SB2021111107 - Denial of service in PAN-OS GlobalProtect Portal and Gateway interfaces



SB2021111107 - Denial of service in PAN-OS GlobalProtect Portal and Gateway interfaces

Published: November 11, 2021

Security Bulletin ID SB2021111107
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Handling of Exceptional Conditions (CVE-ID: CVE-2021-3063)

CWE-ID: CWE-755 - Improper Handling of Exceptional Conditions

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform denial of service (DoS) attack.

The vulnerability exists due to improper handling of exceptional conditions in GlobalProtect portal and gateway interfaces. A remote non-authenticated attacker can send specifically crafted traffic to a GlobalProtect interface that causes the service to stop responding.

Successful exploitation of the vulnerability may result in a denial of service (DoS) attack.


Remediation

Install update from vendor's website.