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CVE-2022-32156— Splunk Enterprise and Universal Forwarder CLI connections lacked TLS cert validation

Quick assessment

Affected
Splunk Splunk Enterprise
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Splunk是美国Splunk公司的一套数据收集分析软件。该软件主要用于收集、索引和分析及其所产生的数据，包括所有IT系统和基础结构（物理、虚拟机和云）生成的数据。 Splunk Enterprise 9.0之前版本存在信任管理问题漏洞，该漏洞源于Splunk Enterprise 和 Universal Forwarder 在命令行界面连接缺少 TLS 证书验证。

CVSS 8.1 · High EPSS 0.80% · P55

Possible ATT&CK Techniques 1 AI

T1557.002 · ARP Cache Poisoning
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I. Basic Information for CVE-2022-32156

Vulnerability Information
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Vulnerability Title
Splunk Enterprise and Universal Forwarder CLI connections lacked TLS cert validation
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Splunk 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Splunk是美国Splunk公司的一套数据收集分析软件。该软件主要用于收集、索引和分析及其所产生的数据，包括所有IT系统和基础结构（物理、虚拟机和云）生成的数据。 Splunk Enterprise 9.0之前版本存在信任管理问题漏洞，该漏洞源于Splunk Enterprise 和 Universal Forwarder 在命令行界面连接缺少 TLS 证书验证。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Splunk Splunk Enterprise 0 ~ 9.0.0 -
Splunk Universal Forwarder 0 ~ 9.0.0 -

II. Public POCs for CVE-2022-32156

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III. Intelligence Information for CVE-2022-32156

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Other References for CVE-2022-32156 (2)

IV. Related Vulnerabilities

Same product: Splunk Enterprise
Same vendor: Splunk
Same weakness: CWE-295

V. Comments for CVE-2022-32156

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