# CVE-2019-18905: Deprecated functionality in autoyast2 automatically imports gpg keys without checking them

> Attackers can bypass GPG key verification during image creation via deprecated autoyast functionality, enabling man-in-the-middle attacks on SUSE Linux Enterprise Server.

- **Severity:** Medium 4.8 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 3 Apr 2020
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-fp46-x6qh-pvgg, SUSE-SU-2020:1296-1, openSUSE-SU-2020:0676-1, openSUSE-SU-2024:10642-1

## What is CVE-2019-18905?

CVE-2019-18905 is a medium-severity vulnerability in SUSE Linux Enterprise Server 12, published on 3 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A Insufficient Verification of Data Authenticity vulnerability in autoyast2 of SUSE Linux Enterprise Server 12, SUSE Linux Enterprise Server 15 allows remote attackers to MITM connections when deprecated and unused functionality of autoyast is used to create images. This issue affects: SUSE Linux Enterprise Server 12 autoyast2 version 4.1.9-3.9.1 and prior versions. SUSE Linux Enterprise Server 15 autoyast2 version 4.0.70-3.20.1 and prior versions.

Weakness: CWE-345 (Insufficient Verification of Data Authenticity)

## Which versions are affected by CVE-2019-18905?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `autoyast2` | SUSE:Linux Enterprise Module for Basesystem 15 SP1 | All versions | 4.1.15-3.13.1 |
| `autoyast2` | openSUSE:Leap 15.1 | All versions | 4.1.15-lp151.2.12.1 |

Products: Opensuse Autoyast2.

## How do I fix CVE-2019-18905?

Apply the vendor's patch.

## Is CVE-2019-18905 being exploited?

There is no known exploitation of CVE-2019-18905 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-18905 and fix it if it is affected.

What it is: CVE-2019-18905 is a medium-severity vulnerability in SUSE Linux Enterprise Server 12, published on 3 Apr 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-2019-18905 in the wild and no public exploit code.

Affected product: SUSE Linux Enterprise Server 12. 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-2019-18905/ (Markdown: https://insights.sbomify.com/CVE-2019-18905/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-18905
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-18905
- OSV: https://osv.dev/vulnerability/CVE-2019-18905

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-18905/
Summaries are generated and may contain mistakes; the official description above is the record.