CVE-2019-17435 Local Privilege Escalation in GlobalProtect App for Windows
Attack Vector
LOCAL
Scope
UNCHANGED
Attack Complexity
LOW
Confidentiality Impact
NONE
Privileges Required
LOW
Integrity Impact
HIGH
User Interaction
NONE
Availability Impact
NONE
Description
A Local Privilege Escalation vulnerability exists in the GlobalProtect App for Windows auto-update feature that can allow for modification of a GlobalProtect App MSI installer package on disk before installation. (Ref # GPC-8977, CVE-2019-17435)
Successful exploitation of this issue may allow a low-privileged local user to escalate their privileges to the System user.
This issue affects GlobalProtect App 5.0.3 and earlier for Windows and GlobalProtect App 4.1.12 and earlier for Windows.
Product Status
| Versions | Affected | Unaffected |
|---|---|---|
| GlobalProtect App 5.0 | <= 5.0.3 | >= 5.0.4 |
| GlobalProtect App 4.1 | <= 4.1.12 | >= 4.1.13 |
Severity: MEDIUM
CVSSv3.1 Base Score: 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)
Weakness Type
CWE-269 Improper Privilege Management
Solution
GlobalProtect App 4.1.13 and later for Windows and GlobalProtect App 5.0.4 and later for Windows.
Workarounds and Mitigations
N/A
Acknowledgments
Palo Alto Networks would like to thank Hanno Heinrichs of CrowdStrike Intelligence for reporting this issue.