# CVE-2019-12623: Cisco Enterprise Network Functions Virtualization Infrastructure Software File Enumeration Vulnerability

> Authenticated attackers can enumerate files on Cisco NFVIS systems by analyzing web server error code differences.

- **Severity:** Medium 4.3 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N`)
- **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:** 21 Aug 2019
- **Updated:** 21 Nov 2024
- **Also known as:** GHSA-r46v-fwc3-fp9x

## What is CVE-2019-12623?

CVE-2019-12623 is a medium-severity vulnerability in Cisco Enterprise NFV Infrastructure Software, published on 21 Aug 2019. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability in the web server functionality of Cisco Enterprise Network Functions Virtualization Infrastructure Software (NFVIS) could allow an authenticated, remote attacker to perform file enumeration on an affected system. The vulnerability is due to the web server responding with different error codes for existing and non-existing files. An attacker could exploit this vulnerability by sending GET requests for different file names. A successful exploit could allow the attacker to enumerate files residing on the system.

Weakness: CWE-538 (Insertion of Sensitive Information into Externally-Accessible File or Directory)

## Which versions are affected by CVE-2019-12623?

It affects 1 product.


Products: Cisco Enterprise Network Functions Virtualization Infrastructure.

## How do I fix CVE-2019-12623?

No fix has been published for CVE-2019-12623 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-12623 being exploited?

There is no known exploitation of CVE-2019-12623 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-12623 and fix it if it is affected.

What it is: CVE-2019-12623 is a medium-severity vulnerability in Cisco Enterprise NFV Infrastructure Software, published on 21 Aug 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-12623 in the wild and no public exploit code.

Affected product: Cisco Enterprise NFV Infrastructure Software. 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-2019-12623/ (Markdown: https://insights.sbomify.com/CVE-2019-12623/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-12623
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-12623
- OSV: https://osv.dev/vulnerability/CVE-2019-12623

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-12623/
Summaries are generated and may contain mistakes; the official description above is the record.