CVE-2023-35373 Mono Authenticode Validation Spoofing Vulnerability
Medium 5.3
Published
Updated
Check this codebase for CVE-2023-35373 and fix it if it is affected.
What it is: CVE-2023-35373 is a medium-severity vulnerability in Microsoft Mono 6.12.0, published on 11 Jul 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-35373 in the wild and no public exploit code.
Affected product: Microsoft Mono 6.12.0. 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-2023-35373/ (Markdown: https://insights.sbomify.com/CVE-2023-35373/index.md)
Attackers can spoof Authenticode validation in Mono, bypassing security checks intended to verify code integrity.
- 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-2023-35373?
CVE-2023-35373 is a medium-severity vulnerability in Microsoft Mono 6.12.0, published on 11 Jul 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Mono Authenticode Validation Spoofing Vulnerability
Weakness: CWE-347
Which versions are affected by CVE-2023-35373?
It affects 1 product.
Products include Microsoft Mono.
How do I fix CVE-2023-35373?
No fix has been published for CVE-2023-35373 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-35373 being exploited?
There is no known exploitation of CVE-2023-35373 in the wild and no public exploit code.
Sources
Also known as GHSA-34j3-g2w8-qhjx.