CVE-2022-32152: 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 d...

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. How...

What to do

Update splunk splunk to version 9.0 or later.
Update splunk splunk_cloud_platform to version 8.2.2203 or later.

Affected software

Vendor	Product	Affected versions
splunk	splunk	< 9.0 `cpe:2.3:a:splunk:splunk:::::enterprise:::*`
splunk	splunk_cloud_platform	< 8.2.2203 `cpe:2.3:a:splunk:splunk_cloud_platform::::::::`

Original advisory text

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 d...

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.

References

https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnam... Mitigation Vendor Advisory
https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/Updates Release Notes Vendor Advisory
https://research.splunk.com/application/splunk_digital_certificates_infrastructu... Mitigation Vendor Advisory
https://research.splunk.com/application/splunk_digital_certificates_lack_of_encr... Mitigation Vendor Advisory
https://research.splunk.com/application/splunk_protocol_impersonation_weak_encry... 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.html Vendor Advisory