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CVE-2021-3038— GlobalProtect App: Windows VPN kernel driver denial of service (DoS)

Quick assessment

Affected
Palo Alto Networks GlobalProtect App
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 GlobalProtect是美国Palo Alto Networks公司的一套网络防护软件。该软件可提供防火墙监控及威胁预防等功能。 Palo Alto Networks GlobalProtect 存在输入验证错误漏洞，该漏洞允许本地用户执行拒绝服务(DoS)攻击。

CVSS 5.5 · Medium EPSS 0.22% · P11

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-3038

Vulnerability Information
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Vulnerability Title
GlobalProtect App: Windows VPN kernel driver denial of service (DoS)
Source: CVE Program / CVE List V5
Vulnerability Description
A denial-of-service (DoS) vulnerability in Palo Alto Networks GlobalProtect app on Windows systems allows a limited Windows user to send specifically-crafted input to the GlobalProtect app that results in a Windows blue screen of death (BSOD) error. This issue impacts: GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.8; GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Palo Alto Networks GlobalProtect 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Palo Alto Networks GlobalProtect是美国Palo Alto Networks公司的一套网络防护软件。该软件可提供防火墙监控及威胁预防等功能。 Palo Alto Networks GlobalProtect 存在输入验证错误漏洞，该漏洞允许本地用户执行拒绝服务(DoS)攻击。
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 GlobalProtect App 5.1 ~ 5.1.8 -

II. Public POCs for CVE-2021-3038

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III. Intelligence Information for CVE-2021-3038

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Vendor Advisories for CVE-2021-3038 (1)

Same Patch Batch · Palo Alto Networks · 2021-04-20 · 4 CVEs total

CVE-2021-3035 6.7 MEDIUM Bridgecrew Checkov: Unsafe deserialization of Terraform files allows code execution
CVE-2021-3036 4.4 MEDIUM PAN-OS: Administrator secrets are logged in web server logs when using the PAN-OS XML API
CVE-2021-3037 2.3 LOW PAN-OS: Secrets for scheduled configuration exports are logged in system logs

IV. Related Vulnerabilities

Same product: GlobalProtect App
Same vendor: Palo Alto Networks
Same weakness: CWE-20

V. Comments for CVE-2021-3038

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