# CVE-2018-12472: Authentication bypass in sibling check

> Remote attackers can spoof sibling servers by exploiting improper authentication in the HOST header of SUSE SMT.

- **Severity:** High 7.3 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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:** 4 Oct 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-52vw-gr9g-vp37, SUSE-SU-2018:3467-1, SUSE-SU-2018:3467-2

## What is CVE-2018-12472?

CVE-2018-12472 is a high-severity authentication bypass vulnerability in SUSE Linux SMT, published on 4 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A improper authentication using the HOST header in SUSE Linux SMT allows remote attackers to spoof a sibling server. Affected releases are SUSE Linux SMT: versions prior to 3.0.37.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2018-12472?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `smt` | SUSE:Enterprise Storage 4 | All versions | 3.0.38-52.26.1 |
| `smt` | SUSE:Linux Enterprise Module for Public Cloud 12 | All versions | 3.0.38-52.26.1 |
| `smt` | SUSE:Linux Enterprise Server 12 SP1-LTSS | All versions | 3.0.38-52.26.1 |
| `smt` | SUSE:Linux Enterprise Server 12 SP2-BCL | All versions | 3.0.38-52.26.1 |
| `smt` | SUSE:Linux Enterprise Server 12 SP2-LTSS | All versions | 3.0.38-52.26.1 |
| `smt` | SUSE:Linux Enterprise Server 12 SP3 | All versions | 3.0.38-52.26.1 |
| `smt` | SUSE:Linux Enterprise Server for SAP Applications 12 SP1 | All versions | 3.0.38-52.26.1 |
| `smt` | SUSE:Linux Enterprise Server for SAP Applications 12 SP2 | All versions | 3.0.38-52.26.1 |
| `smt` | SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | All versions | 3.0.38-52.26.1 |
| `smt` | SUSE:OpenStack Cloud 7 | All versions | 3.0.38-52.26.1 |

Products: Suse Subscription Management Tool.

## How do I fix CVE-2018-12472?

Apply the vendor's patch.

## Is CVE-2018-12472 being exploited?

There is no known exploitation of CVE-2018-12472 in the wild and no public exploit code.

## Other vulnerabilities in SUSE Linux SMT

- [CVE-2018-12470](https://insights.sbomify.com/CVE-2018-12470/): SQL injection in RegistrationSharing module (critical 9.8)
- [CVE-2018-12471](https://insights.sbomify.com/CVE-2018-12471/): External Entity processing in the RegistrationSharing module (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-12472 and fix it if it is affected.

What it is: CVE-2018-12472 is a high-severity authentication bypass vulnerability in SUSE Linux SMT, published on 4 Oct 2018. 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-2018-12472 in the wild and no public exploit code.

Affected product: SUSE Linux SMT. 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-2018-12472/ (Markdown: https://insights.sbomify.com/CVE-2018-12472/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-12472
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-12472
- OSV: https://osv.dev/vulnerability/CVE-2018-12472

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-12472/
Summaries are generated and may contain mistakes; the official description above is the record.