CVE-2023-50386 Details
Improper Control of Dynamically-Managed Code Resources, Unrestricted Upload of File with Dangerous Type, Inclusion of Functionality from Untrusted Control Sphere vulnerability in Apache Solr.This issue affects Apache Solr: from 6.0.0 through 8.11.2, from 9.0.0 before 9.4.1.

In the affected versions, Solr ConfigSets accepted Java jar and class files to be uploaded through the ConfigSets API.
When backing up Solr Collections, these configSet files would be saved to disk when using the LocalFileSystemRepository (the default for backups).
If the backup was saved to a directory that Solr uses in its ClassPath/ClassLoaders, then the jar and class files would be available to use with any ConfigSet, trusted or untrusted.

When Solr is run in a secure way (Authorization enabled), as is strongly suggested, this vulnerability is limited to extending the Backup permissions with the ability to add libraries.
Users are recommended to upgrade to version 8.11.3 or 9.4.1, which fix the issue.
In these versions, the following protections have been added:

* Users are no longer able to upload files to a configSet that could be executed via a Java ClassLoader.
* The Backup API restricts saving backups to directories that are used in the ClassLoader.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2023-50386
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
82.43 Probability of exploitation activity being observed over the next 30 days (99th percentile)
CVSS score for CVE-2023-50386
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
8.8 High
Products affected by CVE-2023-50386
Solr 6.0.0
Solr 6.0.1
Solr 6.1.0
Solr 6.3.0
Solr 6.4.2
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Not available
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CVE-2023-50386 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 1,288 49.07%
NL 183 6.97%
GB 182 6.93%
CA 150 5.71%
AU 136 5.18%
DE 109 4.15%
IE 75 2.86%
SG 66 2.51%
AE 60 2.29%
JP 57 2.17%

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CVE-2023-50386 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 2,354 96.00%
Telecommunications 27 1.10%
Education 22 0.90%
Government/Politics 12 0.49%
Manufacturing 12 0.49%
Business Services 5 0.20%
Retail 5 0.20%
Real Estate 5 0.20%
Nonprofit/NGO 4 0.16%
Healthcare/Wellness 4 0.16%

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