# CVE-2018-0099: Command injection in Cisco D9800 Network Transport Receiver

> Authenticated attackers can inject commands into the Cisco D9800 web GUI to execute arbitrary code on the underlying operating system.

- **Severity:** High 8.8 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 18 Jan 2018
- **Updated:** 2 Dec 2024
- **Also known as:** GHSA-rw9g-792w-r53w

## What is CVE-2018-0099?

CVE-2018-0099 is a high-severity command injection vulnerability in Cisco D9800 Network Transport Receiver, published on 18 Jan 2018. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability in the web management GUI of the Cisco D9800 Network Transport Receiver could allow an authenticated, remote attacker to perform a command injection attack. The vulnerability is due to insufficient input validation of GUI command arguments. An attacker could exploit this vulnerability by injecting crafted arguments into a vulnerable GUI command. An exploit could allow the attacker to execute commands on the underlying BusyBox operating system. These commands are run at the privilege level of the authenticated user. The attacker needs valid device credentials for this attack. Cisco Bug IDs: CSCvg74691.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2018-0099?

It affects 1 product.


Products: Cisco D9800 Firmware.

## How do I fix CVE-2018-0099?

No fix has been published for CVE-2018-0099 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-0099 being exploited?

There is no known exploitation of CVE-2018-0099 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-0099 and fix it if it is affected.

What it is: CVE-2018-0099 is a high-severity command injection vulnerability in Cisco D9800 Network Transport Receiver, published on 18 Jan 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-0099 in the wild and no public exploit code.

Affected product: Cisco D9800 Network Transport Receiver. 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-2018-0099/ (Markdown: https://insights.sbomify.com/CVE-2018-0099/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-0099
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-0099
- OSV: https://osv.dev/vulnerability/CVE-2018-0099

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-0099/
Summaries are generated and may contain mistakes; the official description above is the record.