CVE-2022-32152
Splunk peer communications configured properly with valid certificates were not vulnerable.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.94%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.94% probability · 59th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-295
- Affected
- splunk/splunk · splunk/splunk cloud platform
- Source
- prodsec@splunk.com
References
- https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValidationMitigation, Vendor Advisory
- https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/UpdatesRelease Notes, Vendor Advisory
- https://research.splunk.com/application/splunk_digital_certificates_infrastructure_version/Mitigation, Vendor Advisory
- https://research.splunk.com/application/splunk_digital_certificates_lack_of_encryption/Mitigation, Vendor Advisory
- https://research.splunk.com/application/splunk_protocol_impersonation_weak_encryption_selfsigned/Mitigation, Vendor Advisory
- https://research.splunk.com/network/splunk_identified_ssl_tls_certificates/Mitigation, Vendor Advisory
- https://www.splunk.com/en_us/product-security/announcements/svd-2022-0602.htmlVendor Advisory
- https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValidationMitigation, Vendor Advisory
- https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/UpdatesRelease Notes, Vendor Advisory
- https://research.splunk.com/application/splunk_digital_certificates_infrastructure_version/Mitigation, Vendor Advisory
- https://research.splunk.com/application/splunk_digital_certificates_lack_of_encryption/Mitigation, Vendor Advisory
- https://research.splunk.com/application/splunk_protocol_impersonation_weak_encryption_selfsigned/Mitigation, Vendor Advisory
- https://research.splunk.com/network/splunk_identified_ssl_tls_certificates/Mitigation, Vendor Advisory
- https://www.splunk.com/en_us/product-security/announcements/svd-2022-0602.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.