CVEvulnerability

CVE-2019-17558

7.5 HIGH Known exploited Published 2019-12-30 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Apache Solr VelocityResponseWriter Plug-In Remote Code Execution Vulnerability — Apache Solr

The Apache Solr VelocityResponseWriter plug-in contains an unspecified vulnerability which can allow for remote code execution.

Added to KEV
2021-11-03
Remediation due
2022-05-03
Ransomware use
Unknown
Required action
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2019-17558
Status
Analyzed
Published
2019-12-30
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
4.6 MEDIUM — AV:N/AC:H/Au:S/C:P/I:P/A:P
Weaknesses
CWE-74

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 configurations

• apache solr (>= 5.0.0 < 7.7.3) • apache solr (>= 8.0.0 < 8.4.0) • oracle primavera unifier (>= 17.7 <= 17.12) • oracle primavera unifier 16.1 • oracle primavera unifier 16.2 • oracle primavera unifier 18.8 • oracle primavera unifier 19.12

Related

Weakness · CWE (1)

  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component weakness

References