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SIPp
SIP / IMS / VoLTEHigh-performance SIP protocol generator and traffic fuzzer for testing VoLTE, VoNR, IMS, and telecom PBX security.
⚡ Quick Telecom Protocol BriefSIP / IMS / VoLTE
SIPp is an open-source IMS & VoLTE Security component included in TelcoChisel for telecommunications security auditing. It targets SIP / IMS / VoLTE infrastructure for compliance with 3GPP and GSMA telecom security standards.
Primary Binary:
sippHardware: Ethernet / IP InterfaceSIPp — SIP, IMS & VoLTE Traffic Generator & Security Fuzzer
SIPp is the industry-standard performance testing, traffic generation, and fuzzing tool for the Session Initiation Protocol (SIP). In TelcoChisel, SIPp comes bundled with specialized XML scenarios for fuzzing VoLTE (Voice over LTE) and VoNR (Voice over New Radio) IMS network components including P-CSCF, S-CSCF, and I-CSCF proxies.
Key Telecom Security Use Cases
- VoLTE & VoNR IMS Core Fuzzing: Test SIP invite message handling, header parsing vulnerabilities, and buffer overflows.
- SIP Authentication Bypass Testing: Verify nonce validation, digest authentication, and registration spoofing.
- Telecom DoS & Flooding Simulation: Simulate high-velocity call invite storms to evaluate IMS SBC (Session Border Controller) rate-limiting thresholds.
Cheatsheet
1. Execute Default VoLTE User Agent Client (UAC) Scenario
# Send 10 calls per second to target IMS P-CSCF
sipp -sn uac -r 10 -l 50 192.168.100.10:5060
2. Run Custom Malformed SIP Invite Fuzzing Scenario
# Execute XML scenario injecting malformed headers
sipp -sf /opt/telcochisel/scenarios/volte_fuzz.xml 192.168.100.10:5060 -trace_err
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