# CVE-2018-5490: Missing authorization in Clustered Data ONTAP

> Authenticated SMB clients can bypass read-only restrictions to modify data in NetApp Clustered Data ONTAP release candidates.

- **Severity:** High 8.8 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 3 Aug 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-wq6r-8qf6-65vc

## What is CVE-2018-5490?

CVE-2018-5490 is a high-severity missing authorization vulnerability in Netapp Clustered Data Ontap, published on 3 Aug 2018. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Read-Only export policy rules are not correctly enforced in Clustered Data ONTAP 8.3 Release Candidate versions and therefore may allow more than "read-only" access from authenticated SMBv2 and SMBv3 clients. This behavior has been resolved in the GA release. Customers running prior release candidates (RCs) are requested to update their systems to the NetApp Data ONTAP 8.3 GA release.

Weakness: CWE-732 (Incorrect Permission Assignment for Critical Resource)

## Which versions are affected by CVE-2018-5490?

It affects 1 product.


Products: Netapp Clustered Data Ontap.

## How do I fix CVE-2018-5490?

No fix has been published for CVE-2018-5490 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-5490 being exploited?

There is no known exploitation of CVE-2018-5490 in the wild and no public exploit code.

## Other vulnerabilities in Netapp Clustered Data Ontap

- [CVE-2015-7853](https://insights.sbomify.com/CVE-2015-7853/): Integer overflow in n/a (critical 9.8)
- [CVE-2017-9119](https://insights.sbomify.com/CVE-2017-9119/): Denial of service in n/a (critical 9.8)
- [CVE-2016-7480](https://insights.sbomify.com/CVE-2016-7480/): Deserialization in PHP before 7.0.12 (critical 9.8)
- [CVE-2017-5340](https://insights.sbomify.com/CVE-2017-5340/): Integer overflow in n/a (critical 9.8)
- [CVE-2017-11147](https://insights.sbomify.com/CVE-2017-11147/): Information disclosure in n/a (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-5490 and fix it if it is affected.

What it is: CVE-2018-5490 is a high-severity missing authorization vulnerability in Netapp Clustered Data Ontap, published on 3 Aug 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-5490 in the wild and no public exploit code.

Affected product: Netapp Clustered Data Ontap. 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-2018-5490/ (Markdown: https://insights.sbomify.com/CVE-2018-5490/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-5490
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-5490
- OSV: https://osv.dev/vulnerability/CVE-2018-5490

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-5490/
Summaries are generated and may contain mistakes; the official description above is the record.