FREE SIP Security Questions and Answers
Which SIP authentication mechanism involves sending a challenge-response pair to verify user credentials?
Digest Authentication is used in SIP to authenticate users by sending a challenge-response pair. The server challenges the client to provide a hashed response based on the user's credentials, which helps verify the user's identity securely.
Which protocol is commonly used to encrypt SIP signaling to protect against eavesdropping?
TLS (Transport Layer Security) is used to encrypt SIP signaling messages, protecting them from eavesdropping and ensuring that the communication remains confidential and secure.
What is SIP spoofing?
SIP spoofing is an attack where an attacker falsifies SIP headers to impersonate a legitimate SIP entity. This can lead to unauthorized access, fraud, or disruption of service.
Which type of attack involves overwhelming a SIP server with a high volume of requests to disrupt its operation?
A Denial of Service (DoS) attack involves overwhelming a SIP server with excessive requests, causing it to become unresponsive or fail. This disrupts normal service and prevents legitimate users from accessing the system.
To ensure secure communication in SIP, which of the following practices is recommended?
Implementing SIP over TLS and using secure authentication methods are recommended practices for ensuring secure communication in SIP. TLS encrypts signaling, while secure authentication methods protect against unauthorized access and identity spoofing.