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CVE-2023-50298

Apache Solr: Solr can expose ZooKeeper credentials via Streaming Expressions

Published: Feb 9, 2024Updated: Feb 13, 2025 Sources: CVE List NVD GHSA BDUCWE-200
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.6%
Top 27.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Solr.This issue affects Apache Solr: from 6.0.0 through 8.11.2, from 9.0.0 before 9.4.1. Solr Streaming Expressions allows users to extract data from other Solr Clouds, using a "zkHost" parameter. When original SolrCloud is setup to use ZooKeeper credentials and ACLs, they will be sent to whatever "zkHost" the user provides. An attacker could setup a server to mock ZooKeeper, that accepts ZooKeeper requests with credentials and ACLs and extracts the sensitive information, then send a streaming expression using the mock server's address in "zkHost". Streaming Expressions are exposed via the "/streaming" handler, with "read" permissions. Users are recommended to upgrade to version 8.11.3 or 9.4.1, which fix the issue. From these versions on, only zkHost values that have the same server address (regardless of chroot), will use the given ZooKeeper credentials and ACLs when connecting.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-200NVD-CWE-noinfoCWE-922

Affected Products

Apache SolrApache Software Foundation
On-premWeb App
Web & CMS Plugins
solrapache
On-premWeb App
Web & CMS Plugins / cms-core
org.apache.solr:solr-solrj-streamingMavenOSS Libraries
org.apache.solr:solr-solrjMavenOSS Libraries
SolrApache Software Foundation
Mixed
Web & CMS Plugins / cms-core
apache software foundationoss-projectUSWeb & CMS Pluginsaka apache foundation
apacheoss-projectUSWeb & CMS Pluginsaka apache http server, apache httpd
mavenpackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Credential Access
View detailed technique mapping

References

https://solr.apache.org/security.html#cve-2023-50298-apache-solr-can-expose-zookeeper-credentials-via-streaming-expressions
solr.apache.org
http://www.openwall.com/lists/oss-security/2024/02/09/3
openwall.com
http://www.openwall.com/lists/oss-security/2024/02/09/2
openwall.com
and 5 more references View all →

Timeline

Published
Feb 9, 2024
Last Updated
Feb 13, 2025

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