A local privilege escalation (PE) vulnerability in the Palo Alto Networks GlobalProtect app on Windows enables a local user to execute programs with elevated privileges.

A stack-based buffer overflow vulnerability exists in the Palo Alto Networks GlobalProtect app that enables a man-in-the-middle attacker to disrupt system processes and potentially execute arbitrary code with SYSTEM privileges. This issue impacts: GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.9 on Windows; GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.8 on Windows; GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.8 on the Universal Windows Platform; GlobalProtect app 5.3 versions earlier than GlobalProtect app 5.3.1 on Linux.

When the pre-logon feature is enabled, a missing certification validation in Palo Alto Networks GlobalProtect app can disclose the pre-logon authentication cookie to a man-in-the-middle attacker on the same local area network segment with the ability to manipulate ARP or to conduct ARP spoofing attacks. This allows the attacker to access the GlobalProtect Server as allowed by configured Security rules for the 'pre-login' user. This access may be limited compared to the network access of regular users. This issue affects: GlobalProtect app 5.0 versions earlier than GlobalProtect app 5.0.10 when the prelogon feature is enabled; GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.4 when the prelogon feature is enabled.

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.

Under certain circumstances a user's password may be logged in cleartext in the PanGPS.log diagnostic file when logs are collected for troubleshooting on GlobalProtect app (also known as GlobalProtect Agent) for MacOS and Windows. For this issue to occur all of these conditions must be true: (1) 'Save User Credential' option should be set to 'Yes' in the GlobalProtect Portal's Agent configuration, (2) the GlobalProtect user manually selects a gateway, (3) and the logging level is set to 'Dump' while collecting troubleshooting logs. This issue does not affect GlobalProtect app on other platforms (for example iOS/Android/Linux). This issue affects GlobalProtect app 5.0 versions earlier than 5.0.9, GlobalProtect app 5.1 versions earlier than 5.1.2 on Windows or MacOS. Since becoming aware of the issue, Palo Alto Networks has safely deleted all the known GlobalProtectLogs zip files sent by customers with the credentials. We now filter and remove these credentials from all files sent to Customer Support. The GlobalProtectLogs zip files uploaded to Palo Alto Networks systems were only accessible by authorized personnel with valid Palo Alto Networks credentials. We do not have any evidence of malicious access or use of these credentials.

An unquoted search path vulnerability in the Windows release of Global Protect Agent allows an authenticated local user with file creation privileges on the root of the OS disk (C:\) or to Program Files directory to gain system privileges. This issue affects Palo Alto Networks GlobalProtect Agent 5.0 versions before 5.0.5; 4.1 versions before 4.1.13 on Windows;

An information exposure vulnerability in the logging component of Palo Alto Networks Global Protect Agent allows a local authenticated user to read VPN cookie information when the troubleshooting logging level is set to "Dump". This issue affects Palo Alto Networks Global Protect Agent 5.0 versions prior to 5.0.9; 5.1 versions prior to 5.1.1.

A Local Privilege Escalation vulnerability exists in the GlobalProtect Agent for Windows 5.0.3 and earlier, and GlobalProtect Agent for Windows 4.1.12 and earlier, in which the auto-update feature can allow for modification of a GlobalProtect Agent MSI installer package on disk before installation.