# CVE-2016-5676: Missing authorization in n/a

> Remote attackers can reset the administrator password via an unauthorized action, leading to full device compromise.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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:** 31 Aug 2016
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-mhfq-mh5j-8qxc

## What is CVE-2016-5676?

CVE-2016-5676 is a high-severity missing authorization vulnerability in n/a, published on 31 Aug 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

cgi-bin/cgi_system in NUUO NVRmini 2 1.7.5 through 2.x, NUUO NVRsolo 1.7.5 through 2.x, and NETGEAR ReadyNAS Surveillance 1.1.1 through 1.4.1 allows remote attackers to reset the administrator password via a cmd=loaddefconfig action.

Weakness: CWE-285 (Improper Authorization)

## Which versions are affected by CVE-2016-5676?

It affects 3 products.


Products: Netgear Readynas Surveillance, Nuuo Nvrmini 2, Nuuo Nvrsolo.

## How do I fix CVE-2016-5676?

No fix has been published for CVE-2016-5676 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-5676 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-5676 exists.

Public exploit code:

- NUUO NVRmini 2 / NETGEAR ReadyNAS Surveillance Default Configuration Load and Administrator Password Reset (metasploit)
- NUUO NVRmini2 / NVRsolo / Crystal Devices / NETGEAR ReadyNAS Surveillance Application - Multiple Vulnerabilities (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2016-5674](https://insights.sbomify.com/CVE-2016-5674/): Code injection in n/a (critical 9.8)
- [CVE-2016-5675](https://insights.sbomify.com/CVE-2016-5675/): Code injection in n/a (critical 9.8)
- [CVE-2016-11056](https://insights.sbomify.com/CVE-2016-11056/): Auth bypass in n/a (high 8.8)
- [CVE-2016-5679](https://insights.sbomify.com/CVE-2016-5679/): Command injection in n/a (high 8.8)
- [CVE-2016-5680](https://insights.sbomify.com/CVE-2016-5680/): Memory corruption in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-5676 and fix it if it is affected.

What it is: CVE-2016-5676 is a high-severity missing authorization vulnerability in n/a, published on 31 Aug 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-5676 exists.

Affected product: n/a. 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-2016-5676/ (Markdown: https://insights.sbomify.com/CVE-2016-5676/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-5676
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-5676
- OSV: https://osv.dev/vulnerability/CVE-2016-5676

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From sbomify Insights: https://insights.sbomify.com/CVE-2016-5676/
Summaries are generated and may contain mistakes; the official description above is the record.