URL filtration bypass in Palo Alto PAN-OS
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-0011 |
| CWE-ID | CWE-185 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Palo Alto PAN-OS Operating systems & Components / Operating system |
| Vendor | Palo Alto Networks, Inc. |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Incorrect Regular Expression
EUVDB-ID: #VU60481
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-0011
CWE-ID:
CWE-185 - Incorrect Regular Expression
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass URL filtration rules.
The vulnerability exists due to an error when processing forward slash (/), asterisk (*) and caret (^) at the end of the hostname inside filtration rules added to the custom URL category list or to an external dynamic list (EDL) in a URL Filtering profile. As a result, unexpected domains can be blocked or allowed, resulting in a potential security issue.
Install updates from vendor's website.
Vulnerable software versionsPalo Alto PAN-OS: 8.1 - 10.1.2
External linkshttp://security.paloaltonetworks.com/CVE-2022-0011
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
