CVE-2022-0011 PAN-OS: URL Category Exceptions Match More URLs Than Intended in URL Filtering
Improper URL matching in PAN-OS allows attackers to bypass URL filtering policies if administrators use specific wildcard patterns in exception lists.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-0011?
CVE-2022-0011 is a medium-severity vulnerability in Paloaltonetworks Pan-Os, published on 10 Feb 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
PAN-OS software provides options to exclude specific websites from URL category enforcement and those websites are blocked or allowed (depending on your rules) regardless of their associated URL category. This is done by creating a custom URL category list or by using an external dynamic list (EDL) in a URL Filtering profile. When the entries in these lists have a hostname pattern that does not end with a forward slash (/) or a hostname pattern that ends with an asterisk (*), any URL that starts with the specified pattern is considered a match. Entries with a caret (^) at the end of a hostname pattern match any top level domain. This may inadvertently allow or block more URLs than intended and allowing more URLs than intended represents a security risk. For example: example.com will match example.com.website.test example.com.* will match example.com.website.test example.com.^ will match example.com.test You should take special care when using such entries in policy rules that allow traffic. Where possible, use the exact list of hostname names ending with a forward slash (/) instead of using wildcards. PAN-OS 10.1 versions earlier than PAN-OS 10.1.3; PAN-OS 10.0 versions earlier than PAN-OS 10.0.8; PAN-OS 9.1 versions earlier than PAN-OS 9.1.12; all PAN-OS 9.0 versions; PAN-OS 8.1 versions earlier than PAN-OS 8.1.21, and Prisma Access 2.2 and 2.1 versions do not allow customers to change this behavior without changing the URL category list or EDL.
Weakness: CWE-436
Which versions are affected by CVE-2022-0011?
It affects 2 products.
Products include Paloaltonetworks Pan-Os, Paloaltonetworks Prisma Access.
How do I fix CVE-2022-0011?
No fix has been published for CVE-2022-0011 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-0011 being exploited?
There is no known exploitation of CVE-2022-0011 in the wild and no public exploit code.
Other vulnerabilities in Paloaltonetworks Pan-Os
- CVE-2024-3400 Palo Alto Networks PAN-OS Command Injection
- CVE-2020-2021 Palo Alto Networks PAN-OS Authentication Bypass
- CVE-2017-15944 Palo Alto Networks PAN-OS Remote Code Execution
- CVE-2026-0300 Palo Alto Networks PAN-OS Out-of-bounds Write
- CVE-2024-0012 Palo Alto Networks PAN-OS Management Interface Authentication Bypass
Sources
Also known as GHSA-pc4w-x9p8-64j7.