# CVE-2020-3567: Cisco Industrial Network Director Denial of Service Vulnerability

> Authenticated attackers can cause permanent denial of service on Cisco Industrial Network Director via crafted REST API requests.

- **Severity:** Medium 6.5 (`CVSS:3.1/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:** 8 Oct 2020
- **Updated:** 13 Nov 2024
- **Also known as:** GHSA-5vp7-f4x6-7r58

## What is CVE-2020-3567?

CVE-2020-3567 is a medium-severity denial of service vulnerability in Cisco Industrial Network Director, published on 8 Oct 2020. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability in the management REST API of Cisco Industrial Network Director (IND) could allow an authenticated, remote attacker to cause the CPU utilization to increase to 100 percent, resulting in a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of requests sent to the REST API. An attacker could exploit this vulnerability by sending a crafted request to the REST API. A successful exploit could allow the attacker to cause a permanent DoS condition that is due to high CPU utilization. Manual intervention may be required to recover the Cisco IND.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2020-3567?

It affects 2 products.


Products: Cisco Industrial Network Director, Cisco Network Level Service.

## How do I fix CVE-2020-3567?

No fix has been published for CVE-2020-3567 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-3567 being exploited?

There is no known exploitation of CVE-2020-3567 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Industrial Network Director

- [CVE-2023-20036](https://insights.sbomify.com/CVE-2023-20036/): Cisco Industrial Network Director Command Injection Vulnerability (critical 9.9)
- [CVE-2023-20038](https://insights.sbomify.com/CVE-2023-20038/): Hardcoded credentials in Cisco Industrial Network Director (high 8.8)
- [CVE-2019-1976](https://insights.sbomify.com/CVE-2019-1976/): Cisco Industrial Network Director Configuration Data Information Disclosure Vulnerability (high 7.5)
- [CVE-2019-1861](https://insights.sbomify.com/CVE-2019-1861/): Cisco Industrial Network Director Remote Code Execution Vulnerability (high 7.2)
- [CVE-2019-15973](https://insights.sbomify.com/CVE-2019-15973/): Cisco Industrial Network Director Reflected Cross-Site Scripting Vulnerability (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-3567 and fix it if it is affected.

What it is: CVE-2020-3567 is a medium-severity denial of service vulnerability in Cisco Industrial Network Director, published on 8 Oct 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-3567 in the wild and no public exploit code.

Affected product: Cisco Industrial Network 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-2020-3567/ (Markdown: https://insights.sbomify.com/CVE-2020-3567/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-3567
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-3567
- OSV: https://osv.dev/vulnerability/CVE-2020-3567

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-3567/
Summaries are generated and may contain mistakes; the official description above is the record.