# CVE-2018-18990: Path traversal in LCDS Laquis SCADA

> Attackers can exploit path traversal in LCDS Laquis SCADA to disclose sensitive information via the web server process.

- **Severity:** Medium 5.3 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **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:** 17 Sep 2024
- **Also known as:** GHSA-qc28-vhj7-64xw

## What is CVE-2018-18990?

CVE-2018-18990 is a medium-severity path traversal 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 a user-supplied path in file operations prior to proper validation. An attacker can leverage this vulnerability to disclose sensitive information under the context of the web server process.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory), CWE-23 (Relative Path Traversal)

## Which versions are affected by CVE-2018-18990?

It affects 1 product.


Products: Lcds Laquis Scada.

## How do I fix CVE-2018-18990?

No fix has been published for CVE-2018-18990 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-18990 being exploited?

There is no known exploitation of CVE-2018-18990 in the wild and no public exploit code.

## Other vulnerabilities in ICS-CERT LCDS Laquis SCADA

- [CVE-2018-18996](https://insights.sbomify.com/CVE-2018-18996/): Missing authorization in LCDS Laquis SCADA (critical 9.8)
- [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)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-18990 and fix it if it is affected.

What it is: CVE-2018-18990 is a medium-severity path traversal 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-2018-18990 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-2018-18990/ (Markdown: https://insights.sbomify.com/CVE-2018-18990/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-18990
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-18990
- OSV: https://osv.dev/vulnerability/CVE-2018-18990

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-18990/
Summaries are generated and may contain mistakes; the official description above is the record.