[SOLR-13971] Velocity custom template RCE vulnerability

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 5.0, 5.5.5, 6.0, 6.6.5, 7.0, 7.7, 8.0, 8.3
• Fix Version/s: 7.7.3, 8.4
• Assignee: Ishan Chattopadhyaya
• Reporter: Ishan Chattopadhyaya
• Created: 26/Nov/19 16:19
• Updated: 15/Mar/21 15:09
• Resolved: 28/Nov/19 02:30

Description

We need to disable this. There is a zero day attack in the wild. 41 stars on this github project:

1. https://github.com/jas502n/solr_rce
2. https://gist.github.com/s00py/a1ba36a3689fa13759ff910e179fc133

We need to disable this in a way that cannot be re-enabled using the Config API.

Issue Links

• is related to: SOLR-14025 CVE-2019-17558: Velocity response writer RCE vulnerability persists after 8.3.1
• links to: GitHub Pull Request #1156