CVE-2024-21381 Microsoft Azure Active Directory B2C Spoofing Vulnerability
Medium 6.8
Published
Updated
Check this codebase for CVE-2024-21381 and fix it if it is affected.
What it is: CVE-2024-21381 is a medium-severity vulnerability in Microsoft Entra, published on 13 Feb 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-21381 in the wild and no public exploit code.
Affected product: Microsoft Entra. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2024-21381/ (Markdown: https://insights.sbomify.com/CVE-2024-21381/index.md)
Attackers can exploit a spoofing vulnerability in Azure AD B2C to bypass security controls, requiring a vendor patch.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-21381?
CVE-2024-21381 is a medium-severity vulnerability in Microsoft Entra, published on 13 Feb 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Microsoft Azure Active Directory B2C Spoofing Vulnerability
Weakness: CWE-352
Which versions are affected by CVE-2024-21381?
It affects 1 product.
Products include Microsoft Azure Active Directory.
How do I fix CVE-2024-21381?
No fix has been published for CVE-2024-21381 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-21381 being exploited?
There is no known exploitation of CVE-2024-21381 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Entra
Sources
Also known as GHSA-v87j-jxhf-9vq2.