Information disclosure in Apache Solr

CVE-2023-50290

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.

Vulnerability class: Information Disclosure

EPSS: 0.684 (99.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-50290?
CVE-2023-50290 is a medium-severity vulnerability in Apache Solr, classified under Information Disclosure. CVSS score: 6.5/10. Published 2024-01-15.
How severe is CVE-2023-50290?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2023-50290 known to be exploited?
27 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.