CVE-2025-20370

Denial of Service (DoS) through Multiple LDAP Bind Requests in Splunk Enterprise

State
Published
Severity
4.9 Medium
Published
Oct 1, 2025
Updated
Oct 1, 2025
Reserved
Oct 10, 2024

Read the record on cve.org

Description

In Splunk Enterprise versions below 10.0.1, 9.4.4, 9.3.6, and 9.2.8, and Splunk Cloud Platform versions below 9.3.2411.108, 9.3.2408.118 and 9.2.2406.123, a user who holds a role that contains the high-privilege capability `change_authentication`, could send multiple LDAP bind requests to a specific internal endpoint, resulting in high server CPU usage, which could potentially lead to a denial of service (DoS) until the Splunk Enterprise instance is restarted. See https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.0/manage-splunk-platform-users-and-roles/define-roles-on-the-splunk-platform-with-capabilities and https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.0/use-ldap-as-an-authentication-scheme/configure-ldap-with-splunk-web#cfe47e31_007f_460d_8b3d_8505ffc3f0dd__Configure_LDAP_with_Splunk_Web for more information.

Scores

CVSSScoreVectorSource
3.14.9 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:Hcisco

Weaknesses

  • CWE-400 The software does not properly control the allocation and maintenance of a limited resource thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

Affected Products

ProductVersions
Splunk EnterpriseSplunk
  • 10.0 to before 10.0.1Affected
  • 9.4 to before 9.4.4Affected
  • 9.3 to before 9.3.6Affected
  • 9.2 to before 9.2.8Affected
Splunk Enterprise CloudSplunk
  • 9.3.2411 to before 9.3.2411.108Affected
  • 9.3.2408 to before 9.3.2408.118Affected
  • 9.2.2406 to before 9.2.2406.123Affected

References

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