VoIP technology enables any mobile device service to operate and deliver voice communication using the internet protocol while the PSTN implements voice communication over the landline telephone calls between two endpoints. Similar to other networks, voice communications are prone to security attacks. Organizations are often unaware of the security posture concerning their VoIP and PSTN infrastructure. They are not adequately able to protect from the threats that come with sensitive devices and networks.
How it works?
Network Penetration testing involves performing a penetration test on infrastructure to check the defences and security posture of an organisation from a remote attacker’s perspective. Internal Penetration testing involves performing a penetration test on an asset within an intranet or VLAN of an organisation from a malicious insider perspective.
Gather information about IP of the servers, VoIP devices, PSTN’s Signalling System with tools such as Shodan, SVmap, etc.
Scan and discover information about the services running in the environment.
Discover the vulnerabilities in the services using tools such as Nessus, Viproy.
Exploit the vulnerabilities and gain leverage over the services using tools such as Metasploit.
Prepare a comprehensive report of all the vulnerabilities which examine the strength, risk, and standards associated with the security posture of the infrastructure. Provide assistance to develop mitigation strategies based on the observations made in the assessment.
Reporting & Support
The most frequently identified vulnerabilities are not very different from the OWASP top 10 lists.
Attacking VoIP authentication
Traffic capture and Eavesdropping
Attacking SS7 components
Identifying DoS vulnerabilities
Caller ID impersonation
Do you know?
of the network access we achieved was through outdated versions and default credentials.
of the network access we attained was due to misconfigurations in services being used.
of the network access resulted due to unauthenticated access.
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