# CVE-2019-1911: Cisco Unified Communications Domain Manager Restricted Shell Escape Vulnerability

> An authenticated local attacker can escape the restricted shell in Cisco Unified CDM to execute arbitrary commands with user privileges.

- **Severity:** Medium 5.3 (`CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Jul 2019
- **Updated:** 21 Nov 2024
- **Also known as:** GHSA-m9rx-h823-vf8r

## What is CVE-2019-1911?

CVE-2019-1911 is a medium-severity command injection vulnerability in Cisco Unified Communications Domain Manager, published on 6 Jul 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability in the CLI of Cisco Unified Communications Domain Manager (Cisco Unified CDM) Software could allow an authenticated, local attacker to escape the restricted shell. The vulnerability is due to insufficient input validation of shell commands. An attacker could exploit this vulnerability by executing crafted commands in the shell. A successful exploit could allow the attacker to escape the restricted shell and access commands in the context of the restricted shell user, which does not have root privileges.

Weakness: CWE-216 (DEPRECATED: Containment Errors (Container Errors))

## Which versions are affected by CVE-2019-1911?

It affects 1 product.


Products: Cisco Hosted Collaboration Solution.

## How do I fix CVE-2019-1911?

No fix has been published for CVE-2019-1911 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-1911 being exploited?

There is no known exploitation of CVE-2019-1911 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Unified Communications Domain Manager

- [CVE-2015-0741](https://insights.sbomify.com/CVE-2015-0741/): Cross-site request forgery in n/a (medium 6.8)
- [CVE-2015-0750](https://insights.sbomify.com/CVE-2015-0750/): Command injection in n/a (medium 6.5)
- [CVE-2018-0386](https://insights.sbomify.com/CVE-2018-0386/): Cross-site scripting in Unified Communications Domain Manager Software (medium 6.1)
- [CVE-2019-15968](https://insights.sbomify.com/CVE-2019-15968/): Cisco Unified Communications Domain Manager Persistent Cross-Site Scripting Vulnerability (medium 5.4)
- [CVE-2014-2121](https://insights.sbomify.com/CVE-2014-2121/): Denial of service in n/a (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-1911 and fix it if it is affected.

What it is: CVE-2019-1911 is a medium-severity command injection vulnerability in Cisco Unified Communications Domain Manager, published on 6 Jul 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-1911 in the wild and no public exploit code.

Affected product: Cisco Unified Communications Domain Manager. 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-2019-1911/ (Markdown: https://insights.sbomify.com/CVE-2019-1911/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-1911
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-1911
- OSV: https://osv.dev/vulnerability/CVE-2019-1911

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-1911/
Summaries are generated and may contain mistakes; the official description above is the record.