# CVE-2019-1894: Cisco Enterprise NFV Infrastructure Software Arbitrary File Read and Write Vulnerability

> Authenticated administrators can read or overwrite arbitrary files on the underlying OS of Cisco NFVIS devices due to improper input validation.

- **Severity:** High 7.2 (`CVSS:3.0/AV:N/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Jul 2019
- **Updated:** 20 Nov 2024
- **Also known as:** GHSA-5x6v-ccmr-rp83

## What is CVE-2019-1894?

CVE-2019-1894 is a high-severity path traversal vulnerability in Cisco Enterprise NFV Infrastructure Software, published on 6 Jul 2019. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A vulnerability in Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, remote attacker with administrator privileges to overwrite or read arbitrary files on the underlying operating system (OS) of an affected device. The vulnerability is due to improper input validation in NFVIS filesystem commands. An attacker could exploit this vulnerability by using crafted variables during the execution of an affected command. A successful exploit could allow the attacker to overwrite or read arbitrary files on the underlying OS.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2019-1894?

It affects 1 product.


Products: Cisco Enterprise Nfv Infrastructure Software.

## How do I fix CVE-2019-1894?

No fix has been published for CVE-2019-1894 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-1894 being exploited?

There is no known exploitation of CVE-2019-1894 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Enterprise NFV Infrastructure Software

- [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-2019-1894 and fix it if it is affected.

What it is: CVE-2019-1894 is a high-severity path traversal vulnerability in Cisco Enterprise NFV Infrastructure Software, published on 6 Jul 2019. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-1894 in the wild and no public exploit code.

Affected product: Cisco Enterprise NFV Infrastructure Software. 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-2019-1894/ (Markdown: https://insights.sbomify.com/CVE-2019-1894/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-1894
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-1894
- OSV: https://osv.dev/vulnerability/CVE-2019-1894

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-1894/
Summaries are generated and may contain mistakes; the official description above is the record.