Vulnerability Name:

CVE-2022-0011 (CCN-219324)

Assigned:2021-12-28
Published:2022-02-09
Updated:2022-02-17
Summary: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.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
CVSS v2 Severity:4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:C/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Complete
Availibility (A): None
Vulnerability Type:CWE-436
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2022-0011

Source: XF
Type: UNKNOWN
paloaltonetworks-cve20220011-sec-bypass(219324)

Source: CCN
Type: Palo Alto Networks Security Advisories
CVE-2022-0011 PAN-OS: URL Category Exceptions Match More URLs Than Intended in URL Filtering

Source: CONFIRM
Type: Mitigation, Vendor Advisory
N/A

Vulnerable Configuration:Configuration 1:
  • cpe:/o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:* (Version >= 8.1.0 and < 8.1.21)
  • OR cpe:/o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:* (Version >= 9.0.0 and <= 9.0.15)
  • OR cpe:/o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:* (Version >= 9.1.0 and < 9.1.12)
  • OR cpe:/o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:* (Version >= 10.0.0 and < 10.0.8)
  • OR cpe:/o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:* (Version >= 10.1.0 and < 10.1.3)

    • Configuration 2:
  • cpe:/a:paloaltonetworks:prisma_access:2.1:*:*:*:innovation:*:*:*
  • OR cpe:/a:paloaltonetworks:prisma_access:2.1:*:*:*:preferred:*:*:*
  • OR cpe:/a:paloaltonetworks:prisma_access:2.2:*:*:*:preferred:*:*:*

    • Configuration CCN 1:
  • cpe:/o:paloaltonetworks:pan-os:9.0.0:*:*:*:*:*:*:*
  • OR cpe:/o:paloaltonetworks:pan-os:9.1.0:*:*:*:*:*:*:*
  • OR cpe:/o:paloaltonetworks:pan-os:10.1.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    paloaltonetworks pan-os *
    paloaltonetworks pan-os *
    paloaltonetworks pan-os *
    paloaltonetworks pan-os *
    paloaltonetworks pan-os *
    paloaltonetworks prisma access 2.1
    paloaltonetworks prisma access 2.1
    paloaltonetworks prisma access 2.2
    paloaltonetworks pan-os 9.0.0
    paloaltonetworks pan-os 9.1.0
    paloaltonetworks pan-os 10.1.0