# CVE-2019-12634: Missing authorization in Cisco Unified Computing System Director

> Unauthenticated remote attackers can cause denial of service by logging off all users via an unauthenticated API call in Cisco UCS Director.

- **Severity:** High 8.6 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Aug 2019
- **Updated:** 19 Nov 2024
- **Also known as:** GHSA-rq9c-9fj9-7wh3

## What is CVE-2019-12634?

CVE-2019-12634 is a high-severity missing authorization vulnerability in Cisco Unified Computing System Director, published on 21 Aug 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to a missing authentication check in an API call. An attacker who can send a request to an affected system could cause all currently authenticated users to be logged off. Repeated exploitation could cause the inability to maintain a session in the web-based management portal.

Weakness: CWE-306 (Missing Authentication for Critical Functionality), CWE-264

## Which versions are affected by CVE-2019-12634?

It affects 3 products.


Products: Cisco Integrated Management Controller Supervisor, Cisco Ucs Director, Cisco Ucs Director Express for Big Data.

## How do I fix CVE-2019-12634?

No fix has been published for CVE-2019-12634 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-12634 being exploited?

There is no known exploitation of CVE-2019-12634 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Unified Computing System Director

- [CVE-2019-1935](https://insights.sbomify.com/CVE-2019-1935/): Hardcoded credentials in Cisco Unified Computing System Director (critical 9.8)
- [CVE-2019-1937](https://insights.sbomify.com/CVE-2019-1937/): Auth bypass in Cisco Unified Computing System Director (critical 9.8)
- [CVE-2019-1974](https://insights.sbomify.com/CVE-2019-1974/): Auth bypass in Cisco Unified Computing System Director (critical 9.8)
- [CVE-2015-6259](https://insights.sbomify.com/CVE-2015-6259/): Path traversal in n/a (critical 9.4)
- [CVE-2019-1864](https://insights.sbomify.com/CVE-2019-1864/): Cisco Integrated Management Controller Command Injection Vulnerability (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-12634 and fix it if it is affected.

What it is: CVE-2019-12634 is a high-severity missing authorization vulnerability in Cisco Unified Computing System Director, published on 21 Aug 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-12634 in the wild and no public exploit code.

Affected product: Cisco Unified Computing System Director. 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-2019-12634/ (Markdown: https://insights.sbomify.com/CVE-2019-12634/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-12634
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-12634
- OSV: https://osv.dev/vulnerability/CVE-2019-12634

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-12634/
Summaries are generated and may contain mistakes; the official description above is the record.