CVE-2021-43882 Microsoft Defender for IoT Remote Code Execution Vulnerability
Critical 9.0
Published
Updated
Check this codebase for CVE-2021-43882 and fix it if it is affected.
What it is: CVE-2021-43882 is a critical vulnerability in Microsoft Defender for IoT, published on 15 Dec 2021. 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-2021-43882 in the wild and no public exploit code.
Affected product: Microsoft Defender for IoT. 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-2021-43882/ (Markdown: https://insights.sbomify.com/CVE-2021-43882/index.md)
An attacker can achieve remote code execution in Microsoft Defender for IoT due to improper certificate validation.
- 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-2021-43882?
CVE-2021-43882 is a critical vulnerability in Microsoft Defender for IoT, published on 15 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Microsoft Defender for IoT Remote Code Execution Vulnerability
Weakness: CWE-295
Which versions are affected by CVE-2021-43882?
It affects 1 product.
Products include Microsoft Defender for Iot.
How do I fix CVE-2021-43882?
No fix has been published for CVE-2021-43882 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-43882 being exploited?
There is no known exploitation of CVE-2021-43882 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Defender for IoT
- CVE-2021-42311 Microsoft Defender for IoT Remote Code Execution Vulnerability
- CVE-2021-42313 Microsoft Defender for IoT Remote Code Execution Vulnerability
- CVE-2024-38089 Microsoft Defender for IoT Elevation of Privilege Vulnerability
- CVE-2024-21323 Microsoft Defender for IoT Remote Code Execution Vulnerability
- CVE-2024-29053 Microsoft Defender for IoT Remote Code Execution Vulnerability
Sources
Also known as GHSA-vf2w-cq9r-cwvw.