# CVE-2018-2943: Auth bypass in Fusion Middleware MapViewer

> Unauthenticated attackers can compromise Oracle Fusion Middleware MapViewer via HTTP, leading to full system takeover.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Jul 2018
- **Updated:** 2 Oct 2024
- **Also known as:** GHSA-xxj3-q67x-cf44

## What is CVE-2018-2943?

CVE-2018-2943 is a critical authentication bypass vulnerability in Oracle Corporation Fusion Middleware MapViewer, published on 18 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Vulnerability in the Oracle Fusion Middleware MapViewer component of Oracle Fusion Middleware (subcomponent: Map Builder). Supported versions that are affected are 12.2.1.2.0 and 12.2.1.3.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Fusion Middleware MapViewer. Successful attacks of this vulnerability can result in takeover of Oracle Fusion Middleware MapViewer. CVSS 3.0 Base Score 7.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

## Which versions are affected by CVE-2018-2943?

It affects 1 product.


Products: Oracle Fusion Middleware Mapviewer.

## How do I fix CVE-2018-2943?

No fix has been published for CVE-2018-2943 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-2943 being exploited?

There is no known exploitation of CVE-2018-2943 in the wild and no public exploit code.

## Other vulnerabilities in Oracle Corporation Fusion Middleware MapViewer

- [CVE-2017-3230](https://insights.sbomify.com/CVE-2017-3230/): Missing authorization in Fusion Middleware MapViewer (high 8.6)
- [CVE-2020-14608](https://insights.sbomify.com/CVE-2020-14608/): Missing authorization in Fusion Middleware MapViewer (high 8.2)
- [CVE-2020-14607](https://insights.sbomify.com/CVE-2020-14607/): Cross-site scripting in Fusion Middleware MapViewer (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-2943 and fix it if it is affected.

What it is: CVE-2018-2943 is a critical authentication bypass vulnerability in Oracle Corporation Fusion Middleware MapViewer, published on 18 Jul 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-2018-2943 in the wild and no public exploit code.

Affected product: Oracle Corporation Fusion Middleware MapViewer. 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-2018-2943/ (Markdown: https://insights.sbomify.com/CVE-2018-2943/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-2943
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-2943
- OSV: https://osv.dev/vulnerability/CVE-2018-2943

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-2943/
Summaries are generated and may contain mistakes; the official description above is the record.