CVE-2022-0028 Palo Alto Networks PAN-OS: software flaw
In plain words: A mistake in the software that attackers have found a way to abuse. Depends on the product — see the description and the vendor advisory.
Confirmed exploited by CISA on · US federal patch deadline Sep 12, 2022
What to do
- Install Palo Alto Networks's security update for PAN-OS. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Patch edge devices first — attackers often start scanning for them within hours of a fix.
- Never expose the device's admin page to the internet.
- After patching a device that was exposed, follow the vendor's compromise checks, end active sessions and change passwords.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: They face the internet and guard the whole network, so a flaw here can hand attackers a way in — and these devices usually run no antivirus, so break-ins go unnoticed.
The details
- Official name
- Palo Alto Networks PAN-OS Reflected Amplification Denial-of-Service Vulnerability
- Product
- Palo Alto Networks PAN-OS
- CISA description
- A Palo Alto Networks PAN-OS URL filtering policy misconfiguration could allow a network-based attacker to conduct reflected and amplified TCP denial-of-service (RDoS) attacks.
- Type of flaw
- Software flaw (CWE-940)
- Confirmed exploited
- Aug 22, 2022
- US federal patch deadline
- Sep 12, 2022
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Answering about CVE-2022-0028 ·
Questions about CVE-2022-0028
Is CVE-2022-0028 being exploited?
Yes. CISA added CVE-2022-0028 to its Known Exploited Vulnerabilities catalog on Aug 22, 2022, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2022-0028?
Install Palo Alto Networks's security update for PAN-OS. If no update exists, follow the vendor's workaround or stop using the product until one ships. Patch edge devices first — attackers often start scanning for them within hours of a fix.
Am I affected by CVE-2022-0028?
Only if you use Palo Alto Networks PAN-OS. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.