# CVE-2018-0427: Command injection in Digital Network Architecture (DNA) Center

> Authenticated attackers can execute arbitrary commands with root privileges via the CronJob scheduler API in Cisco DNA Center.

- **Severity:** High 8.8 (`CVSS:3.1/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:** 15 Aug 2018
- **Updated:** 26 Nov 2024
- **Also known as:** GHSA-c4xx-c8c8-x26x

## What is CVE-2018-0427?

CVE-2018-0427 is a high-severity command injection vulnerability in Cisco Systems, Inc. Digital Network Architecture (DNA) Center, published on 15 Aug 2018. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability in the CronJob scheduler API of Cisco Digital Network Architecture (DNA) Center could allow an authenticated, remote attacker to perform a command injection attack. The vulnerability is due to incorrect input validation of user-supplied data. An attacker could exploit this vulnerability by sending a malicious packet. A successful exploit could allow the attacker to execute arbitrary commands with root privileges. Cisco Bug IDs: CSCvi42263.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command), CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2018-0427?

It affects 1 product.


Products: Cisco Application Policy Infrastructure Controller Enterprise Module.

## How do I fix CVE-2018-0427?

No fix has been published for CVE-2018-0427 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-0427 being exploited?

There is no known exploitation of CVE-2018-0427 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Systems, Inc. Digital Network Architecture (DNA) Center

- [CVE-2017-12262](https://insights.sbomify.com/CVE-2017-12262/): Misconfiguration in Cisco Application Policy Infrastructure Controller Enterprise Module (high 8.8)
- [CVE-2016-1365](https://insights.sbomify.com/CVE-2016-1365/): Command injection in n/a (high 8.8)
- [CVE-2018-0368](https://insights.sbomify.com/CVE-2018-0368/): Information disclosure in Cisco Digital Network Architecture Center unknown (high 7.8)
- [CVE-2016-1386](https://insights.sbomify.com/CVE-2016-1386/): Missing authorization in n/a (high 7.5)
- [CVE-2016-1318](https://insights.sbomify.com/CVE-2016-1318/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-0427 and fix it if it is affected.

What it is: CVE-2018-0427 is a high-severity command injection vulnerability in Cisco Systems, Inc. Digital Network Architecture (DNA) Center, published on 15 Aug 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-2018-0427 in the wild and no public exploit code.

Affected product: Cisco Systems, Inc. Digital Network Architecture (DNA) Center. 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-2018-0427/ (Markdown: https://insights.sbomify.com/CVE-2018-0427/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-0427
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-0427
- OSV: https://osv.dev/vulnerability/CVE-2018-0427

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-0427/
Summaries are generated and may contain mistakes; the official description above is the record.