# CVE-2024-29836: Broken Authentication on USER_CHANGE in Evolution Controller allows unauthenticated account creation and takeover

> Unauthenticated attackers can create or modify user profiles to gain full administrative access to the Evolution Controller web interface.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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:** 14 Apr 2024
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-8vcp-v22r-9p96

## What is CVE-2024-29836?

CVE-2024-29836 is a critical authentication bypass vulnerability in CS Technologies Australia Evolution Controller, published on 14 Apr 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Web interface of Evolution Controller Versions 2.04.560.31.03.2024 and below contains poorly configured access control, allowing for an unauthenticated attacker to update and add user profiles within the application, and gain full access of the site.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2024-29836?

It affects 1 product.


Products: Cs-Technologies Evolution.

## How do I fix CVE-2024-29836?

No fix has been published for CVE-2024-29836 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-29836 being exploited?

There is no known exploitation of CVE-2024-29836 in the wild and no public exploit code.

## Other vulnerabilities in CS Technologies Australia Evolution Controller

- [CVE-2024-29844](https://insights.sbomify.com/CVE-2024-29844/): Hardcoded credentials in Evolution Controller (critical 9.8)
- [CVE-2024-29837](https://insights.sbomify.com/CVE-2024-29837/): Poor session management in Evolution Controller allows administrator functionality for unauthenticated connections (high 8.8)
- [CVE-2024-29838](https://insights.sbomify.com/CVE-2024-29838/): Unsanitised variable on DAL_ADD in Evolution Controller causes application level denial of service and crash (high 7.5)
- [CVE-2024-29839](https://insights.sbomify.com/CVE-2024-29839/): Missing authorization in Evolution Controller (high 7.5)
- [CVE-2024-29840](https://insights.sbomify.com/CVE-2024-29840/): Missing authorization in Evolution Controller (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-29836 and fix it if it is affected.

What it is: CVE-2024-29836 is a critical authentication bypass vulnerability in CS Technologies Australia Evolution Controller, published on 14 Apr 2024. 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-2024-29836 in the wild and no public exploit code.

Affected product: CS Technologies Australia Evolution 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-2024-29836/ (Markdown: https://insights.sbomify.com/CVE-2024-29836/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-29836
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-29836
- OSV: https://osv.dev/vulnerability/CVE-2024-29836

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-29836/
Summaries are generated and may contain mistakes; the official description above is the record.