Palo Alto Networks Security Advisories / CVE-2020-2032

CVE-2020-2032 GlobalProtect App: File race condition vulnerability leads to local privilege escalation during upgrade

047910
Severity 7 · HIGH
Attack Vector LOCAL
Attack Complexity HIGH
Privileges Required LOW
User Interaction NONE
Scope UNCHANGED
Confidentiality Impact HIGH
Integrity Impact HIGH
Availability Impact HIGH

Description

A race condition vulnerability Palo Alto Networks GlobalProtect app on Windows allows a local limited Windows user to execute programs with SYSTEM privileges.

This issue can be exploited only while performing a GlobalProtect app upgrade.

This issue affects:

GlobalProtect app 5.0 versions earlier than GlobalProtect app 5.0.10 on Windows;

GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.4 on Windows.

Product Status

GlobalProtect App

VersionsAffectedUnaffected
5.1< 5.1.4 on Windows>= 5.1.4 on Windows
5.0< 5.0.10 on Windows>= 5.0.10 on Windows

Severity: HIGH

CVSSv3.1 Base Score: 7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)

Weakness Type

CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

Solution

This issue is fixed in GlobalProtect app 5.0.10, GlobalProtect app 5.1.4, and all later GlobalProtect app versions.

Workarounds and Mitigations

Acknowledgments

Palo Alto Networks thanks Rich Mirch of TeamARES from Critical Start Inc for discovering and reporting this issue.

Timeline

Initial publication
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