Voice over IP (VoIP) Penetration Test
Trusted Cyber Security Experts
25+ Years Industry Experience
Ethical, Professional & Pragmatic
A VoIP Penetration Test is key to identifying the cyber risks that could affect your organisation’s telephone and conferencing systems so you can reduce security and privacy risks.
While a correctly configured Voice over IP (VoIP) network significantly increases the security of your voice calls, there are many security weaknesses affecting VoIP that allow a malicious insider or an Internet-based attacker to compromise your VoIP infrastructure remotely. The greatest risks include them running up enormous phone bills or eavesdropping on telephone calls made both within your organisation and to your suppliers and customers.
A VoIP Penetration Test of your telephony environment will give you peace of mind that calls within your organisation are being securely managed, that only authorised people and handsets are able to place calls and that your users voicemail cannot be accessed maliciously.
SecureTeam have extensive experience in both securing and managing corporate VoIP environments and have worked with industry-standard VoIP technologies, including Asterisk, Avaya, Cisco, Microsoft & Yealink.
What types of vulnerabilities can a Voice over IP (VoIP) Penetration Test identify?
Conducting a targeted penetration test of your Voice over IP (VoIP) infrastructure provides you with an insight into the vulnerabilities that may be discovered and exploited by an attacker. Some common vulnerabilities that we regularly find during VoIP penetration testing include:
- Unauthorised calling
- Sensitive information disclosure
- Call eavesdropping vulnerabilities
- Voicemail access possible
- Missing security updates & patches
- Weak call encryption ciphers
- Default or weak passwords on handsets or extensions
- Inadequate network segregation
Testing Process & Methodology
A targeted VoIP penetration test will be conducted on the VoIP (Voice over IP) network that is currently in use within the organisation.
Using a combination of automated and manual testing, our consultants will perform the following assessments on your VoIP infrastructure to ensure it has been deployed and configured securely:
- Inspection of the SIP network traffic to ensure that the information sent during the initiation and ‘teardown’ of VoIP calls is secure.
- Analysis of voice network traffic sent during calls to ensure it is encrypted.
- Review of handset provisioning process to ensure the handset configuration cannot be modified.
- Check if unauthorised handsets or ‘softphones’ can be connected to the VoIP network.
- Network Segregation Test to ensure VoIP network is adequately segregated from the corporate LAN (including any links to managed service providers).
- Vulnerability Assessment of VoIP infrastructure components.
As part of the VoIP penetration test, the network traffic that is sent between the handsets and the VoIP controller during phone calls will be analysed to identify vulnerabilities that may allow a malicious user to eavesdrop on the calls that are being made, inject malicious network traffic into handsets or the call manager.
All penetration testing that we conduct is carried out in line with globally-recognised standards, such as the Penetration Testing Execution Standard (PTES) and the Open Source Security Testing Methodology Manual (OSSTMM). In addition to this, as a member of the Council of Registered Ethical Security Testers (CREST), we conduct our testing and consultancy to the highest, industry-recognised standards and ethics.
Preparing for your VoIP Penetration Test
A signed & completed Testing Consent Form (TCF)
List of IP addresses or network subnets that are in scope of testing
Two desktop VoIP phones, with each phone being registered as a separate extension number
If a configuration review is desired, a user account should be provided that has access to all settings within the Call Manager / VoIP Server.
Reporting
Our clear & concise penetration test reports enable everyone in your organisation to understand the vulnerabilities that have been identified and the real-world risk that your systems and data are exposed to. Our reports include:
- A “board-level friendly” Executive Summary
- Comprehensive, evidence-based vulnerability reporting
- Risk-based vulnerability ranking with CVSS Scoring
- Technical references and links for further research by your technical team
Debrief Call
Once you have received our final report, you have the option of attending a conference call between the consultant(s) involved in delivering your project and individuals within your organisation who you feel would benefit from a more in-depth discussion of the report’s findings.
After Care
Once our consultancy engagement is complete and our final report has been delivered to you, our consultancy team remain available to you indefinitely for any questions you may have surrounding the report’s findings or our consultancy engagement with you.
Why Choose SecureTeam?
- UK-based Consultancy Team
- Customer Focused
- Security Vetted Consultants
- Ethical Scoping & Pricing
- 25+ Years Industry Experience
- ISO 9001 & 27001 Certified
- CREST Accredited
- Comprehensive Reporting
Ready to take your cyber security to the next level ?
Trusted Cyber Security Experts
As an organisation, SecureTeam has provided penetration testing and cyber security consultancy to public & private sector organisations both in the United Kingdom and worldwide. We pride ourselves in taking a professional, pragmatic and customer-centric approach, delivering expert cyber security consultancy – on time and within budget – regardless of the size of your organisation.
Our customer base ranges from small tech start-ups through to large multi-national organisations across nearly every sector – in nearly every continent. Some of the organisation’s who have trusted SecureTeam as their cyber security partner include:
Customer Testimonials
"Within a very tight timescale, SecureTeam managed to deliver a highly professional service efficiently. The team helped the process with regular updates and escalation where necessary. Would highly recommend"
IoT Solutions Group Limited
“First class service as ever. We learn something new each year! Thank you to all your team.”
Royal Haskoning DHV
“We’ve worked with SecureTeam for a few years to conduct our testing. The team make it easy to deal with them; they are attentive and explain detailed reports in a jargon-free way that allows the less technical people to understand. I wouldn’t work with anyone else for our cyber security.”
Capital Asset Management
“SecureTeam provided Derbyshire's Education Data Hub with an approachable and professional service to ensure our schools were able to successfully certify for Cyber Essentials. The team provided a smooth end-to-end service and were always on hand to offer advice when necessary.”
Derbyshire County Council
“A very efficient, professional, and friendly delivery of our testing and the results. You delivered exactly what we asked for in the timeframe we needed it, while maintaining quality and integrity. A great job, done well.”
AMX Solutions
“We were very pleased with the work and report provided. It was easy to translate the provided details into some actionable tasks on our end so that was great. We always appreciate the ongoing support.”
Innovez LtdGet in touch today
If you’d like to see how SecureTeam can take your cybersecurity posture to the next level, we’d love to hear from you, learn about your requirements and then send you a free quotation for our services.
Our customers love our fast-turnaround, “no-nonsense” quotations – not to mention that we hate high-pressure sales tactics as much as you do.
We know that every organisation is unique, so our detailed scoping process ensures that we provide you with an accurate quotation for our services, which we trust you’ll find highly competitive.
Get in touch with us today and a member of our team will be in touch to provide you with a quotation.
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“We were very impressed with the service, I will say, the vulnerability found was one our previous organisation had not picked up, which does make you wonder if anything else was missed.”
Aim Ltd Chief Technology Officer (CTO)