// For flags

CVE-2021-29943

Apache Solr Unprivileged users may be able to perform unauthorized read/write to collections

Severity Score

9.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

When using ConfigurableInternodeAuthHadoopPlugin for authentication, Apache Solr versions prior to 8.8.2 would forward/proxy distributed requests using server credentials instead of original client credentials. This would result in incorrect authorization resolution on the receiving hosts.

Cuando se usa la función ConfigurableInternodeAuthHadoopPlugin para la autenticación, Apache Solr versiones anteriores a versión 8.8.2 reenviaría y realizaría proxy de unas peticiones distribuidas usando unas credenciales del servidor en lugar de las credenciales originales del cliente. Esto podría resultar en una resolución de autorización incorrecta en los hosts receptores

*Credits: Geza Nagy
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-04-01 CVE Reserved
  • 2021-04-13 CVE Published
  • 2024-08-03 CVE Updated
  • 2025-04-01 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-863: Incorrect Authorization
CAPEC
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"
 < 8.8.2
Search vendor "Apache" for product "Solr" and version " < 8.8.2"
-
Affected