# CVE-2020-3391: Cisco Digital Network Architecture Center Information Disclosure Vulnerability

> Authenticated attackers can view unencrypted credentials in Cisco DNA Center, enabling unauthorized access to manage network devices.

- **Severity:** Medium 6.5 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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:** 2 Jul 2020
- **Updated:** 15 Nov 2024
- **Also known as:** GHSA-jhv6-f622-9cgv

## What is CVE-2020-3391?

CVE-2020-3391 is a medium-severity vulnerability in Cisco Digital Network Architecture Center (DNA Center), published on 2 Jul 2020. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability in Cisco Digital Network Architecture (DNA) Center could allow an authenticated, remote attacker to view sensitive information in clear text. The vulnerability is due to insecure storage of certain unencrypted credentials on an affected device. An attacker could exploit this vulnerability by viewing the network device configuration and obtaining credentials that they may not normally have access to. A successful exploit could allow the attacker to use those credentials to discover and manage network devices.

Weakness: CWE-522 (Insufficiently Protected Credentials), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2020-3391?

It affects 1 product.


Products: Cisco Digital Network Architecture Center.

## How do I fix CVE-2020-3391?

No fix has been published for CVE-2020-3391 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-3391 being exploited?

There is no known exploitation of CVE-2020-3391 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Digital Network Architecture Center (DNA Center)

- [CVE-2018-0222](https://insights.sbomify.com/CVE-2018-0222/): Hardcoded credentials in Cisco Digital Network Architecture Center (critical 10.0)
- [CVE-2018-0268](https://insights.sbomify.com/CVE-2018-0268/): Misconfiguration in Cisco Digital Network Architecture Center (critical 10.0)
- [CVE-2018-0448](https://insights.sbomify.com/CVE-2018-0448/): Cisco Digital Network Architecture Center Authentication Bypass Vulnerability (critical 9.8)
- [CVE-2018-15386](https://insights.sbomify.com/CVE-2018-15386/): Cisco Digital Network Architecture Center Unauthenticated Access Vulnerability (critical 9.8)
- [CVE-2018-0271](https://insights.sbomify.com/CVE-2018-0271/): Auth bypass in Cisco Digital Network Architecture Center (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-3391 and fix it if it is affected.

What it is: CVE-2020-3391 is a medium-severity vulnerability in Cisco Digital Network Architecture Center (DNA Center), published on 2 Jul 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-3391 in the wild and no public exploit code.

Affected product: Cisco Digital Network Architecture Center (DNA Center). 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-2020-3391/ (Markdown: https://insights.sbomify.com/CVE-2020-3391/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-3391
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-3391
- OSV: https://osv.dev/vulnerability/CVE-2020-3391

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-3391/
Summaries are generated and may contain mistakes; the official description above is the record.