# CVE-2023-24509: Privilege escalation in Arista EOS

> An unprivileged user can escalate to root on standby supervisors in Arista EOS devices configured with RPR or SSO redundancy.

- **Severity:** Critical 9.3 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Apr 2023
- **Updated:** 7 Feb 2025
- **Also known as:** GHSA-w53j-gpf9-387j

## What is CVE-2023-24509?

CVE-2023-24509 is a critical vulnerability in Arista EOS, published on 13 Apr 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

On affected modular platforms running Arista EOS equipped with both redundant supervisor modules and having the redundancy protocol configured with RPR or SSO, an existing unprivileged user can login to the standby supervisor as a root user, leading to a privilege escalation. Valid user credentials are required in order to exploit this vulnerability.

Weakness: CWE-269 (Improper Privilege Management)

## Which versions are affected by CVE-2023-24509?

It affects 1 product.


Products: Arista Eos.

## How do I fix CVE-2023-24509?

No fix has been published for CVE-2023-24509 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-24509 being exploited?

There is no known exploitation of CVE-2023-24509 in the wild and no public exploit code.

## Other vulnerabilities in Arista EOS

- [CVE-2026-7473](https://insights.sbomify.com/CVE-2026-7473/): Arista Extensible Operating System Incomplete Comparison with Missing Factors (medium 6.9, exploited in the wild)
- [CVE-2015-8236](https://insights.sbomify.com/CVE-2015-8236/): Privilege escalation in n/a (critical 10.0)
- [CVE-2020-10188](https://insights.sbomify.com/CVE-2020-10188/): Memory corruption in n/a (critical 9.8)
- [CVE-2017-18017](https://insights.sbomify.com/CVE-2017-18017/): Use after free in n/a (critical 9.8)
- [CVE-2017-14491](https://insights.sbomify.com/CVE-2017-14491/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-24509 and fix it if it is affected.

What it is: CVE-2023-24509 is a critical vulnerability in Arista EOS, published on 13 Apr 2023. 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-2023-24509 in the wild and no public exploit code.

Affected product: Arista EOS. 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-2023-24509/ (Markdown: https://insights.sbomify.com/CVE-2023-24509/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-24509
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-24509
- OSV: https://osv.dev/vulnerability/CVE-2023-24509

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-24509/
Summaries are generated and may contain mistakes; the official description above is the record.