IIS servers. It checks responses for internal IP patterns in redirect headers or PROPFIND responses.

Description

IIS 5 and 5.1 supporting WebDAV methods allows remote attackers to determine the internal IP address of the system (which may be obscured by NAT) via (1) a PROPFIND HTTP request with a blank Host header, which leaks the address in an HREF property in a 207 Multi-Status response, or (2) via the WRITE or MKCOL method, which leaks the IP in the Location server header.

Exploits (2)

metasploit WORKING POC
by Heather Pilkington, Matthew Dunn - k0pak4 · rubypoc
https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/http/iis_internal_ip.rb

This Metasploit module exploits CVE-2000-0649 to disclose internal IP addresses by sending HTTP requests without a 'Host' header to IIS servers. It checks responses for internal IP patterns in redirect headers or PROPFIND responses.

Classification
Working Poc 95%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Microsoft IIS (versions 4.0, 5.0, 5.1, 7.0+)
No auth needed
Prerequisites: Network access to the target IIS server
devstral-2 · analyzed Feb 16, 2026 Full analysis →
metasploit SCANNER
by et · rubypoc
https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/http/webdav_internal_ip.rb

This Metasploit auxiliary module scans for internal IP addresses in WebDAV responses by sending a PROPFIND request and parsing the response for common private IP ranges. It does not exploit a vulnerability but leverages misconfigurations or verbose error messages.

Classification
Scanner 100%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Web servers with WebDAV enabled
No auth needed
Prerequisites: WebDAV enabled on the target server · Network access to the target
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory vdb-entry x_refsource_xf
http://www.iss.net/security_center/static/8385.php
Mailing List mailing-list x_refsource_ntbugtraq
http://marc.info/?l=ntbugtraq&m=101535147125320&w=2
Mailing List mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=101536634207324&w=2
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://www.osvdb.org/13431

Scores

EPSS 0.4434
EPSS Percentile 98.6%

Details

CWE
CWE-200
Status published
Products (1)
microsoft/internet_information_services 5.0
Published Aug 12, 2002
Tracked Since Feb 18, 2026