CVE-2024-39327

Summary

Incorrect Access Control vulnerability in Atos Eviden IDRA before 2.6.1 could allow the possibility to obtain CA signing in an illegitimate way.

Severity

  • Base Score: 9.9
  • Exploitability Score: 3.1
  • Impact Score: 6.0
  • Exploitable: 0

Details

The vulnerability stems from incorrect access control within Atos Eviden IDRA versions prior to 2.6.1. This flaw potentially allows an attacker to circumvent intended security measures and illegitimately obtain CA (Certificate Authority) signing privileges. Successful exploitation could lead to the generation of fraudulent certificates, enabling various malicious activities such as man-in-the-middle attacks, code signing bypass, and impersonation of trusted entities.

Remediation

The primary remediation strategy is to upgrade Atos Eviden IDRA to version 2.6.1 or later. This upgrade contains the necessary fixes to address the incorrect access control vulnerability and prevent unauthorized CA signing.

Steps to remediate:

  1. Assess the current IDRA version: Determine the currently installed version of Atos Eviden IDRA.
  2. Plan the upgrade: Review the Atos Eviden documentation for the upgrade process, including any potential compatibility issues or prerequisites. Plan the upgrade during a maintenance window to minimize disruption.
  3. Backup: Create a full backup of the IDRA system, including configurations and databases, before initiating the upgrade.
  4. Apply the update: Follow the official Atos Eviden upgrade instructions to update to version 2.6.1 or later.
  5. Verification: After the upgrade, thoroughly test the IDRA system to confirm that the update was successful and that the vulnerability is no longer present. Verify certificate generation and access control mechanisms are functioning as expected.
  6. Monitoring: Continuously monitor the IDRA system for any suspicious activity or signs of unauthorized certificate generation. Implement robust logging and alerting mechanisms.
  7. Principle of Least Privilege: Ensure that all users and services are granted only the minimum necessary privileges to perform their intended functions. Review and update access control policies as needed.

Assigner

Date

  • Published Date: 2025-02-18 17:15:18
  • Updated Date: 2025-02-18 17:15:18

More Details

CVE-2024-39327