# CVE-2019-1867: Cisco Elastic Services Controller REST API Authentication Bypass Vulnerability

> Unauthenticated remote attackers can bypass REST API authentication to execute arbitrary actions with administrative privileges on Cisco ESC.

- **Severity:** Critical 10.0 (`CVSS:3.0/AV:N/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 May 2019
- **Updated:** 19 Nov 2024
- **Also known as:** GHSA-gfx3-865x-23hf

## What is CVE-2019-1867?

CVE-2019-1867 is a critical authentication bypass vulnerability in Cisco Elastic Services Controller, published on 10 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability in the REST API of Cisco Elastic Services Controller (ESC) could allow an unauthenticated, remote attacker to bypass authentication on the REST API. The vulnerability is due to improper validation of API requests. An attacker could exploit this vulnerability by sending a crafted request to the REST API. A successful exploit could allow the attacker to execute arbitrary actions through the REST API with administrative privileges on an affected system.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2019-1867?

It affects 1 product.


Products: Cisco Elastic Services Controller.

## How do I fix CVE-2019-1867?

No fix has been published for CVE-2019-1867 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-1867 being exploited?

There is no known exploitation of CVE-2019-1867 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Elastic Services Controller

- [CVE-2018-0121](https://insights.sbomify.com/CVE-2018-0121/): Auth bypass in Cisco Elastic Services Controller (critical 9.8)
- [CVE-2017-6713](https://insights.sbomify.com/CVE-2017-6713/): Hardcoded credentials in Cisco Elastic Services Controller (critical 9.8)
- [CVE-2017-6712](https://insights.sbomify.com/CVE-2017-6712/): Command injection in Cisco Elastic Services Controller (high 8.8)
- [CVE-2017-6682](https://insights.sbomify.com/CVE-2017-6682/): Command injection in Cisco Elastic Services Controller (high 8.8)
- [CVE-2017-6683](https://insights.sbomify.com/CVE-2017-6683/): Command injection in Cisco Elastic Services Controller (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-1867 and fix it if it is affected.

What it is: CVE-2019-1867 is a critical authentication bypass vulnerability in Cisco Elastic Services Controller, published on 10 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-1867 in the wild and no public exploit code.

Affected product: Cisco Elastic Services Controller. 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-2019-1867/ (Markdown: https://insights.sbomify.com/CVE-2019-1867/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-1867
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-1867
- OSV: https://osv.dev/vulnerability/CVE-2019-1867

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-1867/
Summaries are generated and may contain mistakes; the official description above is the record.