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CRM Web Application Data Protection

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Case Studies
BerettalabsCase Studies

CRM Web Application – Access Control & Data Protection

  • Web
  • API
CASE STUDIES
BerettalabsCases

CRM Web Application – Access Control & Data Protection

Berettalabs Is Equiped With Certified Professionals (OSCP, CEH, CISSP) With Extensive Experience In Penetration Testing. Successfully Done Penetration Testing of Our Client's Ecommerce Platform.

Berettalabs
CASE STUDIES

Client

A SaaS-based Customer Relationship Management (CRM) provider with over 50,000 business users handling customer data, sales pipelines, and internal communication.

Objective

The client wanted to assess their web application security for potential data leaks, privilege escalation, and API security flaws.

Testing Approach:

Black-box testing to simulate an external attacker. Gray-box testing using a standard user account to identify privilege escalation issues. API security testing to check authentication mechanisms.

Findings & Exploitation:

Vulnerability : Broken Access Control in User Management Module

  • Exploit: A regular user could change the user_role parameter in an API request to elevate their privileges to an administrator.
  • Impact: Unauthorized users could view, modify, or delete customer data and user accounts.

Vulnerability: Sensitive Data Exposure in CRM Reports

  • Exploit: CRM reports were being cached and accessible without authentication through direct URLs.
  • Impact: Exposed sales records, customer details, and financial transactions.

Vulnerability: Weak Session Management

  • Exploit: The CRM platform did not invalidate session cookies after logout.
  • Impact: Attackers with stolen session tokens could maintain persistent access even after the user logged out.

Remediation & Outcome:

Access Control Fix: Implemented role-based access control (RBAC) and enforced server-side permission checks.
Data Protection Fix: Disabled caching of sensitive reports and enforced authenticated access to all files.
Session Fix: Implemented secure session management policies, including session expiration and logout enforcement.

Key Outcome:

The CRM provider eliminated privilege escalation risks, improved GDPR compliance, and secured customer data.


— Berettalabs