Unified Communications Security Report to The Industry
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1 Unified Communications Security Report to The Industry Mark D. Collier Chief Technology Officer SecureLogix Corporation ETM, TeleWatch Secure, TWSA, We See Your, SecureLogix, SecureLogix Corporation, the SecureLogix Emblem and the SecureLogix Diamond Emblem are trademarks and/or service marks or registered trademarks and/or service marks of SecureLogix Corporation in the U.S.A. and other countries. All other trademarks mentioned herein are believed to be trademarks of their respective owners. Copyright 2012 SecureLogix Corporation. All Rights Reserved. SecureLogix technologies are protected by one or more of the following patents: US 6,226,372 B1, US 6,249,575 B1, US 6,320,948 B1, US 6,687,353 B1, US 6,718,024 B1, US 6,760,420 B2, US 6,760,421 B2, US 6,879,671 B1, US 7,133,511 B2, US 7,231,027 B2, US 7,440,558 B2, US 8,150,013 B2, CA 2,354,149, DE 1,415,459 B1, FR 1,415,459 B1, and GB 1,415,459 B1.
2 About SecureLogix SecureLogix: UC security and management policy company Security solutions for UC and traditional voice networks Our applications are integrated into Cisco routers We have product and managed service offerings Cloud solutions as well as CPE About me: Author of Hacking Exposed: UC and VoIP Conducted many security assessments markcollier46 on twitter/google+
3 UC Security Overview
4 Network And Application Security Network Security (Malicious Packets) Network DoS Network Intrusion Non-Secure Endpoints Eavesdropping Evolving Security Application Security (Malicious Calls) Telephony DoS Social Engineering / ATO IRSF / Toll Fraud Robocalls / Scams / Vishing Harassing Calls UC federation Mobile Cloud WebRTC and OTT Federation
5 Low/High/No/Negative Value Calls
6 Anonymous TDoS Threat
7 Simple Automated TDoS Agents/Users May target part of a CC Single SIP origination Calling number not spoofed Restricted/blocked numbers Poorly formed numbers Poorly selected audio Difficult to sustain Public Network Systems
8 9 AM :28 :43 :55 :07 :17 :28 :38 :48 :58 :07 :17 :27 :37 :47 :57 :06 :16 :26 :36 :46 :56 :05 :15 :25 :35 :45 :55 :04 :14 :24 :34 :44 :54 :03 :13 :23 :33 :43 :53 :02 :12 Simple Automated TDoS - Example Attacker Responds Bank Branch Attack Branch s closed at 4PM Manager Confronts Attacker Attack Begins Bank Branch A Bank Branch B
9 Complex Automated TDoS Agents/Users Likely to target part of CC Single SIP origination Well selected SIP provider Calling number spoofed SIP headers spoofed Well chosen audio Dwell in IVR, create callbacks Possible to sustain Public Network Systems
10 Complex Automated TDoS Turnkey Tools
11 Distributed/Complex Automated TDoS Agents/Users Targets overall capacity May also target part of CC Multiple SIP origination Well selected SIP providers Botnets Calling number spoofed SIP headers spoofed Well chosen audio Dwell in IVR, create callbacks Most sustainable Public Network Systems
12 Social Networking TDoS Agents/Users May target part of a CC Many different callers Callers can dwell in IVR Callers can engage agents Create callbacks Somewhat difficult to sustain Public Network Systems
13 Social Networking TDoS Example
14 Financial Fraud/Social Engineering Agents/Users Targets consumer accounts Uses anonymous number or Spoofs calling number Uses personal info from sources Tries to gather info from agents Always manual/multiple calls Attacker targets IVR Spoofs caller ID Guesses accounts/passwords May be brute-force or stealth May be automated Public Network Systems
15 Financial Fraud Example 300 Social Engineering Attack from 515-xxx-xxxx Bank responds by blocking all calls from attacker Caller used an invalid area code Caller attempted to block calling number Excessive DTMF digits in IVR Calls durations were longer than normal Attacker attempts several account takeovers Attacker has no history of being a customer Attacker probes bank using harvested data 0 Sucessful Calls Terminated Calls
16 IRSF Toll Fraud Attacker sets up a premium number and generates calls Public Network Systems Traffic Generator
17 IRSF Toll Fraud Example Call Termination Reconnaissance / Testing
18 Call Pumping Single SIP origination Well selected SIP provider Calls for connect charges Calls for per minute charges Calling number spoofed SIP headers spoofed DTMF IVR looping Well chosen duration Simple audio Possible to sustain Can create a TDoS situation if the attacker is sloppy Public Network Agents/Users Systems
19 Call Pumping Example 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0%
20 SPAM/Phishing/Scams (Robocalls) Automated transmission of: SPAM Scams Agents/Users Public Network Systems
21 SPAM/Phishing/Scams Automated transmission of: phishing calls Agents/Users messages with outbound Numbers can also be used Phishing site or number Public Network Systems
22 SPAM/Phishing/Scam Types Robocall Types
23 Harassing Calls Automated transmission of: Persistent callers Annoying/offensive calls Bomb threats SWAT calls Public Network Agents/Users Systems
24 Harassing Calls - Example Persistent Harassing Caller
25 UC Federation Data leakage, intrusion, and malware delivery Increased threat due to federation Many more endpoints Vulnerabilities across: Audio Video Instant Messaging File Transfer Presence
26 UC Security Best Practices Develop a UC security policy Collect real-time data about your UC services, across your enterprise Implement UC application security on perimeter Implement SIP packet-level security on perimeter Implement good internal data network security Prioritize security during UC deployments Use encryption where possible for authentication, confidentiality, and integrity Consider an independent security assessment to examine your network for the issues covered here
27 Security Report to Industry Thank You..Be Safe Out There!!
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