CVE-2021-42743— Local privilege escalation via a default path in Splunk Enterprise Windows
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I. Basic Information for CVE-2021-42743
Vulnerability Information
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Vulnerability Title
Local privilege escalation via a default path in Splunk Enterprise Windows
Source: NVD (National Vulnerability Database)
Vulnerability Description
A misconfiguration in the node default path allows for local privilege escalation from a lower privileged user to the Splunk user in Splunk Enterprise versions before 8.1.1 on Windows.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对搜索路径元素未加控制
Source: NVD (National Vulnerability Database)
Vulnerability Title
Splunk Enterprise 代码问题漏洞
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。 基于Windows的Splunk Enterprise 8.1.1 之前版本存在安全漏洞，该漏洞源于默认路径的错误配置，攻击者利用该漏洞可将本地权限从权限较低的用户升级到Splunk用户。
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 | 8.1 version(s) before 8.1.1 | - |
II. Public POCs for CVE-2021-42743
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Same Patch Batch · Splunk · 2022-05-06 · 7 CVEs total
| CVE-2022-26889 | 8.8 HIGH | Path Traversal in search parameter results in external content injection |
| CVE-2022-27183 | 8.8 HIGH | Reflected XSS in a query parameter of the Monitoring Console |
| CVE-2021-26253 | 8.1 HIGH | Bypass of Splunk Enterprise's implementation of DUO MFA |
| CVE-2021-31559 | 7.5 HIGH | S2S TcpToken authentication bypass |
| CVE-2021-33845 | 5.3 MEDIUM | Username enumeration through lockout message in REST API |
| CVE-2022-26070 | 4.3 MEDIUM | Error message discloses internal path |
IV. Related Vulnerabilities
Same product: Splunk Enterprise
- CVE-2026-20203
Improper Access Control in Data Model Acceleration in Splunk - CVE-2026-20204
Improper Handling and Insufficient Isolation of Specific Tem - CVE-2026-20202
Improper Input Validation during User Account Creation in Sp - CVE-2026-20163
Remote Command Execution (RCE) through the '/splunkd/__uploa - CVE-2026-20162
Stored Cross-Site Scripting (XSS) through Path Traversal in
Same vendor: Splunk
- CVE-2026-20205
Sensitive Information Disclosure in ''_internal'' index in S - CVE-2026-20203
Improper Access Control in Data Model Acceleration in Splunk - CVE-2026-20204
Improper Handling and Insufficient Isolation of Specific Tem - CVE-2026-20202
Improper Input Validation during User Account Creation in Sp - CVE-2026-20163
Remote Command Execution (RCE) through the '/splunkd/__uploa
Same weakness: CWE-427
- CVE-2026-44406
DLL Hijacking Vulnerability in ZTE Cloud PC Client uSmartvie - CVE-2026-40004
openssl.cnf Privilege Escalation Vulnerability in ZTE Cloud - CVE-2026-21661
AC2000 Uncontrolled Search Path Element - CVE-2026-6788
Uncontrolled search path in PluginLauncher allows SYSTEM cod - CVE-2026-25852
Acronis DeviceLock DLP 代码问题漏洞
V. Comments for CVE-2021-42743
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