# CVE-2019-5631: Rapid7 InsightAppSec Local Privilege Escalation

> A local authenticated user can elevate privileges to SYSTEM via DLL injection in the InsightAppSec broker component.

- **Severity:** High 7.8 (`CVSS:3.0/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:** 19 Aug 2019
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-2rf8-g32v-wxm7

## What is CVE-2019-5631?

CVE-2019-5631 is a high-severity vulnerability in Rapid7 InsightAppSec, published on 19 Aug 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The Rapid7 InsightAppSec broker suffers from a DLL injection vulnerability in the 'prunsrv.exe' component of the product. If exploited, a local user of the system (who must already be authenticated to the operating system) can elevate their privileges with this vulnerability to the privilege level of InsightAppSec (usually, SYSTEM). This issue affects version 2019.06.24 and prior versions of the product.

Weakness: CWE-426 (Untrusted Search Path), CWE-427 (Uncontrolled Search Path Element)

## Which versions are affected by CVE-2019-5631?

It affects 1 product.


Products: Rapid7 Insightappsec.

## How do I fix CVE-2019-5631?

No fix has been published for CVE-2019-5631 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-5631 being exploited?

There is no known exploitation of CVE-2019-5631 in the wild and no public exploit code.

## Other vulnerabilities in Rapid7 InsightAppSec

- [CVE-2023-1304](https://insights.sbomify.com/CVE-2023-1304/): Rapid7 InsightCloudSec getattr() method access (high 8.8)
- [CVE-2023-1306](https://insights.sbomify.com/CVE-2023-1306/): Rapid7 InsightCloudSec resource.db() method access (high 8.8)
- [CVE-2023-1305](https://insights.sbomify.com/CVE-2023-1305/): Rapid7 InsightCloudSec box object access (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-5631 and fix it if it is affected.

What it is: CVE-2019-5631 is a high-severity vulnerability in Rapid7 InsightAppSec, published on 19 Aug 2019. 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-2019-5631 in the wild and no public exploit code.

Affected product: Rapid7 InsightAppSec. 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-2019-5631/ (Markdown: https://insights.sbomify.com/CVE-2019-5631/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-5631
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-5631
- OSV: https://osv.dev/vulnerability/CVE-2019-5631

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-5631/
Summaries are generated and may contain mistakes; the official description above is the record.