# CVE-2018-12649: Security feature bypass in n/a

> Attackers can bypass brute-force protection in MISP login by using PUT instead of POST, allowing unlimited login attempts.

- **Severity:** Critical 9.8 (`CVSS:3.0/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:** 22 Jun 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-c6gr-mfc7-q7h7

## What is CVE-2018-12649?

CVE-2018-12649 is a critical vulnerability in Misp-Project Misp, published on 22 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in app/Controller/UsersController.php in MISP 2.4.92. An adversary can bypass the brute-force protection by using a PUT HTTP method instead of a POST HTTP method in the login part, because this protection was only covering POST requests.

Weakness: CWE-307 (Improper Restriction of Excessive Authentication Attempts)

## Which versions are affected by CVE-2018-12649?

It affects 1 product.


Products: Misp-Project Misp.

## How do I fix CVE-2018-12649?

No fix has been published for CVE-2018-12649 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-12649 being exploited?

There is no known exploitation of CVE-2018-12649 in the wild and no public exploit code.

## Other vulnerabilities in Misp-Project Misp

- [CVE-2024-46918](https://insights.sbomify.com/CVE-2024-46918/): Missing authorization in n/a (critical 9.8)
- [CVE-2024-45509](https://insights.sbomify.com/CVE-2024-45509/): Missing authorization in n/a (critical 9.8)
- [CVE-2024-29858](https://insights.sbomify.com/CVE-2024-29858/): File upload in n/a (critical 9.8)
- [CVE-2024-29859](https://insights.sbomify.com/CVE-2024-29859/): File upload in n/a (critical 9.8)
- [CVE-2024-25674](https://insights.sbomify.com/CVE-2024-25674/): File upload in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-12649 and fix it if it is affected.

What it is: CVE-2018-12649 is a critical vulnerability in Misp-Project Misp, published on 22 Jun 2018. 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-2018-12649 in the wild and no public exploit code.

Affected product: Misp-Project Misp. 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-2018-12649/ (Markdown: https://insights.sbomify.com/CVE-2018-12649/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-12649
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-12649
- OSV: https://osv.dev/vulnerability/CVE-2018-12649

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-12649/
Summaries are generated and may contain mistakes; the official description above is the record.