CVE-2020-2032 GlobalProtect App: File race condition vulnerability leads to local privilege escalation during upgrade
Attack Vector
LOCAL
Scope
UNCHANGED
Attack Complexity
HIGH
Confidentiality Impact
HIGH
Privileges Required
LOW
Integrity Impact
HIGH
User Interaction
NONE
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
| Versions | Affected | Unaffected |
|---|---|---|
| GlobalProtect App 5.1 | < 5.1.4 on Windows | >= 5.1.4 on Windows |
| GlobalProtect App 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.
Acknowledgments
Palo Alto Networks thanks Rich Mirch of TeamARES from Critical Start Inc for discovering and reporting this issue.
Timeline
Initial publication