CVE-2024-3393
Palo Alto Networks PAN-OS Malicious DNS Packet Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 20 January 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
A Denial of Service vulnerability in the DNS Security feature of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to send a malicious packet through the data plane of the firewall that reboots the firewall. Repeated attempts to trigger this condition will cause the firewall to enter maintenance mode.
- CVSS 4.0
- 8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 28.41% probability · 98th percentile
- CISA KEV
- Listed 30 December 2024 · due 20 January 2025
- Weakness
- CWE-754
- Affected
- paloaltonetworks/pan-os · paloaltonetworks/prisma access
- Source
- psirt@paloaltonetworks.com
CISA notes
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://security.paloaltonetworks.com/CVE-2024-3393 ; https://nvd.nist.gov/vuln/detail/CVE-2024-3393
References
- https://security.paloaltonetworks.com/CVE-2024-3393Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-3393US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.