CVE-2023-50298

Apache Solr: Solr can expose ZooKeeper credentials via Streaming Expressions

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

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.

Exposición de información confidencial a una vulnerabilidad de actor no autorizado en Apache Solr. Este problema afecta a Apache Solr: desde 6.0.0 hasta 8.11.2, desde 9.0.0 antes de 9.4.1. Solr Streaming Expressions permite a los usuarios extraer datos de otras nubes Solr, utilizando un parámetro "zkHost". Cuando SolrCloud original está configurado para usar las credenciales y ACL de ZooKeeper, se enviarán a cualquier "zkHost" que proporcione el usuario. Un atacante podría configurar un servidor para simular ZooKeeper, que acepte solicitudes de ZooKeeper con credenciales y ACL y extraiga la información confidencial, luego envíe una expresión de transmisión usando la dirección del servidor simulado en "zkHost". Las expresiones de transmisión se exponen a través del controlador "/streaming", con permisos de "lectura". Se recomienda a los usuarios actualizar a la versión 8.11.3 o 9.4.1, que soluciona el problema. A partir de estas versiones, solo los valores de zkHost que tengan la misma dirección de servidor (independientemente de chroot) utilizarán las credenciales y ACL proporcionadas de ZooKeeper al conectarse.

*Credits: Qing Xu

CVSS Scores

NISTv3.1 7.5

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-12-06 CVE Reserved
2024-02-09 CVE Published
2024-08-16 EPSS Updated
2024-08-19 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWE-922: Insecure Storage of Sensitive Information

CAPEC

References (3)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2024/02/09/2	Mailing List
http://www.openwall.com/lists/oss-security/2024/02/09/3	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://solr.apache.org/security.html#cve-2023-50298-apache-solr-can-expose-zookeeper-credentials-via-streaming-expressions	2024-02-15

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apache Search vendor "Apache"		Solr Search vendor "Apache" for product "Solr"				>= 6.0.0 < 8.11.3 Search vendor "Apache" for product "Solr" and version " >= 6.0.0 < 8.11.3"		-		Affected
Apache Search vendor "Apache"		Solr Search vendor "Apache" for product "Solr"				>= 9.0.0 < 9.4.1 Search vendor "Apache" for product "Solr" and version " >= 9.0.0 < 9.4.1"		-		Affected