What it is about

Rsync ist ein Tool, um Dateien und Verzeichnisse zu synchronisieren. Ein Angreifer kann mehrere Schwachstellen in Rsync ausnutzen, um vertrauliche Informationen preiszugeben, sich erhöhte Rechte zu verschaffen und Daten zu manipulieren.

Under what conditions?

The BSI does not name any particular preconditions. Exploitable remotely according to the BSI.

What can happen in the worst case

An attacker could use the vulnerability to

• vertrauliche Informationen preiszugeben
• sich erhöhte Rechte zu verschaffen
• Daten zu manipulieren

Am I affected?

Affected according to the BSI:

• Red Hat Ansible Automation Platform 2.4
• Debian Linux
• Amazon Linux 2
• Red Hat Enterprise Linux
• Fedora Linux
• Ubuntu Linux
• SUSE Linux
• Xerox FreeFlow Print Server 9
• Oracle Linux
• Gentoo Linux
• Open Source Arch Linux
• RESF Rocky Linux

and 32 more

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

What helps?

Update to at least:

• Open Source Rsync 3.4.0
• HAProxy HAProxy Fusion virtual images 20250121
• Google Container-Optimized OS cos-dev-121-18828-0-0
• Red Hat OpenShift Container Platform 4.17.15
• Red Hat OpenShift Container Platform 4.16.33
• Red Hat OpenShift Container Platform 4.12.72
• Red Hat OpenShift Container Platform 4.14.46
• Red Hat OpenShift Container Platform 4.17.16
• Red Hat OpenShift Container Platform 4.16.34
• Red Hat OpenShift Container Platform 4.15.45
• Red Hat OpenShift 5.8.17
• Red Hat OpenShift 5.9.11

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.