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CVE-2021-3042— Cortex XDR Agent: Improper Control of User-Controlled File Leads to Local Privilege Escalation

Quick assessment

Affected
Palo Alto Networks Cortex XDR Agent
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.

Palo Alto Networks Cortex XDR Agent是马来西亚Palo Alto Networks公司的一个用于检测客户端设备安全性的客户端软件。 Palo Alto Networks Cortex XDR Agent 存在代码问题漏洞，该漏洞源于用户控制文件控制不当。经过身份验证的本地 Windows 用户利用该漏洞能够以系统权限执行程序。

CVSS 7.8 · High EPSS 0.25% · P15
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I. Basic Information for CVE-2021-3042

Vulnerability Information
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Vulnerability Title
Cortex XDR Agent: Improper Control of User-Controlled File Leads to Local Privilege Escalation
Source: CVE Program / CVE List V5
Vulnerability Description
A local privilege escalation (PE) vulnerability exists in the Palo Alto Networks Cortex XDR agent on Windows platforms that enables an authenticated local Windows user to execute programs with SYSTEM privileges. Exploiting this vulnerability requires the user to have file creation privilege in the Windows root directory (such as C:\). This issue impacts: All versions of Cortex XDR agent 6.1 without content update 181 or a later version; All versions of Cortex XDR agent 7.2 without content update 181 or a later version; All versions of Cortex XDR agent 7.3 without content update 181 or a later version. Cortex XDR agent 5.0 versions are not impacted by this issue. Content updates are required to resolve this issue and are automatically applied for the agent.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对搜索路径元素未加控制
Source: CVE Program / CVE List V5
Vulnerability Title
Palo Alto Networks Cortex XDR Agent 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Palo Alto Networks Cortex XDR Agent是马来西亚Palo Alto Networks公司的一个用于检测客户端设备安全性的客户端软件。 Palo Alto Networks Cortex XDR Agent 存在代码问题漏洞，该漏洞源于用户控制文件控制不当。经过身份验证的本地 Windows 用户利用该漏洞能够以系统权限执行程序。
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
Palo Alto Networks Cortex XDR Agent 5.0 all -
Palo Alto Networks Cortex XDR Agent 6.1.* without content update 181 or later -
Palo Alto Networks Cortex XDR Agent 7.2.* with content update 181 or later -

II. Public POCs for CVE-2021-3042

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III. Intelligence Information for CVE-2021-3042

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Vendor Advisories for CVE-2021-3042 (1)

IV. Related Vulnerabilities

Same product: Cortex XDR Agent
Same vendor: Palo Alto Networks
Same weakness: CWE-427

V. Comments for CVE-2021-3042

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