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CVE-2020-8289

Backblaze for Windows before 7.0.1.433 and Backblaze for macOS before 7.0.1.434 suffer from improper certificate validation in `bztransmit`

Published
Last modified
published
Not listed in CISA KEV
1 proof of concept on GitHub

Summary

Backblaze for Windows before 7.0.1.433 and Backblaze for macOS before 7.0.1.434 suffer from improper certificate validation in `bztransmit` helper due to hardcoded whitelist of strings in URLs where validation is disabled leading to possible remote code execution via client update functionality.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • n/a Backblaze

    Version range not reported

References 7

hackerone.com

youtu.be

GitHub · geffner/CVE-2020-8289

backblaze.com

seclists.org