CVE-2021-42086 Privilege escalation in n/a
High 8.8
Published
Updated
Check this codebase for CVE-2021-42086 and fix it if it is affected.
What it is: CVE-2021-42086 is a high-severity vulnerability in Zammad Zammad, published on 7 Oct 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-42086 in the wild and no public exploit code.
Affected product: Zammad Zammad. 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-2021-42086/ (Markdown: https://insights.sbomify.com/CVE-2021-42086/index.md)
An agent can escalate privileges to admin by modifying account data via a crafted request in Zammad.
- 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-2021-42086?
CVE-2021-42086 is a high-severity vulnerability in Zammad Zammad, published on 7 Oct 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An issue was discovered in Zammad before 4.1.1. An Agent account can modify account data, and gain admin access, via a crafted request.
Which versions are affected by CVE-2021-42086?
It affects 1 product.
Products include Zammad Zammad.
How do I fix CVE-2021-42086?
No fix has been published for CVE-2021-42086 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-42086 being exploited?
There is no known exploitation of CVE-2021-42086 in the wild and no public exploit code.
Other vulnerabilities in Zammad Zammad
Sources
Also known as GHSA-385m-q9q4-536h.