# CVE-2016-6558: The ASUS RP-AC52 access point, firmware version 1.0.1.1s and possibly earlier, is vulnerable to command injection

> Attackers can execute arbitrary commands on ASUS RP-AC52 access points via the action_script parameter in the web interface.

- **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:** 13 Jul 2018
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-crrg-v4fm-59fp

## What is CVE-2016-6558?

CVE-2016-6558 is a critical command injection vulnerability in ASUS RP-AC52 Access Point, published on 13 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A command injection vulnerability exists in apply.cgi on the ASUS RP-AC52 access point, firmware version 1.0.1.1s and possibly earlier, web interface specifically in the action_script parameter. The action_script parameter specifies a script to be executed if the action_mode parameter does not contain a valid state. If the input provided by action_script does not match one of the hard coded options, then it will be executed as the argument of either a system() or an eval() call allowing arbitrary commands to be executed.

Weakness: CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2016-6558?

It affects 7 products.


Products: Asus Ea-N66 Firmware, Asus Rp-Ac52 Firmware, Asus Rp-Ac56 Firmware, Asus Rp-N12 Firmware, Asus Rp-N14 Firmware, Asus Rp-N53 Firmware, Asus Wmp-N12 Firmware.

## How do I fix CVE-2016-6558?

No fix has been published for CVE-2016-6558 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-6558 being exploited?

There is no known exploitation of CVE-2016-6558 in the wild and no public exploit code.

## Other vulnerabilities in ASUS RP-AC52 Access Point

- [CVE-2016-6557](https://insights.sbomify.com/CVE-2016-6557/): Cross-site request forgery in RP-AC52 Access Point (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-6558 and fix it if it is affected.

What it is: CVE-2016-6558 is a critical command injection vulnerability in ASUS RP-AC52 Access Point, published on 13 Jul 2018. 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-2016-6558 in the wild and no public exploit code.

Affected product: ASUS RP-AC52 Access Point. 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-2016-6558/ (Markdown: https://insights.sbomify.com/CVE-2016-6558/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-6558
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-6558
- OSV: https://osv.dev/vulnerability/CVE-2016-6558

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From sbomify Insights: https://insights.sbomify.com/CVE-2016-6558/
Summaries are generated and may contain mistakes; the official description above is the record.