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 serious flaw in the web framework could let an attacker with no login upload a specially crafted file and write files onto a website's server. The risk applies to apps that handle uploads using , and the Rails project has released fixes.

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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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