# CVE-2018-15404: Denial of service in Cisco Unified Computing System Director

> Authenticated attackers can cause denial of service in Cisco UCS Director by sending crafted HTTP requests that oversubscribe system resources.

- **Severity:** Medium 6.5 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **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:** 5 Oct 2018
- **Updated:** 26 Nov 2024
- **Also known as:** GHSA-v4j9-fcwh-hm62

## What is CVE-2018-15404?

CVE-2018-15404 is a medium-severity denial of service vulnerability in Cisco Unified Computing System Director, published on 5 Oct 2018. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability in the web interface of Cisco Integrated Management Controller (IMC) Supervisor and Cisco UCS Director could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected system. The vulnerability is due to insufficient restrictions on the size or total amount of resources allowed via the web interface. An attacker who has valid credentials for the application could exploit this vulnerability by sending a crafted or malformed HTTP request to the web interface. A successful exploit could allow the attacker to cause oversubscription of system resources or cause a component to become unresponsive, resulting in a DoS condition.

Weakness: CWE-770 (Allocation of Resources Without Limits or Throttling), CWE-399

## Which versions are affected by CVE-2018-15404?

It affects 2 products.


Products: Cisco Integrated Management Controller Supervisor, Cisco Unified Computing System Director.

## How do I fix CVE-2018-15404?

No fix has been published for CVE-2018-15404 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-15404 being exploited?

There is no known exploitation of CVE-2018-15404 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-2018-15404 and fix it if it is affected.

What it is: CVE-2018-15404 is a medium-severity denial of service vulnerability in Cisco Unified Computing System Director, published on 5 Oct 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-15404 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-2018-15404/ (Markdown: https://insights.sbomify.com/CVE-2018-15404/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-15404
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-15404
- OSV: https://osv.dev/vulnerability/CVE-2018-15404

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-15404/
Summaries are generated and may contain mistakes; the official description above is the record.