Description
An unrestricted file upload vulnerability exists in MiniWeb HTTP Server <= Build 300 that allows unauthenticated remote attackers to upload arbitrary files to the server’s filesystem. By abusing the upload handler and crafting a traversal path, an attacker can place a malicious .exe in system32, followed by a .mof file in the WMI directory. This triggers execution of the payload with SYSTEM privileges via the Windows Management Instrumentation service. The exploit is only viable on Windows versions prior to Vista.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| MiniWeb | MiniWeb | ≤ Build 300 | — |
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.
Metasploit 1 module
-
MiniWeb (Build 300) Arbitrary File Upload
exploit/windows/http/miniweb_upload_wbem
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/miniweb_upload_wbem.rb exploit
- https://www.exploit-db.com/exploits/27607 exploit
- https://sourceforge.net/projects/miniweb/ product
- https://www.vulncheck.com/advisories/miniweb-arbitrary-file-upload third-party-advisory