CVE-2024-23647
6.5 · MEDIUMOverview
CVE-2024-23647 is a medium-severity vulnerability affecting goauthentik authentik. It was published on January 30, 2024 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Authentik is an open-source Identity Provider. There is a bug in our implementation of PKCE that allows an attacker to circumvent the protection that PKCE offers. PKCE adds the code_challenge parameter to the authorization request and adds the code_verifier parameter to the token request. Prior to 2023.8.7 and 2023.10.7, a downgrade scenario is possible: if the attacker removes the code_challenge parameter from the authorization request, authentik will not do the PKCE check. Because of this bug, an attacker can circumvent the protection PKCE offers, such as CSRF attacks and code injection attacks. Versions 2023.8.7 and 2023.10.7 fix the issue.
Remediation
Check the references section for vendor advisories and patches from goauthentik. Update authentik to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| goauthentik | authentik | >= 0, < 2023.8.7 | Affected |
References
Frequently Asked Questions
What is CVE-2024-23647?
CVE-2024-23647 is a medium-severity vulnerability affecting goauthentik authentik. It was published on January 30, 2024 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2024-23647?
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2024-23647?
Check the references section for vendor advisories and patches from goauthentik. Update authentik to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2024-23647?
CyberStrike's AI-powered security agents can automatically detect CVE-2024-23647 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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