CVE-2023-50292 Apache Solr: Solr Schema Designer blindly "trusts" all configsets, possibly leading to RCE by unauthenticated users

What is CVE-2023-50292?

CVE-2023-50292 is a high-severity missing authorization vulnerability in Apache Solr, published on 9 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Incorrect Permission Assignment for Critical Resource, Improper Control of Dynamically-Managed Code Resources vulnerability in Apache Solr.

This issue affects Apache Solr: from 8.10.0 through 8.11.2, from 9.0.0 before 9.3.0.

The Schema Designer was introduced to allow users to more easily configure and test new Schemas and configSets. However, when the feature was created, the "trust" (authentication) of these configSets was not considered. External library loading is only available to configSets that are "trusted" (created by authenticated users), thus non-authenticated users are unable to perform Remote Code Execution. Since the Schema Designer loaded configSets without taking their "trust" into account, configSets that were created by unauthenticated users were allowed to load external libraries when used in the Schema Designer.

Users are recommended to upgrade to version 9.3.0, which fixes the issue.

Weakness: CWE-732

Which versions are affected by CVE-2023-50292?

5 open source packages ship an affected version, including org.apache.solr:solr-core and solr. It affects 1 product.

Products include Apache Solr.

How do I fix CVE-2023-50292?

Upgrade org.apache.solr:solr-core to a fixed version for your release line: 8.11.3 or 9.3.0.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2023-50292 being exploited?

There is no known exploitation of CVE-2023-50292 in the wild and no public exploit code.

Other vulnerabilities in Apache Solr

• CVE-2019-17558 Apache Solr VelocityResponseWriter Plug-In Remote Code Execution Exploited High 7.5
• CVE-2019-0193 Apache Solr DataImportHandler Code Injection Exploited High 7.2
• CVE-2024-45216 Apache Solr: Authentication bypass possible using a fake URL Path ending Critical 9.8
• CVE-2021-44548 Apache Solr information disclosure vulnerability through DataImportHandler Critical 9.8
• CVE-2021-27905 SSRF vulnerability with the Replication handler Critical 9.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-solr-2023-50292, DEBIAN-CVE-2023-50292, GHSA-4wxw-42wx-2wfx.