# CVE-2019-18342: Path traversal in Control Center Server (CCS)

> Unauthenticated attackers can read or delete arbitrary files on Siemens Control Center Server via its SFTP service due to improper capability restrictions.

- **Severity:** Critical 9.9 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:F/RL:U/RC:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Dec 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-7jpc-wcv3-h3mc

## What is CVE-2019-18342?

CVE-2019-18342 is a critical path traversal vulnerability in Siemens Control Center Server (CCS), published on 12 Dec 2019. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability has been identified in Control Center Server (CCS) (All versions < V1.5.0). The SFTP service (default port 22/tcp) of the Control Center Server
(CCS) does not properly limit its capabilities to the specified purpose.

In conjunction with CVE-2019-18341, an unauthenticated remote attacker with
network access to the CCS server could exploit this vulnerability
to read or delete arbitrary files, or access other resources on the same
server.

Weakness: CWE-749 (Exposed Dangerous Method or Function)

## Which versions are affected by CVE-2019-18342?

It affects 1 product.


Products: Siemens Control Center Server.

## How do I fix CVE-2019-18342?

No fix has been published for CVE-2019-18342 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-18342 being exploited?

There is no known exploitation of CVE-2019-18342 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-18342 and fix it if it is affected.

What it is: CVE-2019-18342 is a critical path traversal vulnerability in Siemens Control Center Server (CCS), published on 12 Dec 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-18342 in the wild and no public exploit code.

Affected product: Siemens Control Center Server (CCS). 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-2019-18342/ (Markdown: https://insights.sbomify.com/CVE-2019-18342/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-18342
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-18342
- OSV: https://osv.dev/vulnerability/CVE-2019-18342

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-18342/
Summaries are generated and may contain mistakes; the official description above is the record.