Remote denial of service in Palo Alto Networks PAN-OS

1) Improper Check for Unusual or Exceptional Conditions

EUVDB-ID: #VU101970

Risk: High

CVSSv3.1: 8.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2024-3393

CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions

Exploit availability: Yes

Description

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

The vulnerability exists due to improper error handling in the DNS Security feature. A remote attacker can send specially crafted DNS packets through the data plane of the firewall and perform a denial of service (DoS) attack.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Palo Alto PAN-OS: 10.1.14-h1 - 11.2.2

CPE2.3

• cpe:2.3:o:palo_alto_networks:pan-os:10.1.14:*:*:*:*:*:*:*
• cpe:2.3:o:palo_alto_networks:pan-os:10.2.13:*:*:*:*:*:*:*
• cpe:2.3:o:palo_alto_networks:pan-os:11.0.6:*:*:*:*:*:*:*
• cpe:2.3:o:palo_alto_networks:pan-os:11.1.4:*:*:*:*:*:*:*
• cpe:2.3:o:palo_alto_networks:pan-os:11.2.2:*:*:*:*:*:*:*

External links

http://security.paloaltonetworks.com/CVE-2024-3393

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?

Yes. This vulnerability is being exploited in the wild.