PT-2021-18778 · Palo Alto Networks · Pan-Os

Nicholas Newsom · Published 2021-07-12 · Updated 2021-11-15 · CVE-2021-3063

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions PAN-OS versions prior to 8.1.21 PAN-OS versions prior to 9.0.14-h4 PAN-OS versions prior to 9.1.11-h3 PAN-OS versions prior to 10.0.8-h4 PAN-OS versions prior to 10.1.3

Description An improper handling of exceptional conditions issue exists in Palo Alto Networks GlobalProtect portal and gateway interfaces, allowing an unauthenticated network-based attacker to send specifically crafted traffic to a GlobalProtect interface, causing the service to stop responding. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. Prisma Access customers are not impacted by this issue.

Recommendations For PAN-OS versions prior to 8.1.21, update to version 8.1.21 or later. For PAN-OS versions prior to 9.0.14-h4, update to version 9.0.14-h4 or later. For PAN-OS versions prior to 9.1.11-h3, update to version 9.1.11-h3 or later. For PAN-OS versions prior to 10.0.8-h4, update to version 10.0.8-h4 or later. For PAN-OS versions prior to 10.1.3, update to version 10.1.3 or later.

Fix

DoS

Improper Handling of Exceptional Conditions

Weakness Enumeration

CWE-459

CWE-755

Related Identifiers

BDU:2021-03687

CVE-2021-3063

Affected Products

Pan-Os

References · 12

• https://osv.dev/vulnerability/CVE-2021-3063 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-03687 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-30639 · Security Note
• https://security.paloaltonetworks.com/CVE-2021-3063 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-3063 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-30639 · Vendor Advisory
• https://t.me/cibsecurity/32198 · Telegram Post
• https://lists.apache.org/thread.html/rd84fae1f474597bdf358f5bdc0a5c453c507bd527b83e8be6b5ea3f4%40%3Cannounce.tomcat.apache.org%3E · Note
• https://lists.apache.org/thread.html/r79a7c019712b39aedf7cf4da9276d80610f04441b2a4f6506cb2daaf@%3Cdev.tomcat.apache.org%3E · Note
• https://access.redhat.com/security/cve/cve-2021-3063 · Note
• https://altsp.su/obnovleniya-bezopasnosti · Note
• https://lists.apache.org/thread.html/r79a7c019712b39aedf7cf4da9276d80610f04441b2a4f6506cb2daaf@%3Cusers.tomcat.apache.org%3E · Note