VoIP Infrastructure Penetration Test2022-01-19T11:51:39+03:00

VoIP Infrastructure Penetration Test

VoIP is a group of technologies and methodologies that enable the transmission of audio and multimedia content over enterprise local area networks or wide area networks. VoIP endpoints include dedicated desktop VoIP phones, softphone applications running on PCs and mobile devices, and WebRTC-enabled browsers. VoIP uses codecs to place audio into data packets, transmit packets over an ip network, and compress packets back to the other end of the connection. VoIP provides voice services over broadband and private networks and enables businesses to use a single voice and data network. VoIP also supports the flexibility of IP-based networks by enabling rapid failover following downtime, endpoints, and redundant communication between networks.

The VoIP infrastructure, standards, and VoIP endpoints typically use Telecommunication Union (ITU) standard codecs, such as G.711, which is the standard for transmitting uncompressed packets, or G.729, which is the standard of compressed packets.

What is VoIP Penetration Testing?

The fact that many companies use VoIP protocol to reduce costs and increase communication functionality brings the risk of attacking the corporate network.

VoIP Altyapısı Sızma Testleri

Predicting possible attack scenarios and preventing vulnerabilities in these scenarios are critical to network security. VoIP infrastructure infiltration tests provide a complete understanding of the security status of the VoIP infrastructure and allow the attacker to identify damage and risks to the system in the event of a possible attack.

As a result of penetration tests carried out by our experts; a comprehensive report including information about security vulnerabilities in the system, device information about the vulnerabilities, solution suggestions for the vulnerabilities detected. In this way, the system is secured against possible attacks by taking the necessary security measures.

VoIP Penetration Test Methodology

  • Establishing VLAN Connection From the Data Network to the Audio Network
  • Expanding Enumeration
  • Capturing SIP Authentication
  • Listening Calls
  • CallerID Spoofing
  • RTP Injection
  • Signal Management
  • Identification of Unsafe Services
  • Testing Default Credentials
  • Application-Level Security Vulnerabilities
  • Voice Mail attacks
  • Phone Firmware Analysis

Frequently Asked Questions About VoIP Infrastructure Penetration Test

Why Should I Have VoIP Infrastructure Penetration Test?2020-03-14T23:02:01+03:00

The VoIP (Voice Over Internet Protocol) infrastructure, which enables internal units to communicate with each other within your systems, is a system that does not have sufficient protection against external and internal attacks. There are vulnerabilities that allow complex attacks such as call tracking, call management, phone calls and even unauthorized recording of calls.

At the end of the VoIP Infrastructure Penetration Test, which will be carried out by our team of experts with high level technical knowledge, you will;

  • Understand the VoIP configurations and network designs in general terms,
  • Conduct studies on security vulnerabilities determined by our team,
  • Witness the risks of VoIP infrastructure in your system to be minimized.
What are VoIP Attacks?2020-03-14T23:01:43+03:00

Attacks on the VoIP infrastructure:

  • Eavesdropping
  • SIP Attacks
  • SIP Record Missing
  • Online Spam
  • Embedding Malware
  • Web Attacks
  • Viproy (VoIP penetration test kit)
  • SIPVicious
    • -svmap -svwar -svcrack -svreport
  • VoLTE Attacks
    • Sniffing VoLTE interfaces
    • Open Keys on GSM SIM
    • User Location manipulation
    • Manipulation of Circulation Information
    • Side Channel Attack

SiGploit (Telecom Signal Exploitation Framework)

What Protocols Does VoIP Infrastructure Use?2020-03-14T23:00:28+03:00

The most used protocols in VoIP infrastructure:

H.323: H.323 is data on the IP standard provided by the International Telecommunications Union Standardization Sector (ITU-T). As you can see, this standardization agency uses some letters to describe the scope based on the many criteria listed here:

H: For audiovisual and multimedia systems

G: For transmission systems and media

Q: For switching and signaling

T: For terminals for telematics services

H.323 is one of the oldest packet-based communication systems protocols. Thus, this protocol is stable. Current version v6. Cisco call manager is used by many vendors in many products such as NetMeeting and RadVision.H.323.

Skinny Client Control Protocol: The Skinny Call Control Protocol (SCCP) developed by Selsius is a Cisco-specific protocol. This dialog uses the following different message types:

0001: RegisterMessage

0002: IPportMessage

0081: RegisterAckMessage

RTP / RTCP: Real Time Protocol (RTP) is a transport protocol based on RFC 3550, especially over UDP.

Secure Real Time Transfer Protocol (SRTP): Secure Real Time Transfer Protocol (SRTP) is an application protocol based on RFC3711. SRTP offers advanced security features; Thus, it secures RTP through encryption with a keystream using the XOR process.

H.248 and Media Gateway Control Protocol: Media Gateway Control Protocol (MGCP) is a protocol developed by Cisco.

Session Initiation Protocol (SIP): Session Initiation Protocol (SIP) is a session management protocol based on the RFC 3261 protocol.

Go to Top