# CVE-2021-28124: Security feature bypass in n/a

> Missing server authentication allows attackers to intercept support channel sessions, potentially exposing sensitive data or enabling session hijacking.

- **Severity:** Medium 5.9 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Apr 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-54qf-2p7x-6xwx

## What is CVE-2021-28124?

CVE-2021-28124 is a medium-severity vulnerability in n/a, published on 2 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A man-in-the-middle vulnerability in Cohesity DataPlatform support channel in version 6.3 up to 6.3.1g, 6.4 up to 6.4.1c and 6.5.1 through 6.5.1b. Missing server authentication in impacted versions can allow an attacker to Man-in-the-middle (MITM) support channel UI session to Cohesity DataPlatform cluster.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2021-28124?

It affects 1 product.


Products: Cohesity Cohesity Dataplatform.

## How do I fix CVE-2021-28124?

No fix has been published for CVE-2021-28124 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-28124 being exploited?

There is no known exploitation of CVE-2021-28124 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-28123](https://insights.sbomify.com/CVE-2021-28123/): Hardcoded credentials in n/a (critical 9.8)
- [CVE-2023-33295](https://insights.sbomify.com/CVE-2023-33295/): Security feature bypass in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-28124 and fix it if it is affected.

What it is: CVE-2021-28124 is a medium-severity vulnerability in n/a, published on 2 Apr 2021. 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-2021-28124 in the wild and no public exploit code.

Affected product: n/a. 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-2021-28124/ (Markdown: https://insights.sbomify.com/CVE-2021-28124/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-28124
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-28124
- OSV: https://osv.dev/vulnerability/CVE-2021-28124

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-28124/
Summaries are generated and may contain mistakes; the official description above is the record.