# CVE-2018-18996: Missing authorization in LCDS Laquis SCADA

> Attackers can execute remote code on LCDS Laquis SCADA servers due to missing authorization and input sanitation.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Feb 2019
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-q9mp-cgfx-mqjr

## What is CVE-2018-18996?

CVE-2018-18996 is a critical missing authorization vulnerability in ICS-CERT LCDS Laquis SCADA, published on 5 Feb 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

LCDS Laquis SCADA prior to version 4.1.0.4150 allows taking in user input without proper authorization or sanitation, which may allow an attacker to execute remote code on the server.

Weakness: CWE-862 (Missing Authorization), CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2018-18996?

It affects 1 product.


Products: Lcds Laquis Scada.

## How do I fix CVE-2018-18996?

No fix has been published for CVE-2018-18996 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-18996 being exploited?

There is no known exploitation of CVE-2018-18996 in the wild and no public exploit code.

## Other vulnerabilities in ICS-CERT LCDS Laquis SCADA

- [CVE-2018-18998](https://insights.sbomify.com/CVE-2018-18998/): Hardcoded credentials in LCDS Laquis SCADA (critical 9.8)
- [CVE-2018-17893](https://insights.sbomify.com/CVE-2018-17893/): Null dereference in LAquis SCADA (critical 9.8)
- [CVE-2018-17895](https://insights.sbomify.com/CVE-2018-17895/): Memory corruption in LAquis SCADA (critical 9.8)
- [CVE-2018-17897](https://insights.sbomify.com/CVE-2018-17897/): Integer overflow in n/a (critical 9.8)
- [CVE-2021-32989](https://insights.sbomify.com/CVE-2021-32989/): LCDS LAquis SCADA - Cross-site Scripting (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-18996 and fix it if it is affected.

What it is: CVE-2018-18996 is a critical missing authorization vulnerability in ICS-CERT LCDS Laquis SCADA, published on 5 Feb 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-18996 in the wild and no public exploit code.

Affected product: ICS-CERT LCDS Laquis SCADA. 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-2018-18996/ (Markdown: https://insights.sbomify.com/CVE-2018-18996/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-18996
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-18996
- OSV: https://osv.dev/vulnerability/CVE-2018-18996

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-18996/
Summaries are generated and may contain mistakes; the official description above is the record.