CVE-2023-50290 Apache Solr: Host environment variables are published via the Metrics API
Attackers with metrics-read permission can view sensitive host environment variables via the Solr Metrics API, exposing secrets.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-50290?
CVE-2023-50290 is a medium-severity vulnerability in Apache Solr, published on 15 Jan 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-200
Which versions are affected by CVE-2023-50290?
3 open source packages ship an affected version, including org.apache.solr:solr-core and solr. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.apache.solr:solr-core Maven | From 9.0.0 | 9.3.0 |
org.apache.solr:solr-core Maven | From 9.0.0 | 9.3.0 |
solr Bitnami | From 9.0.0 | 9.3.0 |
Products include Apache Solr.
How do I fix CVE-2023-50290?
Upgrade org.apache.solr:solr-core to 9.3.0 or later.
Is CVE-2023-50290 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-50290 exists.
Public exploit code: 1 Nuclei template and 1 proofs of concept on GitHub.
Other vulnerabilities in Apache Solr
- CVE-2019-17558 Apache Solr VelocityResponseWriter Plug-In Remote Code Execution
- CVE-2019-0193 Apache Solr DataImportHandler Code Injection
- CVE-2024-45216 Apache Solr: Authentication bypass possible using a fake URL Path ending
- CVE-2021-44548 Apache Solr information disclosure vulnerability through DataImportHandler
- CVE-2021-27905 SSRF vulnerability with the Replication handler
Sources
Also known as BIT-solr-2023-50290, GHSA-gg7w-pw2r-x2cq, UBUNTU-CVE-2023-50290.