Headline
CVE-2022-0017: CVE-2022-0017 GlobalProtect App: Improper Link Resolution Vulnerability Leads to Local Privilege Escalation
An improper link resolution before file access (‘link following’) vulnerability exists in the Palo Alto Networks GlobalProtect app on Windows that enables a local attacker to disrupt system processes and potentially execute arbitrary code with SYSTEM privileges under certain circumstances. This issue impacts: GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.10 on Windows. GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.5 on Windows. This issue does not affect GlobalProtect app on other platforms.
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Palo Alto Networks Security Advisories / CVE-2022-0017
Attack Vector LOCAL
Attack Complexity HIGH
Privileges Required LOW
User Interaction NONE
Scope UNCHANGED
Confidentiality Impact HIGH
Integrity Impact HIGH
Availability Impact HIGH
NVD JSON
Published 2022-02-09
Updated 2022-02-09
Reference GPC-10982
Discovered externally
Description
An improper link resolution before file access (‘link following’) vulnerability exists in the Palo Alto Networks GlobalProtect app on Windows that enables a local attacker to disrupt system processes and potentially execute arbitrary code with SYSTEM privileges under certain circumstances.
This issue impacts:
GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.10 on Windows.
GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.5 on Windows.
This issue does not affect GlobalProtect app on other platforms.
Product Status
Versions
Affected
Unaffected
GlobalProtect App 5.3
None
5.3.*
GlobalProtect App 5.2
< 5.2.5 on Windows
>= 5.2.5 on Windows
GlobalProtect App 5.1
< 5.1.10 on Windows
>= 5.1.10 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)
Exploitation Status
Palo Alto Networks is not aware of any malicious exploitation of this issue.
Weakness Type
CWE-59 Improper Link Resolution Before File Access (‘Link Following’)
Solution
This issue is fixed in GlobalProtect app 5.1.10 on Windows, GlobalProtect app 5.2.5 on Windows and all later GlobalProtect app versions.
Workarounds and Mitigations
There are no known workarounds for this issue.
Acknowledgments
Palo Alto Networks thanks Christophe Schleypen of NATO Cyber Security Centre Pentesting for discovering and reporting this issue.
Timeline
2022-02-09 Initial publication
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