A look at attack vectors the NRF opens up in #5G Core networks, and the mitigations recommended by 3GPP.
Tag: Security
The exchange between a UE and P-CSCF to put SIP traffic into IPsec encapsulated payloads.
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SMS Security – Banks
The other day I got an SMS from my bank, one of the big 4 Australian Banks. BANKNAME Alert: Block placed on card ending in XXXX, for suspicious transaction at ‘THING NICK PURCHASED ONLINE’ for $29.00 at 13:56. If genuine, reply ‘Yes’. If Fraud, reply ‘No’. SMS from bank They’d detected possible fraud on my […]
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Reverse MD5 on SIP Auth
How the SIP Authentication mechanism works, and how we can reverse it to check the password we’re expecting is the encrypted value we’re seeing in captures.