GHSA-mv73-f69x-444p

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GHSA-mv73-f69x-444p

Summary: Go Fiber CSRF Token Validation Vulnerability

Details: A Cross-Site Request Forgery (CSRF) vulnerability has been identified in the application, which allows an attacker to obtain tokens and forge malicious requests on behalf of a user. This can lead to unauthorized actions being taken on the user's behalf, potentially compromising the security and integrity of the application. ## Vulnerability Details The vulnerability is caused by improper validation and enforcement of CSRF tokens within the application. The following issues were identified: 1. **Lack of Token Association**: The CSRF token was validated against tokens in storage but was not tied to the original requestor that generated it, allowing for token reuse. ## Remediation To remediate this vulnerability, it is recommended to take the following actions: 1. **Update the Application**: Upgrade the application to a fixed version with a patch for the vulnerability. 2. **Implement Proper CSRF Protection**: Review the updated documentation and ensure your application's CSRF protection mechanisms follow best practices. 4. **Choose CSRF Protection Method**: Select the appropriate CSRF protection method based on your application's requirements, either the Double Submit Cookie method or the Synchronizer Token Pattern using sessions. 5. **Security Testing**: Conduct a thorough security assessment, including penetration testing, to identify and address any other security vulnerabilities. ## Defence-in-depth Users should take additional security measures like captchas or Two-Factor Authentication (2FA) and set Session cookies with SameSite=Lax or SameSite=Strict, and the Secure and HttpOnly attributes.

References: https://github.com/gofiber/fiber/security/advisories/GHSA-mv73-f69x-444p, https://nvd.nist.gov/vuln/detail/CVE-2023-45141, https://github.com/gofiber/fiber/commit/8c3916dbf4ad2ed427d02c6eb63ae8b2fa8f019a, https://github.com/gofiber/fiber/commit/b50d91d58ecdff2a330bf07950244b6c4caf65b1, https://github.com/gofiber/fiber