CVE-2023-50290: Solr core Apache Solr Allows Read Access Vulnerability

MODERATE
Advisory Identifier: GHSA-gg7w-pw2r-x2cq
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CVSS 6.5
CWE-200
Published
Advisory Summary

CVE-2023-50290 is a MODERATE (CVSS 6.5) apache solr allows read access vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Solr core libraries in the Maven ecosystem. The issue involves apache solr allows read access to host environmet variables. Remediation is available by upgrading affected packages to version 9.3.0.

CVE-2023-50290 at a Glance

CVE Identifier CVE-2023-50290
GHSA Identifier GHSA-gg7w-pw2r-x2cq
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Solr core
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2023-50290

To remediate this vulnerability, upgrade all affected Solr core dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.apache.solr:solr-core fixed: 9.3.0 
<dependency>
    <groupId>org.apache.solr</groupId>
    <artifactId>solr-core</artifactId>
    <version>9.3.0</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.apache.solr

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2023-50290, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.apache.solr

Analyze the terminal output to locate any version of Solr core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 9.3.0), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.apache.solr command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In Solr core, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Solr. The Solr Metrics API publishes all unprotected environment variables available to each Apache Solr instance. Users are able to specify which environment variables to hide, however, the default list is designed to work for known secret Java system properties. Environment variables cannot be strictly defined in Solr, like Java system properties can be, and may be set for the entire host, unlike Java system properties which are set per-Java-proccess. The Solr Metrics API is protected by the "metrics-read" permission. Therefore, Solr Clouds with Authorization setup will only be vulnerable via users with the "metrics-read" permission. This issue affects Apache Solr: from 9.0.0 before 9.3.0. Users are recommended to upgrade to version 9.3.0 or later, in which environment variables are not published via the Metrics API.

CVE-2023-50290 Affected Solr core Versions

1 component(s)
Fixed Versions:
9.3.0
Product / Package Ecosystem Affected Versions Fixed Version
org.apache.solr:solr-core
maven/org.apache.solr/solr-core
Maven
≥ 9.0.0
< 9.3.0
9.3.0

References

NVD — CVE-2023-50290 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-50290
Security Fix Commit FIX COMMIT
https://github.com/apache/solr/commit/35fc4bdc48171d9a64251c54a1e76deb558cf9d8
Solr core Source Repository REPOSITORY
https://github.com/apache/lucene-solr
issues.apache.org/jira/browse/solr-16... WEB
https://issues.apache.org/jira/browse/SOLR-16808
Solr core Security Information SECURITY
https://solr.apache.org/security.html#cve-2023-50290-apache-solr-allows-read-access-to-host-environment-variables

Frequently Asked Questions

What is CVE-2023-50290?
CVE-2023-50290 is a security vulnerability in Solr core involving Apache Solr allows read access to host environmet variables under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Solr core versions are affected?
Affected versions include releases prior to 9.3.0 across affected packages: org.apache.solr:solr-core.
What version fixes CVE-2023-50290?
Upgrading to 9.3.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is solr-core affected?
Yes, org.apache.solr:solr-core is affected in releases prior to 9.3.0. Upgrade your dependency to 9.3.0 or later.
What is the CVSS score of CVE-2023-50290?
CVE-2023-50290 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2023-50290?
CVE-2023-50290 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check Maven dependencies for CVE-2023-50290?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.apache.solr'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-gg7w-pw2r-x2cq",
  "modified" : "2024-01-22T21:32:38Z",
  "published" : "2024-01-15T12:30:19Z",
  "aliases" : [ "CVE-2023-50290" ],
  "summary" : "Apache Solr allows read access to host environmet variables",
  "details" : "Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Solr.\n\nThe Solr Metrics API publishes all unprotected environment variables available to each Apache Solr instance. Users are able to specify which environment variables to hide, however, the default list is designed to work for known secret Java system properties. Environment variables cannot be strictly defined in Solr, like Java system properties can be, and may be set for the entire host, unlike Java system properties which are set per-Java-proccess.\n\nThe Solr Metrics API is protected by the \"metrics-read\" permission. Therefore, Solr Clouds with Authorization setup will only be vulnerable via users with the \"metrics-read\" permission.\n\nThis issue affects Apache Solr: from 9.0.0 before 9.3.0.\n\nUsers are recommended to upgrade to version 9.3.0 or later, in which environment variables are not published via the Metrics API.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.solr:solr-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0"
      }, {
        "fixed" : "9.3.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-50290"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/solr/commit/35fc4bdc48171d9a64251c54a1e76deb558cf9d8"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/apache/lucene-solr"
  }, {
    "type" : "WEB",
    "url" : "https://issues.apache.org/jira/browse/SOLR-16808"
  }, {
    "type" : "WEB",
    "url" : "https://solr.apache.org/security.html#cve-2023-50290-apache-solr-allows-read-access-to-host-environment-variables"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-01-16T20:36:50Z",
    "nvd_published_at" : "2024-01-15T10:15:26Z"
  }
}