# CVE-2020-3148: Cisco Prime Network Registrar Cross-Site Request Forgery Vulnerability

> An attacker can trick an admin into clicking a link to modify device configuration and create privileged user accounts.

- **Severity:** High 7.1 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 4 Mar 2020
- **Updated:** 15 Nov 2024
- **Also known as:** GHSA-225v-j4r6-q4hx

## What is CVE-2020-3148?

CVE-2020-3148 is a high-severity vulnerability in Cisco Prime Network Registrar, published on 4 Mar 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A vulnerability in the web-based interface of Cisco Prime Network Registrar (CPNR) could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack on an affected system. The vulnerability is due to insufficient CSRF protections in the web-based interface. An attacker could exploit this vulnerability by persuading a targeted user, with an active administrative session on the affected device, to click a malicious link. A successful exploit could allow an attacker to change the device's configuration, which could include the ability to edit or create user accounts of any privilege level. Some changes to the device's configuration could negatively impact the availability of networking services for other devices on networks managed by CPNR.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2020-3148?

It affects 1 product.


Products: Cisco Prime Network Registrar.

## How do I fix CVE-2020-3148?

No fix has been published for CVE-2020-3148 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-3148 being exploited?

There is no known exploitation of CVE-2020-3148 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Prime Network Registrar

- [CVE-2019-1840](https://insights.sbomify.com/CVE-2019-1840/): Cisco Prime Network Registrar Denial of Service Vulnerability (high 8.6)
- [CVE-2020-3272](https://insights.sbomify.com/CVE-2020-3272/): Cisco Prime Network Registrar DHCP Denial of Service Vulnerability (high 7.5)
- [CVE-2016-1427](https://insights.sbomify.com/CVE-2016-1427/): Information disclosure in n/a (high 7.5)
- [CVE-2015-6296](https://insights.sbomify.com/CVE-2015-6296/): Hardcoded credentials in n/a (high 7.2)
- [CVE-2017-6613](https://insights.sbomify.com/CVE-2017-6613/): Denial of service in Cisco Prime Network Registrar (medium 5.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-3148 and fix it if it is affected.

What it is: CVE-2020-3148 is a high-severity vulnerability in Cisco Prime Network Registrar, published on 4 Mar 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-3148 in the wild and no public exploit code.

Affected product: Cisco Prime Network Registrar. 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-2020-3148/ (Markdown: https://insights.sbomify.com/CVE-2020-3148/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-3148
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-3148
- OSV: https://osv.dev/vulnerability/CVE-2020-3148

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-3148/
Summaries are generated and may contain mistakes; the official description above is the record.