What it is about

Ruby on Rails ist ein in der Programmiersprache Ruby geschriebenes und quelloffenes Web Application Framework. Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Ruby on Rails ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen.

Under what conditions?

Over the network and without logging in. This is the most dangerous combination: attackers can scan reachable devices automatically.

What can happen in the worst case

An attacker could use the vulnerability to

• einen Cross-Site Scripting Angriff durchzuführen

Am I affected?

Affected according to the BSI:

• Debian Linux
• SUSE openSUSE
• Open Source Ruby on Rails <7.0.8.7
• Open Source Ruby on Rails <7.1.5.1
• Open Source Ruby on Rails <7.2.2.1
• Open Source Ruby on Rails <8.0.0.1

The installed version is usually shown under “Help → About” or in the device’s admin interface.

What helps?

Update to at least:

• Open Source Ruby on Rails 7.0.8.7
• Open Source Ruby on Rails 7.1.5.1
• Open Source Ruby on Rails 7.2.2.1
• Open Source Ruby on Rails 8.0.0.1

Is the vulnerability already being exploited?

None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.