# CVE-2024-27674: Privilege escalation in n/a

> Unprivileged users can escalate to SYSTEM by replacing the MacroService.exe binary due to insecure folder permissions.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Apr 2024
- **Updated:** 28 Oct 2024
- **Also known as:** GHSA-f636-m6gc-99ch

## What is CVE-2024-27674?

CVE-2024-27674 is a high-severity vulnerability in n/a, published on 3 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Macro Expert through 4.9.4 allows BUILTIN\Users:(OI)(CI)(M) access to the "%PROGRAMFILES(X86)%\GrassSoft\Macro Expert" folder and thus an unprivileged user can escalate to SYSTEM by replacing the MacroService.exe binary.

Weakness: CWE-276 (Incorrect Default Permissions)

## Which versions are affected by CVE-2024-27674?

It affects 1 product.


Products: Macro-Expert Macro Expert.

## How do I fix CVE-2024-27674?

No fix has been published for CVE-2024-27674 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-27674 being exploited?

There is no known exploitation of CVE-2024-27674 in the wild and no public exploit code.

Public exploit code:

- Macro Expert <= 4.9.4 - Insecure Permissions Privilege Escalation (github_poc): https://github.com/Alaatk/CVE-2024-27674

## Other vulnerabilities in n/a

- [CVE-2021-47780](https://insights.sbomify.com/CVE-2021-47780/): Macro Expert 4.7 - Unquoted Service Path (high 8.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-27674 and fix it if it is affected.

What it is: CVE-2024-27674 is a high-severity vulnerability in n/a, published on 3 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-27674 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-2024-27674/ (Markdown: https://insights.sbomify.com/CVE-2024-27674/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-27674
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-27674
- OSV: https://osv.dev/vulnerability/CVE-2024-27674

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-27674/
Summaries are generated and may contain mistakes; the official description above is the record.