# CVE-2019-13163: Weak cryptography in n/a

> A weak cryptographic implementation in the Fujitsu TLS library allows man-in-the-middle attacks, compromising communication security across multiple Fujitsu enterprise products.

- **Severity:** Medium 5.9 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/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:** 7 Feb 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-mm9r-gphc-2hhq

## What is CVE-2019-13163?

CVE-2019-13163 is a medium-severity vulnerability in n/a, published on 7 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Fujitsu TLS library allows a man-in-the-middle attack. This affects Interstage Application Development Cycle Manager V10 and other versions, Interstage Application Server V12 and other versions, Interstage Business Application Manager V2 and other versions, Interstage Information Integrator V11 and other versions, Interstage Job Workload Server V8, Interstage List Works V10 and other versions, Interstage Studio V12 and other versions, Interstage Web Server Express V11, Linkexpress V5, Safeauthor V3, ServerView Resource Orchestrator V3, Systemwalker Cloud Business Service Management V1, Systemwalker Desktop Keeper V15, Systemwalker Desktop Patrol V15, Systemwalker IT Change Manager V14, Systemwalker Operation Manager V16 and other versions, Systemwalker Runbook Automation V15 and other versions, Systemwalker Security Control V1, and Systemwalker Software Configuration Manager V15.

Weakness: CWE-326 (Inadequate Encryption Strength)

## Which versions are affected by CVE-2019-13163?

It affects 40 products.


Products: Fujitsu Celsius Firmware, Fujitsu Gp7000f Firmware, Fujitsu Gps Firmware, Fujitsu Granpower 5000 Firmware, Fujitsu Interstage Application Development Cycle Manager, Fujitsu Interstage Application Server, Fujitsu Interstage Business Application Manager, Fujitsu Interstage Information Integrator, Fujitsu Interstage Information Integrator Agent, Fujitsu Interstage Job Workload Server, Fujitsu Interstage List Works, Fujitsu Interstage Studio, Fujitsu Interstage Web Server Express, Fujitsu Linkexpress, Fujitsu Primepower Firmware, Fujitsu Primequest Firmware, Fujitsu Primergy Rx2530 M5 Firmware, Fujitsu Primergy Rx2540 M5 Firmware, Fujitsu Primergy Rx4770 M5 Firmware, Fujitsu Primergy Tx2550 M5 Firmware and 20 more.

## How do I fix CVE-2019-13163?

No fix has been published for CVE-2019-13163 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-13163 being exploited?

There is no known exploitation of CVE-2019-13163 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-13163 and fix it if it is affected.

What it is: CVE-2019-13163 is a medium-severity vulnerability in n/a, published on 7 Feb 2020. 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-2019-13163 in the wild and no public exploit code.

Affected product: n/a. 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-2019-13163/ (Markdown: https://insights.sbomify.com/CVE-2019-13163/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-13163
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-13163
- OSV: https://osv.dev/vulnerability/CVE-2019-13163

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-13163/
Summaries are generated and may contain mistakes; the official description above is the record.