Skip to main content

Exposure of Sensitive Information to an Unauthorized Actor

CVE-2023-50298

High
7.5/10

Summary

Exposure of Sensitive Information to an Unauthorized Actor Vulnerability in Apache Solr. This issue affects Apache Solr versions 6.0.0 through 8.11.2, and 9.0.0 through 9.4.0. Solr Streaming Expressions allow users to extract data from other Solr Clouds, using a "zkHost" parameter. When the original SolrCloud is setup to use ZooKeeper credentials and ACLs, they will be sent to whatever "zkHost" the user provides. An attacker could setup a server to mock ZooKeeper, which accepts ZooKeeper requests with credentials and ACLs and extracts the sensitive information, then send a streaming expression using the mock server's address in "zkHost". Streaming Expressions are exposed via the "/streaming" handler, with "read" permissions. From these versions on, only zkHost values that have the same server address (regardless of chroot), will use the given ZooKeeper credentials and ACLs when connecting.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • NONE
  • HIGH
  • NONE

CWE-200 - Information Exposure

An information exposure vulnerability is categorized as an information flow (IF) weakness, which can potentially allow unauthorized access to otherwise classified information in the application, such as confidential personal information (demographics, financials, health records, etc.), business secrets, and the application's internal environment.

References

Advisory Timeline

  • Published