A memory corruption vulnerability in Palo Alto Networks PAN-OS software allows an unauthenticated attacker to crash PAN-OS due to a crafted packet through the data plane, resulting in a denial of service (DoS) condition. Repeated attempts to trigger this condition will result in PAN-OS entering maintenance mode.

A Denial of Service (DoS) vulnerability in the GlobalProtect feature of Palo Alto Networks PAN-OS software enables an unauthenticated attacker to render the service unavailable by sending a large number of specially crafted packets over a period of time. This issue affects both the GlobalProtect portal and the GlobalProtect gateway.

This issue does not apply to Cloud NGFWs or Prisma Access software.

An authenticated file deletion vulnerability in the Palo Alto Networks PAN-OS® software enables an authenticated attacker with network access to the management web interface to delete certain files as the “nobody” user; this includes limited logs and configuration files but does not include system files.

The attacker must have network access to the management web interface to exploit this issue. You greatly reduce the risk of this issue by restricting access to the management web interface to only trusted internal IP addresses according to our recommended critical deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 .

This issue affects Cloud NGFW. However, this issue does not affect Prisma® Access software.

An improper certificate validation vulnerability in Palo Alto Networks PAN-OS software enables an authorized user with a specially crafted client certificate to connect to an impacted GlobalProtect portal or GlobalProtect gateway as a different legitimate user. This attack is possible only if you "Allow Authentication with User Credentials OR Client Certificate."

An improper input neutralization vulnerability in the management web interface of the Palo Alto Networks PAN-OS® software enables a malicious authenticated read-write administrator to impersonate another legitimate authenticated PAN-OS administrator.

The attacker must have network access to the management web interface to exploit this issue. You greatly reduce the risk of this issue by restricting access to the management web interface to only trusted internal IP addresses according to our recommended critical deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 .

Using the AES-128-CCM algorithm for IPSec on certain Palo Alto Networks PAN-OS® firewalls (PA-7500, PA-5400, PA-5400f, PA-3400, PA-1400, and PA-400 Series) leads to unencrypted data transfer to devices that are connected to the PAN-OS firewall through IPSec.

This issue does not affect Cloud NGFWs, Prisma® Access instances, or PAN-OS VM-Series firewalls.

NOTE: The AES-128-CCM encryption algorithm is not recommended for use.

The Palo Alto Networks Product Security Assurance team has evaluated the applicability of CVEs related to the Marvin attack on PAN-OS. While we did not determine that any of these CVEs have significant impact on our PAN-OS software, some were fixed anyway out of an abundance of caution. You can also review more details about the Marvin attack (https://people.redhat.com/~hkario/marvin/) if helpful.

A cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS software enables an authenticated read-write Panorama administrator to push a specially crafted configuration to a PAN-OS node. This enables impersonation of a legitimate PAN-OS administrator who can perform restricted actions on the PAN-OS node after the execution of JavaScript in the legitimate PAN-OS administrator's browser.

An information exposure vulnerability in Palo Alto Networks PAN-OS software enables a local system administrator to unintentionally disclose secrets, passwords, and tokens of external systems. A read-only administrator who has access to the config log, can read secrets, passwords, and tokens to external systems.

A vulnerability in the Palo Alto Networks PAN-OS® software enables unlicensed administrators to view clear-text data captured using the packet capture feature https://docs.paloaltonetworks.com/pan-os/11-0/pan-os-admin/monitoring/take-packet-captures/take-a-custom-packet-capture in decrypted HTTP/2 data streams traversing network interfaces on the firewall. HTTP/1.1 data streams are not impacted.

In normal conditions, decrypted packet captures are available to firewall administrators after they obtain and install a free Decryption Port Mirror license. The license requirement ensures that this feature can only be used after approved personnel purposefully activate the license. For more information, review how to configure decryption port mirroring https://docs.paloaltonetworks.com/network-security/decryption/administration/monitoring-decryption/configure-decryption-port-mirroring .

The administrator must obtain network access to the management interface (web, SSH, console, or telnet) and successfully authenticate to exploit this issue. Risk of this issue can be greatly reduced by restricting access to the management interface to only trusted administrators and from only internal IP addresses according to our recommended critical deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 .

Customer firewall administrators do not have access to the packet capture feature in Cloud NGFW. This feature is available only to authorized Palo Alto Networks personnel permitted to perform troubleshooting.

Prisma® Access is not impacted by this vulnerability.

When configured using SAML, a session fixation vulnerability in the GlobalProtect™ login enables an attacker to impersonate a legitimate authorized user and perform actions as that GlobalProtect user. This requires the legitimate user to first click on a malicious link provided by the attacker.

The SAML login for the PAN-OS® management interface is not affected. Additionally, this issue does not affect Cloud NGFW and all Prisma® Access instances are proactively patched.

A denial-of-service (DoS) vulnerability in the Simple Certificate Enrollment Protocol (SCEP) authentication feature of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker to initiate system reboots using a maliciously crafted packet. Repeated attempts to initiate a reboot causes the firewall to enter maintenance mode.

Cloud NGFW is not affected by this vulnerability. Prisma® Access software is proactively patched and protected from this issue.

A Denial of Service (DoS) vulnerability in Palo Alto Networks PAN-OS software causes the firewall to unexpectedly reboot when processing a specially crafted LLDP frame sent by an unauthenticated adjacent attacker. Repeated attempts to initiate this condition causes the firewall to enter maintenance mode.

This issue does not apply to Cloud NGFWs or Prisma Access software.

A vulnerability in the Palo Alto Networks PAN-OS software enables an authenticated admin on the PAN-OS CLI to read arbitrary files.

The attacker must have network access to the management interface (web, SSH, console, or telnet) and successfully authenticate to exploit this issue. You can greatly reduce the risk of this issue by restricting access to the management interface to only trusted users and internal IP addresses according to our recommended critical deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 .

This issue does not affect Cloud NGFW or Prisma Access.

An unauthenticated file deletion vulnerability in the Palo Alto Networks PAN-OS management web interface enables an unauthenticated attacker with network access to the management web interface to delete certain files as the “nobody” user; this includes limited logs and configuration files but does not include system files.

The attacker must have network access to the management web interface to exploit this issue. You can greatly reduce the risk of this issue by restricting access to the management web interface to only trusted internal IP addresses according to our recommended critical deployment guidelines (https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431).

This issue does not affect Cloud NGFW or Prisma Access software.

Palo Alto Networks GlobalProtect Clientless VPN is intended to provide secure remote access to trusted internal applications. It is not meant to provide access to the Internet, intranet or multiple websites.

When the Clientless VPN is misconfigured to allow access to the Internet or any internal website, it allows malicious scripts on one site to obtain sensitive information or modify content of any application accessible through the VPN including Clientless VPN itself.

For further details about the risks of Clientless VPNs please refer to https://www.kb.cert.org/vuls/id/261869

A vulnerability in the GlobalProtect Gateway in Palo Alto Networks PAN-OS software enables an authenticated attacker to impersonate another user and send network packets to internal assets. However, this vulnerability does not allow the attacker to receive response packets from those internal assets.

A blind XML External Entities (XXE) injection vulnerability in the Palo Alto Networks PAN-OS software enables an authenticated attacker to exfiltrate arbitrary files from firewalls to an attacker controlled server. This attack requires network access to the firewall management interface.

A server-side request forgery in PAN-OS software enables an authenticated attacker to use the administrative web interface as a proxy, which enables the attacker to view internal network resources not otherwise accessible.

A command injection vulnerability in Palo Alto Networks PAN-OS software enables an authenticated administrator to bypass system restrictions in the management plane and delete files on the firewall.

A null pointer dereference vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to stop a core system service on the firewall by sending a crafted packet through the data plane that causes a denial of service (DoS) condition. Repeated attempts to trigger this condition result in the firewall entering maintenance mode.

A null pointer dereference vulnerability in the GlobalProtect gateway in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to stop the GlobalProtect service on the firewall by sending a specially crafted packet that causes a denial of service (DoS) condition. Repeated attempts to trigger this condition result in the firewall entering maintenance mode.

A vulnerability in Palo Alto Networks PAN-OS software enables a remote attacker to reboot PAN-OS firewalls when receiving Windows New Technology LAN Manager (NTLM) packets from Windows servers. Repeated attacks eventually cause the firewall to enter maintenance mode, which requires manual intervention to bring the firewall back online.