CVE-2016-4426 Information disclosure in zulip
Medium 4.3
Published
Updated
Check this codebase for CVE-2016-4426 and fix it if it is affected.
What it is: CVE-2016-4426 is a medium-severity vulnerability in zulip, published on 28 Jul 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2016-4426 in the wild and no public exploit code.
Affected product: zulip. 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-2016-4426/ (Markdown: https://insights.sbomify.com/CVE-2016-4426/index.md)
Attackers can access bot API keys of other users in the same realm, potentially leading to unauthorized actions or data access.
- 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-2016-4426?
CVE-2016-4426 is a medium-severity vulnerability in zulip, published on 28 Jul 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In zulip before 1.3.12, bot API keys were accessible to other users in the same realm.
Weakness: CWE-284
Which versions are affected by CVE-2016-4426?
It affects 1 product.
Products include Zulip Zulip.
How do I fix CVE-2016-4426?
No fix has been published for CVE-2016-4426 yet. Limit exposure of the affected software until one is available.
Is CVE-2016-4426 being exploited?
There is no known exploitation of CVE-2016-4426 in the wild and no public exploit code.
Other vulnerabilities in zulip
- CVE-2021-43799 RabbitMQ exposes ports with weak default secrets in Zulip Server
- CVE-2022-35962 Crafted link in Zulip message can cause disclosure of credentials
- CVE-2016-4427 Auth bypass in zulip
- CVE-2021-3866 Cross-site Scripting (XSS) - Stored in zulip/zulip
- CVE-2023-28623 Unauthorized user can register an account in specific configurations in Zulip
Sources
Also known as GHSA-xv4m-3w46-f9wh.