CVE-2024-2551: PAN-OS: Firewall Denial of Service (DoS) Using a Specially Crafted Packet (Severity: MEDIUM)
First published: Wed Nov 13 2024(Updated: )
A null pointer dereference vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to stop a core system service on the firewall by sending a crafted packet through the data plane that causes a denial of service (DoS) condition. Repeated attempts to trigger this condition result in the firewall entering maintenance mode.
Credit: psirt@paloaltonetworks.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Palo Alto Networks PAN-OS | >=10.1.0<10.1.14 | |
| Palo Alto Networks PAN-OS | >=10.2.0<10.2.4 | |
| Palo Alto Networks PAN-OS | >=11.0.0<11.0.5 | |
| Palo Alto Networks PAN-OS | =10.2.4 | |
| Palo Alto Networks PAN-OS | =10.2.4-h2 | |
| Palo Alto Networks PAN-OS | =10.2.4-h3 | |
| Palo Alto Networks PAN-OS | =10.2.4-h4 | |
| Palo Alto Networks Cloud NGFW | ||
| Palo Alto PAN-OS | <11.0.5=11.0.0<10.2.4-h6=10.2.0<10.1.14=10.1.0 | 11.0.5 10.2.4-h6 10.2.5 10.1.14 |
| Prisma |
Remedy
This issue is fixed in PAN-OS 10.1.14, PAN-OS 10.2.4-h6, PAN-OS 10.2.5, PAN-OS 11.0.5, and all later PAN-OS versions.
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-2551?
CVE-2024-2551 is considered a critical vulnerability as it allows unauthenticated attackers to execute a denial of service (DoS) attack on the firewall.
How do I fix CVE-2024-2551?
To fix CVE-2024-2551, update your PAN-OS software to a version that is not affected, specifically version 11.0.5 or any patched version from the affected branches.
Which products are affected by CVE-2024-2551?
CVE-2024-2551 impacts Palo Alto Networks PAN-OS, Cloud NGFW, and Prisma Access, particularly those running specific vulnerable versions.
What type of attack is possible due to CVE-2024-2551?
CVE-2024-2551 enables a denial of service (DoS) condition by allowing attackers to stop core system services on affected firewalls.
Is user authentication required to exploit CVE-2024-2551?
No, user authentication is not required to exploit CVE-2024-2551, making it especially dangerous.
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