Wednesday 4 November
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Critical Ruby on Rails flaw lets attackers write server files via crafted ImageMagick uploads

Severity
Critical
Sources
1

A critical unauthenticated file-write flaw affects apps that process uploads through Active Storage with . A crafted upload can write arbitrary files on the server. The Rails project has fixed it in versions 8.1.4.1 and 8.0.5.2.

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What to do

  1. Upgrade Ruby on Rails to version 8.1.4.1 or 8.0.5.2, depending on the release branch in use.
  2. Check whether any application processes uploads through Active Storage with ImageMagick.

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  1. Wed 4 NovemberCritical Rails Flaw Lets Attackers Write Server Files via Crafted ImageMagick UploadsThe Hacker News

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