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CVE-2020-2033— GlobalProtect App: Missing certificate validation vulnerability can disclose pre-logon authentication cookie

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 5.0.10之前版本（5.0）和5.1.4之前版本（5.1）中存在信任管理问题漏洞。该漏洞源于网络系统或产品中缺乏有效的信任管理机制。攻击者可利用默认密码或者硬编码密码、硬编码证书等攻击受影响组件。

CVSS 5.3 · Medium EPSS 0.87% · P57
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I. Basic Information for CVE-2020-2033

Vulnerability Information
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Vulnerability Title
GlobalProtect App: Missing certificate validation vulnerability can disclose pre-logon authentication cookie
Source: CVE Program / CVE List V5
Vulnerability Description
When the pre-logon feature is enabled, a missing certification validation in Palo Alto Networks GlobalProtect app can disclose the pre-logon authentication cookie to a man-in-the-middle attacker on the same local area network segment with the ability to manipulate ARP or to conduct ARP spoofing attacks. This allows the attacker to access the GlobalProtect Server as allowed by configured Security rules for the 'pre-login' user. This access may be limited compared to the network access of regular users. This issue affects: GlobalProtect app 5.0 versions earlier than GlobalProtect app 5.0.10 when the prelogon feature is enabled; GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.4 when the prelogon feature is enabled.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Palo Alto Networks GlobalProtect 信任管理问题漏洞
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 5.0.10之前版本（5.0）和5.1.4之前版本（5.1）中存在信任管理问题漏洞。该漏洞源于网络系统或产品中缺乏有效的信任管理机制。攻击者可利用默认密码或者硬编码密码、硬编码证书等攻击受影响组件。
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 ~ 5.1.4 -

II. Public POCs for CVE-2020-2033

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III. Intelligence Information for CVE-2020-2033

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Vendor Advisories for CVE-2020-2033 (1)

Same Patch Batch · Palo Alto Networks · 2020-06-10 · 5 CVEs total

CVE-2020-2027 7.2 HIGH PAN-OS: Buffer overflow in authd authentication response
CVE-2020-2028 7.2 HIGH PAN-OS: OS command injection vulnerability in FIPS-CC mode certificate verification
CVE-2020-2029 7.2 HIGH PAN-OS: OS command injection vulnerability in management interface certificate generator
CVE-2020-2032 7.0 HIGH GlobalProtect App: File race condition vulnerability leads to local privilege escalation d

IV. Related Vulnerabilities

Same product: GlobalProtect App
Same vendor: Palo Alto Networks
Same weakness: CWE-290

V. Comments for CVE-2020-2033

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