Vulnerability in Splunk
CVE-2022-32156
In Splunk Enterprise and Universal Forwarder versions before 9.0, the Splunk command-line interface (CLI) did not validate TLS certificates while connecting to a remote Splunk platform instance by default. After updating to version 9.0, see Configure TLS host name validation for the Splunk CLI https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValidation#Configure_TLS_host_name_validation_for_the_Splunk_CLI to enable the remediation. The vulnerability does not affect the Splunk Cloud Platform. At the time of publishing, we have no evidence of exploitation of this vulnerability by external parties. The issue requires conditions beyond the control of a potential bad actor such as a machine-in-the-middle attack. Hence, Splunk rates the complexity of the attack as High.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (56.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.000
Affected products
- Splunk
- Splunk Enterprise — versions 0
- Splunk Universal Forwarder — versions 0
- Splunk Universal Forwarder
Weakness classification (CWE)
References
- www.splunk.com/en_us/product-security/announcements/svd-2022-0606.html (Vendor Advisory)
- docs.splunk.com/Documentation/Splunk/9.0.0/Security/Updates (Release Notes, Vendor Advisory)
- docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValida… (Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-32156?
- CVE-2022-32156 is a high-severity vulnerability in Splunk, classified under Improper Certificate Validation. CVSS score: 8.1/10. Published 2022-06-15.
- How severe is CVE-2022-32156?
- High severity. CVSS v3 base score is 8.1 out of 10.