Palo Alto’s Firewall Flaw: A DoS Drama with Moderate Urgency
Palo Alto Networks patches a zero-day vulnerability in its firewalls that allowed attackers to cause denial-of-service attacks. The flaw, CVE-2024-3393, impacts the DNS Security feature, causing firewalls to reboot with a simple packet. Despite its high severity, exploitation requires specific DNS Security conditions to be met.
Hot Take:
Looks like Palo Alto Networks just got their firewall’s alarm clock stuck on ‘snooze’ with this latest zero-day vulnerability. Who knew a simple packet could hit the reboot button harder than a Monday morning? But don’t worry, they’ve given it a ‘moderate urgency’ rating—because apparently, a firewall catching some Z’s isn’t such a big deal unless you’re on a DNS Security sleepover.
Key Points:
- Palo Alto Networks patched a zero-day vulnerability (CVE-2024-3393) affecting its firewall software, PAN-OS.
- The vulnerability allows unauthenticated attackers to reboot firewalls using a specially crafted packet.
- The issue affects devices with DNS Security logging enabled and requires specific licenses to be exploitable.
- Patches are available for PAN-OS versions 10.1.14-h8, 10.2.10-h12, 11.1.5, and 11.2.3, with workarounds also provided.
- Estonia’s CERT-EE assisted in the forensic analysis of the vulnerability, but details on its discovery remain unclear.
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