Description
Directory traversal vulnerability in IIS 5.0 and earlier allows remote attackers to execute arbitrary commands by encoding .. (dot dot) and "\" characters twice.
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
-
MS01-026 Microsoft IIS/PWS CGI Filename Double Decode Command Execution
exploit/windows/iis/ms01_026_dbldecode
Exploit-DB 9
- Microsoft IIS/PWS - CGI Filename Double Decode Command Execution (MS01-026) (Metasploit) EDB-16467 · remote · Jan 8, 2011 · verified
- Microsoft IIS 3.0/4.0/5.0 - PWS Escaped Characters Decoding Command Execution (2) EDB-20836 · remote · May 16, 2001 · verified
- Microsoft IIS 3.0/4.0/5.0 - PWS Escaped Characters Decoding Command Execution (1) EDB-20835 · remote · May 15, 2001 · verified
- Microsoft IIS 3.0/4.0/5.0 - PWS Escaped Characters Decoding Command Execution (3) EDB-20837 · remote · May 15, 2001 · verified
- Microsoft IIS 3.0/4.0/5.0 - PWS Escaped Characters Decoding Command Execution (4) EDB-20838 · remote · May 15, 2001 · verified
- Microsoft IIS 3.0/4.0/5.0 - PWS Escaped Characters Decoding Command Execution (5) EDB-20839 · remote · May 15, 2001 · verified
- Microsoft IIS 3.0/4.0/5.0 - PWS Escaped Characters Decoding Command Execution (6) EDB-20840 · remote · May 15, 2001 · verified
- Microsoft IIS 3.0/4.0/5.0 - PWS Escaped Characters Decoding Command Execution (7) EDB-20841 · remote · May 15, 2001 · verified
- Microsoft IIS 3.0/4.0/5.0 - PWS Escaped Characters Decoding Command Execution (8) EDB-20842 · remote · May 15, 2001 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- MS01-026 vendor-advisory
- oval:org.mitre.oval:def:1051 vdb-entry signature
- CA-2001-12 third-party-advisory
- iis-url-decoding(6534) vdb-entry
- oval:org.mitre.oval:def:37 vdb-entry signature
- oval:org.mitre.oval:def:78 vdb-entry signature
- 2708 vdb-entry
- 20010515 NSFOCUS SA2001-02 : Microsoft IIS CGI Filename Decode Error Vulnerability mailing-list
- oval:org.mitre.oval:def:1018 vdb-entry signature