Splunk Enterprise lacked TLS host name validation
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-295.
Summary
Splunk Enterprise peers in Splunk Enterprise versions before 9.0 and Splunk Cloud Platform versions before 8.2.2203 did not validate the TLS certificates during Splunk-to-Splunk communications by default. Splunk peer communications configured properly with valid certificates were not vulnerable. However, an attacker with administrator credentials could add a peer without a valid certificate and connections from misconfigured nodes without valid certificates did not fail by default. For Splunk Enterprise, update to Splunk Enterprise version 9.0 and Configure TLS host name validation for Splunk-to-Splunk communications (https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValidation) to enable the remediation.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Splunk | Splunk Enterprise | 9.0 to before 9.0 | 9.0 | Patch available | CNA |
| Splunk | Splunk Cloud Platform | 8.2 to before 8.2.2203 | 8.2.2203 | Patch available | CNA |
Remediation
- Fix · CNA Splunk Enterprise (Splunk, Inc) Fixed in 9.0
- Fix · CNA Splunk Cloud Platform (Splunk, Inc) Fixed in 8.2.2203
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Splunk Enterprise 9.0
4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2022-13883 Splunk Enterprise disabled TLS validation using the CA certificate stores in Python 3 libraries by defaultPriority MEDIUM 41
- TI-2022-13886 Risky commands warnings in Splunk Enterprise DashboardsPriority LOW 38
- TI-2022-13889 Splunk Enterprise deployment servers allow unauthenticated forwarder bundle downloadsPriority LOW 36
- Release ·
Splunk Cloud Platform 8.2.2203
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2022-13883 Splunk Enterprise disabled TLS validation using the CA certificate stores in Python 3 libraries by defaultPriority MEDIUM 41
Timeline
- 2026-10-02 Threatist record created from CVE-2022-32153
- 2026-10-03 Alias added: GHSA-3vq3-mvhh-hjcp
References
Advisory 7
- https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValidation
- https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/Updates
- https://research.splunk.com/application/splunk_digital_certificates_infrastructure_version/
- https://research.splunk.com/application/splunk_digital_certificates_lack_of_encryption/
- https://research.splunk.com/application/splunk_protocol_impersonation_weak_encryption_selfsigned/
- https://research.splunk.com/network/splunk_identified_ssl_tls_certificates/
- https://www.splunk.com/en_us/product-security/announcements/svd-2022-0603.html
More Splunk vulnerabilities
- TI-2026-16444 Unauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk Enterprise KEVCVSS 3.1CRITICAL 9.8
- TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
- TI-2023-24841 Remote code execution (RCE) in Splunk Enterprise through Insecure XML Parsing CVSS 3.1HIGH 8.8
- TI-2023-15979 ‘edit_user’ Capability Privilege Escalation CVSS 3.1HIGH 8.8
- TI-2024-30707 Remote Code Execution (RCE) due to insecure session storage configuration in Splunk Enterprise on Windows CVSS 3.1HIGH 8.8
- TI-2022-21345 Reflected Cross-Site Scripting via the radio template in Splunk Enterprise CVSS 3.1HIGH 8.8
Sources
- CVE-2022-32153 · CVE Program
- CVE-2022-32153 · NVD
- FIRST EPSS
- GHSA-3vq3-mvhh-hjcp · GitHub Advisory Database · CC BY 4.0
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