RED TEAM SERVICE

TelecomPenetration Testing

Comprehensive security assessment of SS7, Diameter, GTP, and 5G infrastructure following GSMA guidelines.

SS7

Protocols

GSMA

Compliant

5G

Ready

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Telecom Network

What We Test

Comprehensive coverage from legacy SS7 to 5G networks

SS7/MAP Testing

Location tracking, SMS interception, call redirect, UpdateLocation attacks

Diameter Testing

CLR/IDR attacks, ULR spoofing, authentication bypass, charging fraud

GTP Security

Tunnel hijacking, traffic interception, APN manipulation, session theft

Core Network

EPC/5GC testing, HSS/UDM security, MME/AMF vulnerabilities

RAN Security

Base station attacks, IMSI catching, rogue eNB/gNB detection

SIM Security

UICC/eSIM testing, applet vulnerabilities, remote provisioning

VoLTE/VoNR

IMS security, SIP vulnerabilities, voice interception, fraud

GSMA Compliance

FS.11, FS.19, FS.20 requirements, IR.82, IR.88 guidelines

OUR APPROACH

Testing Methodology

Following GSMA security guidelines for comprehensive telecom security assessment.

1
DiscoveryDuration: 2 days

Network Reconnaissance

Map telecom architecture including SS7 point codes, Global Titles, Diameter realms, and GTP endpoints.

Key Activities

  • SCCP traceroute mapping
  • GT enumeration
  • Diameter peer discovery
  • GTP-C scanning
  • IPX partner ID
Tools
SigPloitSS7MAPerDiameterPy
Deliverables
Network topologyAsset inventoryAttack surface
2
Legacy SignalingDuration: 3 days

SS7 Security Testing

Test SS7/MAP vulnerabilities including location tracking, SMS interception, and subscriber hijacking.

Key Activities

  • Cat 1: ATI/PSI tracking
  • Cat 2: SRI-SM intercept
  • Cat 3: UpdateLocation
  • MAP filtering bypass
Tools
SigPloitYateBTSOsmocom
Deliverables
Location PoCSMS intercept demoVuln report
3
4G/5G SignalingDuration: 2 days

Diameter Protocol Testing

Test Diameter interfaces for authentication bypass, de-registration, and charging fraud.

Key Activities

  • CLR/IDR attacks
  • ULR spoofing
  • AIR/AIA bypass
  • CCR manipulation
Tools
FreeDiameterSeagull
Deliverables
Attack matrixProtocol analysis
4
Data PlaneDuration: 2 days

GTP Security Assessment

Evaluate GTP-C/U security including tunnel hijacking and traffic interception.

Key Activities

  • GTP-C hijacking
  • GTP-U sniffing
  • APN spoofing
  • Session theft
Tools
GTPHubOpen5GSWireshark
Deliverables
GTP analysisTraffic samples
5
DeliverablesDuration: 1 day

Reporting

Comprehensive report with GSMA FS.11/FS.19 mapping and prioritized remediation.

Key Activities

  • CVSS 3.1 scoring
  • GSMA mapping
  • Risk prioritization
Tools
Custom framework
Deliverables
Executive reportTechnical reportRoadmap
DELIVERABLES

Sample Report Structure

Comprehensive report with detailed findings, evidence, and remediation aligned with GSMA guidelines.

Assessment Scope

Core Network, SS7, Diameter, GTP

Test Duration

10 business days

Critical Findings

6 vulnerabilities

High Risk Findings

12 vulnerabilities

Overall Risk Rating

CRITICAL

GSMA FS.11 Compliance

Non-Compliant (8 requirements failed)

Key Recommendation

Immediate remediation required. SS7/Diameter vulnerabilities allow subscriber tracking, call interception, and SMS theft. Regulatory notification may be required.

Secure Your Telecom Network

Get comprehensive telecom penetration testing following GSMA FS.11 and FS.19 guidelines.

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