# CVE-2021-3763: Missing authorization in AMQ Broker

> An authenticated user can access restricted management console metadata due to incorrect role binding checks, leading to information disclosure.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Aug 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-c78g-8qvx-mmh9

## What is CVE-2021-3763?

CVE-2021-3763 is a medium-severity missing authorization vulnerability in AMQ Broker, published on 23 Aug 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A flaw was found in the Red Hat AMQ Broker management console in version 7.8 where an existing user is able to access some limited information even when the role the user is assigned to should not be allow access to the management console. The main impact is to confidentiality as this flaw means some role bindings are incorrectly checked, some privileged meta information such as queue names and configuration details are disclosed but the impact is limited as not all information is accessible and there is no affect to integrity.

Weakness: CWE-863 (Incorrect Authorization)

## Which versions are affected by CVE-2021-3763?

It affects 1 product.


Products: Redhat Amq Broker.

## How do I fix CVE-2021-3763?

No fix has been published for CVE-2021-3763 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-3763 being exploited?

There is no known exploitation of CVE-2021-3763 in the wild and no public exploit code.

## Other vulnerabilities in AMQ Broker

- [CVE-2022-1833](https://insights.sbomify.com/CVE-2022-1833/): Privilege escalation in AMQ Broker Operator (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-3763 and fix it if it is affected.

What it is: CVE-2021-3763 is a medium-severity missing authorization vulnerability in AMQ Broker, published on 23 Aug 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-2021-3763 in the wild and no public exploit code.

Affected product: AMQ Broker. 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-2021-3763/ (Markdown: https://insights.sbomify.com/CVE-2021-3763/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-3763
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-3763
- OSV: https://osv.dev/vulnerability/CVE-2021-3763

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-3763/
Summaries are generated and may contain mistakes; the official description above is the record.