# CVE-2016-6452: Auth bypass in Cisco Prime Home before 6.0

> Unauthenticated remote attackers can bypass authentication in Cisco Prime Home GUI to gain full administrator privileges.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Nov 2016
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-cq4x-jvjg-rq7m

## What is CVE-2016-6452?

CVE-2016-6452 is a critical authentication bypass vulnerability in Cisco Prime Home before 6.0, published on 3 Nov 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability in the web-based graphical user interface (GUI) of Cisco Prime Home could allow an unauthenticated, remote attacker to bypass authentication. The attacker could be granted full administrator privileges. Cisco Prime Home versions 5.1.1.6 and earlier and 5.2.2.2 and earlier have been confirmed to be vulnerable. Cisco Prime Home versions 6.0 and later are not vulnerable. More Information: CSCvb71732. Known Affected Releases: 5.0 5.0(1) 5.0(1.1) 5.0(1.2) 5.0(2) 5.15.1(0) 5.1(1) 5.1(1.3) 5.1(1.4) 5.1(1.5) 5.1(1.6) 5.1(2) 5.1(2.1) 5.1(2.3) 5.25.2(0.1) 5.2(1.0) 5.2(1.2) 5.2(2.0) 5.2(2.1) 5.2(2.2).

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2016-6452?

It affects 1 product.


Products: Cisco Prime Home.

## How do I fix CVE-2016-6452?

No fix has been published for CVE-2016-6452 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-6452 being exploited?

There is no known exploitation of CVE-2016-6452 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Prime Home before 6.0

- [CVE-2016-6408](https://insights.sbomify.com/CVE-2016-6408/): XML external entity in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-6452 and fix it if it is affected.

What it is: CVE-2016-6452 is a critical authentication bypass vulnerability in Cisco Prime Home before 6.0, published on 3 Nov 2016. 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-2016-6452 in the wild and no public exploit code.

Affected product: Cisco Prime Home before 6.0. 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-2016-6452/ (Markdown: https://insights.sbomify.com/CVE-2016-6452/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-6452
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-6452
- OSV: https://osv.dev/vulnerability/CVE-2016-6452

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From sbomify Insights: https://insights.sbomify.com/CVE-2016-6452/
Summaries are generated and may contain mistakes; the official description above is the record.