# CVE-2024-7847: RSLogix™ 5 and RSLogix 500® Remote Code Execution Via VBA Embedded Script

> Attackers can execute arbitrary code by tricking users into opening malicious project files with embedded VBA scripts in Rockwell RSLogix software.

- **Severity:** High 8.8 (`CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 14 Oct 2024
- **Updated:** 15 Oct 2024
- **Also known as:** GHSA-wr43-q2v2-949w

## What is CVE-2024-7847?

CVE-2024-7847 is a high-severity code injection vulnerability in Rockwell Automation RSLogix 500®, published on 14 Oct 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

VULNERABILITY DETAILS

Rockwell Automation used the latest versions of the CVSS scoring system to assess the following vulnerabilities. The following vulnerabilities were reported to us by Sharon Brizinov of Claroty Research - Team82. 

A feature in the affected products enables users to prepare a project file with an embedded VBA script and can be configured to run once the project file has been opened without user intervention.  This feature can be abused to trick a legitimate user into executing malicious code upon opening an infected RSP/RSS project file. If exploited, a threat actor may be able to perform a remote code execution. Connected devices may also be impacted by exploitation of this vulnerability.

Weakness: CWE-345 (Insufficient Verification of Data Authenticity)

## Which versions are affected by CVE-2024-7847?

It affects 4 products.


Products: Rockwellautomation Rslogix 5, Rockwellautomation Rslogix 500, Rockwellautomation Rslogix Micro Developer, Rockwellautomation Rslogix Micro Starter Lite.

## How do I fix CVE-2024-7847?

No fix has been published for CVE-2024-7847 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-7847 being exploited?

There is no known exploitation of CVE-2024-7847 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-7847 and fix it if it is affected.

What it is: CVE-2024-7847 is a high-severity code injection vulnerability in Rockwell Automation RSLogix 500®, published on 14 Oct 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2024-7847 in the wild and no public exploit code.

Affected product: Rockwell Automation RSLogix 500®. 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-2024-7847/ (Markdown: https://insights.sbomify.com/CVE-2024-7847/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-7847
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-7847
- OSV: https://osv.dev/vulnerability/CVE-2024-7847

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From sbomify Insights: https://insights.sbomify.com/CVE-2024-7847/
Summaries are generated and may contain mistakes; the official description above is the record.