# CVE-2018-8949: Missing authorization in n/a

> Attackers can delete or overwrite attributes of other events in MISP by crafting specific API edit requests, compromising data integrity.

- **Severity:** Medium 4.3 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Mar 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-mr3w-hmjh-v2j3

## What is CVE-2018-8949?

CVE-2018-8949 is a medium-severity missing authorization vulnerability in Misp-Project Misp, published on 23 Mar 2018. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An issue was discovered in app/Model/Attribute.php in MISP before 2.4.89. There is a critical API integrity bug, potentially allowing users to delete attributes of other events. A crafted edit for an event (without attribute UUIDs but attribute IDs set) could overwrite an existing attribute.

Weakness: CWE-749 (Exposed Dangerous Method or Function)

## Which versions are affected by CVE-2018-8949?

It affects 1 product.


Products: Misp-Project Misp.

## How do I fix CVE-2018-8949?

No fix has been published for CVE-2018-8949 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-8949 being exploited?

There is no known exploitation of CVE-2018-8949 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-2018-8949 and fix it if it is affected.

What it is: CVE-2018-8949 is a medium-severity missing authorization vulnerability in Misp-Project Misp, published on 23 Mar 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-8949 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-2018-8949/ (Markdown: https://insights.sbomify.com/CVE-2018-8949/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-8949
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-8949
- OSV: https://osv.dev/vulnerability/CVE-2018-8949

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-8949/
Summaries are generated and may contain mistakes; the official description above is the record.