CVE-2021-31906 Information disclosure in n/a
Low 2.7
Published
Updated
Check this codebase for CVE-2021-31906 and fix it if it is affected.
What it is: CVE-2021-31906 is a low-severity vulnerability in Jetbrains Teamcity, published on 11 May 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-31906 in the wild and no public exploit code.
Affected product: Jetbrains Teamcity. 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-2021-31906/ (Markdown: https://insights.sbomify.com/CVE-2021-31906/index.md)
Insufficient audit logging for file uploads in TeamCity may allow attackers to hide malicious activity from administrators.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-31906?
CVE-2021-31906 is a low-severity vulnerability in Jetbrains Teamcity, published on 11 May 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
In JetBrains TeamCity before 2020.2.2, audit logs were not sufficient when an administrator uploaded a file.
Which versions are affected by CVE-2021-31906?
It affects 1 product.
Products include Jetbrains Teamcity.
How do I fix CVE-2021-31906?
No fix has been published for CVE-2021-31906 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-31906 being exploited?
There is no known exploitation of CVE-2021-31906 in the wild and no public exploit code.
Other vulnerabilities in Jetbrains Teamcity
Sources
Also known as GHSA-62g9-cqjr-29mv.