# CVE-2020-3138: Cisco Enterprise NFV Infrastructure Software Remote Code Execution Vulnerability

> An authenticated local attacker can execute arbitrary code by uploading a malicious upgrade file due to insufficient signature validation in Cisco NFVIS.

- **Severity:** Medium 6.7 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Feb 2020
- **Updated:** 15 Nov 2024
- **Also known as:** GHSA-9q6j-4fr7-7x67

## What is CVE-2020-3138?

CVE-2020-3138 is a medium-severity code injection vulnerability in Cisco NA, published on 19 Feb 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability in the upgrade component of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, local attacker to install a malicious file when upgrading. The vulnerability is due to insufficient signature validation. An attacker could exploit this vulnerability by providing a crafted upgrade file. A successful exploit could allow the attacker to upload crafted code to the affected device.

Weakness: CWE-347 (Improper Verification of Cryptographic Signature)

## Which versions are affected by CVE-2020-3138?

It affects 1 product.


Products: Cisco Enterprise Nfv Infrastructure Software.

## How do I fix CVE-2020-3138?

No fix has been published for CVE-2020-3138 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-3138 being exploited?

There is no known exploitation of CVE-2020-3138 in the wild and no public exploit code.

## Other vulnerabilities in Cisco NA

- [CVE-2022-20777](https://insights.sbomify.com/CVE-2022-20777/): Cisco Enterprise NFV Infrastructure Software Vulnerabilities (critical 9.9)
- [CVE-2022-20779](https://insights.sbomify.com/CVE-2022-20779/): Cisco Enterprise NFV Infrastructure Software Vulnerabilities (critical 9.9)
- [CVE-2022-20780](https://insights.sbomify.com/CVE-2022-20780/): Cisco Enterprise NFV Infrastructure Software Vulnerabilities (critical 9.9)
- [CVE-2021-34746](https://insights.sbomify.com/CVE-2021-34746/): Cisco Enterprise NFV Infrastructure Software Authentication Bypass Vulnerability (critical 9.8)
- [CVE-2020-3470](https://insights.sbomify.com/CVE-2020-3470/): Cisco Integrated Management Controller Multiple Remote Code Execution Vulnerabilities (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-3138 and fix it if it is affected.

What it is: CVE-2020-3138 is a medium-severity code injection vulnerability in Cisco NA, published on 19 Feb 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-3138 in the wild and no public exploit code.

Affected product: Cisco NA. 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-2020-3138/ (Markdown: https://insights.sbomify.com/CVE-2020-3138/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-3138
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-3138
- OSV: https://osv.dev/vulnerability/CVE-2020-3138

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-3138/
Summaries are generated and may contain mistakes; the official description above is the record.