What it is about

Jenkins ist ein erweiterbarer, webbasierter Integration Server zur kontinuierlichen Unterstützung bei Softwareentwicklungen aller Art. Ein Angreifer kann mehrere Schwachstellen in Jenkins ausnutzen, um beliebigen Code auszuführen, Daten zu manipulieren, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen sowie Cross-Site-Scripting- oder Phishing-Angriffe durchzuführen.

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

• beliebigen Code auszuführen
• Daten zu manipulieren
• Sicherheitsmaßnahmen zu umgehen
• vertrauliche Informationen offenzulegen sowie Cross-Site-Scripting- oder Phishing-Angriffe durchzuführen

Am I affected?

Affected according to the BSI:

• Jenkins Jenkins Credentials Binding Plugin <720.v3f6decef43ea
• Jenkins Jenkins GitHub Plugin <1.46.0.1
• Jenkins Jenkins GitHub Branch Source Plugin <1967.1969.v205fd594c821
• Jenkins Jenkins HTML Publisher Plugin <427.1
• Jenkins Jenkins Matrix Authorization Strategy Plugin <3.2.10
• Jenkins Jenkins Microsoft Entra ID Plugin <667.v4c5827a_e74a_0
• Jenkins Jenkins Script Security Plugin <1402.v94c9ce464861

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

What helps?

Update to at least:

• Jenkins Jenkins Credentials Binding Plugin 720.v3f6decef43ea
• Jenkins Jenkins GitHub Plugin 1.46.0.1
• Jenkins Jenkins GitHub Branch Source Plugin 1967.1969.v205fd594c821
• Jenkins Jenkins HTML Publisher Plugin 427.1
• Jenkins Jenkins Matrix Authorization Strategy Plugin 3.2.10
• Jenkins Jenkins Microsoft Entra ID Plugin 667.v4c5827a_e74a_0
• Jenkins Jenkins Script Security Plugin 1402.v94c9ce464861

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.