# CVE-2018-8861: Privilege escalation in Brilliance CT Scanners

> Attackers can escape the kiosk environment to gain elevated Windows privileges and access unauthorized resources on Philips Brilliance CT scanners.

- **Severity:** High 8.7 (`CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L`)
- **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:** 4 May 2018
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-w6p7-4p9q-w24c

## What is CVE-2018-8861?

CVE-2018-8861 is a high-severity vulnerability in Philips Brilliance CT Scanners, published on 4 May 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Vulnerabilities within the Philips Brilliance CT kiosk environment (Brilliance 64 version 2.6.2 and prior, Brilliance iCT versions 4.1.6 and prior, Brillance iCT SP versions 3.2.4 and prior, and Brilliance CT Big Bore 2.3.5 and prior) could enable a limited-access kiosk user or an unauthorized attacker to break-out from the containment of the kiosk environment, attain elevated privileges from the underlying Windows OS, and access unauthorized resources from the operating system.

Weakness: CWE-668 (Exposure of Resource to Wrong Sphere)

## Which versions are affected by CVE-2018-8861?

It affects 4 products.


Products: Philips  Brilliance Ct Big Bore Firmware, Philips Brilliance Firmware 64, Philips Brilliance Ict Firmware, Philips Brilliance Ict Sp Firmware.

## How do I fix CVE-2018-8861?

No fix has been published for CVE-2018-8861 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-8861 being exploited?

There is no known exploitation of CVE-2018-8861 in the wild and no public exploit code.

## Other vulnerabilities in Philips Brilliance CT Scanners

- [CVE-2018-8853](https://insights.sbomify.com/CVE-2018-8853/): Privilege escalation in Brilliance CT Scanners (high 8.8)
- [CVE-2018-8857](https://insights.sbomify.com/CVE-2018-8857/): Hardcoded credentials in Brilliance CT Scanners (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-8861 and fix it if it is affected.

What it is: CVE-2018-8861 is a high-severity vulnerability in Philips Brilliance CT Scanners, published on 4 May 2018. 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-2018-8861 in the wild and no public exploit code.

Affected product: Philips Brilliance CT Scanners. 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-2018-8861/ (Markdown: https://insights.sbomify.com/CVE-2018-8861/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-8861
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-8861
- OSV: https://osv.dev/vulnerability/CVE-2018-8861

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-8861/
Summaries are generated and may contain mistakes; the official description above is the record.