CVE-2020-16991 Azure Sphere Unsigned Code Execution Vulnerability
High 7.3
Published
Updated
Check this codebase for CVE-2020-16991 and fix it if it is affected.
What it is: CVE-2020-16991 is a high-severity vulnerability in Microsoft Azure Sphere, published on 11 Nov 2020. 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-2020-16991 in the wild and no public exploit code.
Affected product: Microsoft Azure Sphere. 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-2020-16991/ (Markdown: https://insights.sbomify.com/CVE-2020-16991/index.md)
Attackers can bypass security restrictions to execute unsigned code on Azure Sphere devices, compromising system integrity.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-16991?
CVE-2020-16991 is a high-severity vulnerability in Microsoft Azure Sphere, published on 11 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Azure Sphere Unsigned Code Execution Vulnerability
Which versions are affected by CVE-2020-16991?
It affects 1 product.
Products include Microsoft Azure Sphere.
How do I fix CVE-2020-16991?
No fix has been published for CVE-2020-16991 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-16991 being exploited?
There is no known exploitation of CVE-2020-16991 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Azure Sphere
Sources
Also known as GHSA-5wcg-gp2m-75xf.