Description
IIS 4.0 allows remote attackers to obtain the internal IP address of the server via an HTTP 1.0 request for a web page which is protected by basic authentication and has no realm defined.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Metasploit 1 module
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Microsoft IIS HTTP Internal IP Disclosure
auxiliary/scanner/http/iis_internal_ip
Exploit-DB 1
- Microsoft IIS 2.0/3.0/4.0/5.0/5.1 - Internal IP Address Disclosure EDB-20096 · remote · Jul 13, 2000 · verified
GitHub 3 repositories
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rafaelh/CVE-2000-0649 ★ 8 · Feb 11, 2021
Test for CVE-2000-0649, and return an IP address if vulnerable
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Downgraderz/PoC-CVE-2000-0649 ★ 1 · Jun 18, 2024
A small tool to create a PoC for CVE-2000-0649.
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stevenvegar/cve-2000-0649 ★ 0 · Oct 25, 2021
Script fo testing CVE-2000-0649 for Apache and MS IIS servers
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 20000713 IIS4 Basic authentication realm issue mailing-list
- 1499 vdb-entry