EresusSecurity

Source Code Review
— Telecommunications

Source Code Review engineered for the Telecommunications threat landscape. Every finding is backed by proof-of-concept evidence.

Free Scoping Call

Telecommunications Vulnerability Intelligence

Telecom operators manage the backbone of digital connectivity. Compromised telecom infrastructure enables mass surveillance, call interception, and disruption of emergency services.

SS7/Diameter Protocol Exploitation

CriticalSS7 Attacks (Demonstrated at DEF CON)

Legacy signaling protocol vulnerabilities enabling call interception, SMS redirection, location tracking, and two-factor authentication bypass across the global telecom network.

5G Network Slicing Isolation Failures

Critical

Insufficient isolation between 5G network slices allowing cross-slice data leakage, resource exhaustion, and unauthorized access to enterprise-dedicated network segments.

SIM Swapping and eSIM Hijacking

High

Social engineering and API exploitation enabling unauthorized SIM profile transfers, account takeover, and interception of SMS-based authentication codes.

BSS/OSS Platform Vulnerabilities

HighCVE-2024-1709

Business and Operations Support Systems with SQL injection, privilege escalation, and API authorization flaws enabling access to subscriber data and billing manipulation.

Attack Surface

  • Core network elements
  • BSS/OSS platforms
  • Customer self-service portals
  • 5G RAN infrastructure
  • IoT connectivity platforms
  • CDN and edge compute

Mandatory Regulations

EU ePrivacy DirectiveGDPRFCC RulesBTK (Turkey)3GPP Security

Proof-Driven Methodology

01

Intelligence

Attack surface mapping & asset enumeration

02

Vulnerability Scanning

Penetration testing beyond automated scanners

03

Manual Verification

PoC validation for every finding

04

Remediation Support

Remediation code + free retest

Frequently Asked Questions

What methodologies do you use?

We base our testing on OWASP Testing Guide, PTES, NIST SP 800-115, and OSSTMM frameworks.

Can we review previous work examples?

Due to NDA constraints we cannot share client names, but we can provide redacted sector-specific case studies and proof summaries.

Do you test remotely or on-site?

Most tests are conducted remotely via VPN. For internal network and physical security tests, we deploy on-site teams.

Why Eresus Security?

Proof-Driven Reporting

Every finding is validated with a real exploit. No scanner noise — only proven risks.

Offensive Security Expertise

Specialized team in AI security, API pentesting, Red Team operations, and cloud security review.

Retest Support

Fixes are revalidated within the agreed engagement scope. Remediation guidance and developer-friendly notes are included.

Evidence-Ready Deliverables

Report format designed to support internal review, remediation tracking, and evidence-oriented workflows.

Validate Your Security Posture

Don't rely on scanner outputs. We execute the same techniques real attackers use — in a controlled environment, for you.

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