Palo Alto Networks Security Advisories / CVE-2019-17435

CVE-2019-17435 Local Privilege Escalation in GlobalProtect App for Windows

047910
Severity 5.5 · MEDIUM
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

VersionsAffectedUnaffected
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.
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