CVE-2022-32156 Splunk Enterprise and Universal Forwarder CLI connections lacked TLS cert validation
Attackers can intercept CLI traffic via MITM because TLS certificate validation is disabled by default, requiring manual configuration to fix.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-32156?
CVE-2022-32156 is a high-severity vulnerability in Splunk Splunk, published on 14 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-295
Which versions are affected by CVE-2022-32156?
It affects 2 products.
Products include Splunk Splunk, Splunk Universal Forwarder.
How do I fix CVE-2022-32156?
No fix has been published for CVE-2022-32156 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-32156 being exploited?
There is no known exploitation of CVE-2022-32156 in the wild and no public exploit code.
Other vulnerabilities in Splunk Splunk
- CVE-2026-20253 Splunk Enterprise Missing Authentication for Critical Function
- CVE-2026-76268 Missing Authentication for Critical Function in the Patroni REST API in Splunk Enterprise
- CVE-2026-76284 Improper Neutralization in Splunk Enterprise
- CVE-2026-76285 Improper Adherence to Coding Standards in Splunk Enterprise
- CVE-2017-17067 Auth bypass in n/a
Sources
Also known as GHSA-775p-gpqh-xf63.