CVE-2022-32156
Splunk Enterprise and Universal Forwarder CLI connections lacked TLS cert validation
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.
INFO
Published Date :
June 15, 2022, 5:15 p.m.
Last Modified :
Nov. 21, 2024, 7:05 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Upgrade Splunk Enterprise or Universal Forwarder to version 9.0 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-32156.
| URL | Resource |
|---|---|
| https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValidation#Configure_TLS_host_name_validation_for_the_Splunk_CLI | Mitigation Vendor Advisory |
| https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/Updates | Release Notes Vendor Advisory |
| https://www.splunk.com/en_us/product-security/announcements/svd-2022-0606.html | Vendor Advisory |
| https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValidation#Configure_TLS_host_name_validation_for_the_Splunk_CLI | Mitigation Vendor Advisory |
| https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/Updates | Release Notes Vendor Advisory |
| https://www.splunk.com/en_us/product-security/announcements/svd-2022-0606.html | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-32156 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-32156
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-32156 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-32156 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValidation#Configure_TLS_host_name_validation_for_the_Splunk_CLI Added Reference https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/Updates Added Reference https://www.splunk.com/en_us/product-security/announcements/svd-2022-0606.html -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Changed 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. 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. -
Modified Analysis by [email protected]
Nov. 14, 2022
Action Type Old Value New Value Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H -
CVE Modified by [email protected]
Nov. 11, 2022
Action Type Old Value New Value Changed 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. Splunk peer communications configured properly with valid certificates were not vulnerable. However, connections from misconfigured nodes without valid certificates did not fail 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. 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. Removed CVSS V3.1 Splunk Inc. AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Added CVSS V3.1 Splunk Inc. AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Removed CVSS V3.1 Reason AC-No Race Condition Removed CVSS V3.1 Reason A-No limiting factors -
Initial Analysis by [email protected]
Jun. 24, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValidation#Configure_TLS_host_name_validation_for_the_Splunk_CLI No Types Assigned https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValidation#Configure_TLS_host_name_validation_for_the_Splunk_CLI Mitigation, Vendor Advisory Changed Reference Type https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/Updates No Types Assigned https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/Updates Release Notes, Vendor Advisory Changed Reference Type https://www.splunk.com/en_us/product-security/announcements/svd-2022-0606.html No Types Assigned https://www.splunk.com/en_us/product-security/announcements/svd-2022-0606.html Vendor Advisory Added CWE NIST CWE-295 Added CPE Configuration OR *cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* versions up to (excluding) 9.0 *cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:* versions up to (excluding) 9.0
Vulnerability Scoring Details
Base CVSS Score: 8.1
Base CVSS Score: 6.8
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.18 }} -0.07%
score
0.40761
percentile