CVE-2023-21531 Azure Service Fabric Container Elevation of Privilege Vulnerability
High 7.0
Published
Updated
Check this codebase for CVE-2023-21531 and fix it if it is affected.
What it is: CVE-2023-21531 is a high-severity vulnerability in Microsoft Azure Service Fabric 8.2, published on 10 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-21531 in the wild and no public exploit code.
Affected product: Microsoft Azure Service Fabric 8.2. 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-2023-21531/ (Markdown: https://insights.sbomify.com/CVE-2023-21531/index.md)
Attackers can elevate privileges within Azure Service Fabric containers, potentially gaining unauthorized control over the environment.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-21531?
CVE-2023-21531 is a high-severity vulnerability in Microsoft Azure Service Fabric 8.2, published on 10 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Azure Service Fabric Container Elevation of Privilege Vulnerability
Which versions are affected by CVE-2023-21531?
It affects 1 product.
Products include Microsoft Azure Service Fabric.
How do I fix CVE-2023-21531?
No fix has been published for CVE-2023-21531 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-21531 being exploited?
There is no known exploitation of CVE-2023-21531 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Azure Service Fabric 8.2
- CVE-2023-23383 Service Fabric Explorer Spoofing Vulnerability
- CVE-2024-43480 Azure Service Fabric for Linux Remote Code Execution Vulnerability
- CVE-2023-36868 Azure Service Fabric on Windows Information Disclosure Vulnerability
- CVE-2022-35829 Service Fabric Explorer Spoofing Vulnerability
- CVE-2025-21195 Azure Service Fabric Runtime Elevation of Privilege Vulnerability
Sources
Also known as GHSA-v3ch-w844-fcpj.