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CVE-2019-17558

Published: Dec 30, 2019Updated: Oct 27, 2025 Sources: CVE List NVD GHSA BDUCWE-74
NVD MITRE
7.5CVSSHIGH
EPSS Score
98.6%
Top 0.1%
CISA KEV
Active Exploitation
Since Nov 3, 2021
Exploits
1 Known
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

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).

CVSS Vector Breakdown

AV:NAC:HPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-74

Affected Products

Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
UbuntuCanonical Ltd.
On-premOS
Operating Systems / linux-distro
Primavera UnifierOracle Corp.
On-premWeb App
Enterprise Software / itsm-monitoring
SolrApache Software Foundation
On-premLibrary
OSS Libraries / generic-library
Apache Solrn/a
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
canonical ltd.commercialGBOperating Systemsaka canonical
oracle corp.commercialUSDatabasesaka oracle
apache software foundationoss-projectUSWeb & CMS Pluginsaka apache foundation
and 3 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Nov 3, 2021
Remediation due:May 3, 2022

Required action: Apply updates per vendor instructions.

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://www.oracle.com/security-alerts/cpuoct2020.html
oracle.com
https://issues.apache.org/jira/browse/SOLR-13971
issues.apache.org
https://ubuntu.com/security/CVE-2019-17558
ubuntu.com
and 62 more references View all →

Timeline

Published
Dec 30, 2019
Added to CISA KEV
Nov 3, 2021
Last Updated
Oct 27, 2025

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