CVE-2024-25128

Workarounds

If upgrade is not possible add the following to your config:

from flask import flash, redirect
from flask_appbuilder import expose
from flask_appbuilder.security.sqla.manager import SecurityManager
from flask_appbuilder.security.views import AuthOIDView
from flask_appbuilder.security.forms import LoginForm_oid

basedir = os.path.abspath(os.path.dirname(__file__))


class FixedOIDView(AuthOIDView):
    @expose("/login/", methods=["GET", "POST"])
    def login(self, flag=True):
        form = LoginForm_oid()
        if form.validate_on_submit():
            identity_url = None
            for provider in self.appbuilder.sm.openid_providers:
                if provider.get("url") == form.openid.data:
                    identity_url = form.openid.data
            if identity_url is None:
                flash(self.invalid_login_message, "warning")
                return redirect(self.appbuilder.get_url_for_login)
        return super().login(flag=flag)

class FixedSecurityManager(SecurityManager):
    authoidview = FixedOIDView


FAB_SECURITY_MANAGER_CLASS = "config.FixedSecurityManager"

When Flask-AppBuilder is set to AUTH_TYPE AUTH_OID, allows an attacker to forge an HTTP request, that could deceive the backend into using any requested OpenID service. This vulnerability could grant an attacker unauthorised privilege access if a custom OpenID service is deployed by the attacker and accessible by the backend.

This vulnerability is only exploitable when the application is using the old (deprecated 10 years ago) OpenID 2.0 authorization protocol (which is very different from the popular OIDC - Open ID Connect - popular protocol used today). Currently, this protocol is regarded as legacy, with significantly reduced usage and not supported for several years by major authorization providers.

The application does not adequately verify the identity of a user, device, or process before granting access. Typical impact: unauthorized access to functions or data reserved for authenticated parties.

CVE-2024-25128 has a CVSS score of 9.1 (Critical). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (4.3.11); upgrading removes the vulnerable code path.

Kodem intelligence

Upgrade to Flask-AppBuilder 4.3.11

1. What is CVE-2024-25128? CVE-2024-25128 is a critical-severity improper authentication vulnerability in Flask-AppBuilder (pip), affecting versions < 4.3.11. It is fixed in 4.3.11. The application does not adequately verify the identity of a user, device, or process before granting access.
2. How severe is CVE-2024-25128? CVE-2024-25128 has a CVSS score of 9.1 (Critical). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which versions of Flask-AppBuilder are affected by CVE-2024-25128? Flask-AppBuilder (pip) versions < 4.3.11 is affected.
4. Is there a fix for CVE-2024-25128? Yes. CVE-2024-25128 is fixed in 4.3.11. Upgrade to this version or later.
5. Is CVE-2024-25128 exploitable, and should I be worried? Whether CVE-2024-25128 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2024-25128 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2024-25128? Upgrade Flask-AppBuilder to 4.3.11 or later.