# CVE-2023-31927: An information disclosure in the web interface of Brocade Fabric OS

> Remote unauthenticated attackers can obtain technical details about the web interface of Brocade Fabric OS devices.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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:** 2 Aug 2023
- **Updated:** 13 Feb 2025
- **Also known as:** GHSA-7ph4-rw5h-3cgg

## What is CVE-2023-31927?

CVE-2023-31927 is a medium-severity vulnerability in Brocade Fabric OS, published on 2 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An information disclosure in the web interface of Brocade Fabric OS versions before Brocade Fabric OS v9.2.0 and v9.1.1c, could allow a remote unauthenticated attacker to get technical details about the web interface.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2023-31927?

It affects 1 product.


Products: Broadcom Brocade Fabric Operating System.

## How do I fix CVE-2023-31927?

No fix has been published for CVE-2023-31927 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-31927 being exploited?

There is no known exploitation of CVE-2023-31927 in the wild and no public exploit code.

## Other vulnerabilities in Brocade Fabric OS

- [CVE-2023-31432](https://insights.sbomify.com/CVE-2023-31432/): Privilege issues in multiple commands (high 7.8)
- [CVE-2023-31926](https://insights.sbomify.com/CVE-2023-31926/): Arbitrary File Overwrite using less command (high 7.1)
- [CVE-2021-23133](https://insights.sbomify.com/CVE-2021-23133/): Linux Kernel sctp_destroy_sock race condition (medium 6.7)
- [CVE-2023-31928](https://insights.sbomify.com/CVE-2023-31928/): XSS vulnerability in Brocade Webtools (medium 6.3)
- [CVE-2023-31428](https://insights.sbomify.com/CVE-2023-31428/): CLI allows upload or transfer files of dangerous types (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-31927 and fix it if it is affected.

What it is: CVE-2023-31927 is a medium-severity vulnerability in Brocade Fabric OS, published on 2 Aug 2023. 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-2023-31927 in the wild and no public exploit code.

Affected product: Brocade Fabric OS. 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-2023-31927/ (Markdown: https://insights.sbomify.com/CVE-2023-31927/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-31927
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-31927
- OSV: https://osv.dev/vulnerability/CVE-2023-31927

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-31927/
Summaries are generated and may contain mistakes; the official description above is the record.