HTTP: Apache Solr Remote Code Execution
This signature detects attempts to exploit a known vulnerability against Apache Solr. A successful attack can lead to arbitrary code execution.
Extended Description
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).
Affected Products
Apache solr
References
CVE: CVE-2019-17558
Short Name
HTTP:APACHE:CVE-2019-17558-RCE
Severity
Minor
Recommended
True
Recommended Action
Drop
Category
HTTP
Keywords
Apache CVE-2019-17558 Code Execution Remote Solr
Release Date
03/01/2022
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3727
False Positive
Unknown
Vendors
Oracle
Apache
CVSS Score
4.6