CAS-002 · Question #730
In which of the following attacks does an attacker intercept call-signaling SIP message traffic and masquerade as the calling party to the called party and vice-versa?
The correct answer is B. Man-in-the-middle. VoIP is more vulnerable to man-in-the-middle attacks. In the man-in-the-middle attack, the attacker intercepts call-signaling SIP message traffic and masquerades as the calling party to the called party, and vice-versa. The attacker can hijack calls via a redirection server…
Question
In which of the following attacks does an attacker intercept call-signaling SIP message traffic and masquerade as the calling party to the called party and vice-versa?
Options
- ACall tampering
- BMan-in-the-middle
- CEavesdropping
- DDenial of Service
How the community answered
(18 responses)- A6% (1)
- B89% (16)
- D6% (1)
Explanation
VoIP is more vulnerable to man-in-the-middle attacks. In the man-in-the-middle attack, the attacker intercepts call-signaling SIP message traffic and masquerades as the calling party to the called party, and vice-versa. The attacker can hijack calls via a redirection server after gaining Answer option A is incorrect. Call tampering involves tampering a phone call in progress. Answer option D is incorrect. DoS attacks occur by flooding a target with unnecessary SIP call- signaling messages. It degrades the service and causes calls to drop prematurely and halts call Answer option C is incorrect. In eavesdropping, hackers steal credentials and other information.
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