CISA Warns of Palo Alto Vulnerability Exploited by Hackers

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The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has warned that threat actors are actively exploiting a vulnerability that affects Palo Alto Networks PAN-OS. The vulnerability, which is tracked as CVE-2022-0028, has a severity score of 8.6.

The vulnerability is due to incorrect configuration of URL filtering policies, which could allow an unauthenticated remote attacker to conduct reflected and amplified TCP Denial-of-Service DoS attacks.

Affected product versions include PAN-OS 10.2 (version < 10.2.2-h2), PAN-OS 10.1 (version < 10.1.6-h6), PAN-OS 10.0 (version < 10.0.11-h1), PAN-OS 9.1 (version < 9.1.14-h4), PAN-OS 9.0 (version < 9.0.16-h3), and PAN-OS 8.1 (version < 8.1.23-h1).

Customers of affected products are advised to apply the patches to mitigate potential threats, and Federal Civilian Branch (FCEB) agencies are required to update to the latest version by September 12, 2022.

Palo Alto Networks said the vulnerability was discovered after it was pointed out that vulnerable firewall appliances from various vendors, including their networks, were being used as part of an attempted reflected denial-of -service (RDoS) attack.

The sources for this piece include an article in TheHackerNews.


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