# CVE-2020-26084: Cisco Edge Fog Fabric Resource Exposure Vulnerability

> An authenticated attacker can overwrite arbitrary files on Cisco Edge Fog Fabric devices due to incorrect authorization enforcement in the REST API.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N`)
- **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:** 6 Nov 2020
- **Updated:** 13 Nov 2024
- **Also known as:** GHSA-fq5m-cp8f-255j

## What is CVE-2020-26084?

CVE-2020-26084 is a medium-severity missing authorization vulnerability in Cisco Edge Fog Fabric, published on 6 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability in the REST API of Cisco Edge Fog Fabric could allow an authenticated, remote attacker to access files outside of their authorization sphere on an affected device. The vulnerability is due to incorrect authorization enforcement on an affected system. An attacker could exploit this vulnerability by sending a crafted request to the API. A successful exploit could allow the attacker to overwrite arbitrary files on the affected device.

Weakness: CWE-668 (Exposure of Resource to Wrong Sphere)

## Which versions are affected by CVE-2020-26084?

It affects 1 product.


Products: Cisco Edge Fog Fabric.

## How do I fix CVE-2020-26084?

No fix has been published for CVE-2020-26084 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-26084 being exploited?

There is no known exploitation of CVE-2020-26084 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-26084 and fix it if it is affected.

What it is: CVE-2020-26084 is a medium-severity missing authorization vulnerability in Cisco Edge Fog Fabric, published on 6 Nov 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-2020-26084 in the wild and no public exploit code.

Affected product: Cisco Edge Fog Fabric. 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-2020-26084/ (Markdown: https://insights.sbomify.com/CVE-2020-26084/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-26084
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-26084
- OSV: https://osv.dev/vulnerability/CVE-2020-26084

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-26084/
Summaries are generated and may contain mistakes; the official description above is the record.