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prionPRIOn knowledge basePRION:CVE-2019-17558
HistoryDec 30, 2019 - 5:15 p.m.

Remote code execution

2019-12-3017:15:00
PRIOn knowledge base
www.prio-n.com
11

AI Score

7.5

Confidence

High

EPSS

0.975

Percentile

100.0%

Apache Solr 5.0.0 to Apache Solr 8.3.1 are vulnerable to a Remote Code Execution through the VelocityResponseWriter. A Velocity template can be provided through Velocity templates in a configset velocity/ directory or as a parameter. A user defined configset could contain renderable, potentially malicious, templates. Parameter provided templates are disabled by default, but can be enabled by setting params.resource.loader.enabled by defining a response writer with that setting set to true. Defining a response writer requires configuration API access. Solr 8.4 removed the params resource loader entirely, and only enables the configset-provided template rendering when the configset is trusted (has been uploaded by an authenticated user).

References