Last month, Volexity reported on its discovery of zero-day, in-the-wild exploitation of CVE-2024-3400 in the GlobalProtect feature of Palo Alto Networks PAN-OS by a threat actor Volexity tracks as UTA0218. Palo Alto Networks released an advisory and threat protection signature for the vulnerability within 48 hours of Volexity’s disclosure of the issue to Palo Alto Networks, with official patches and fixes following soon after. Volexity has conducted several additional incident response investigations and proactive analyses of Palo Alto Networks firewall devices since the initial two cases described in Volexity’s blog post. These recent investigations were based primarily on data collected from customers generating a tech support file (TSF) from their devices and providing them to Volexity. From these investigations and analyses, Volexity has observed the following: Shortly after the advisory for CVE-2024-3400 was released, scanning and exploitation of the vulnerability immediately increased. The uptick in exploitation appears to have been associated […]
zero-day
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Detecting Compromise of CVE-2024-3400 on Palo Alto Networks GlobalProtect Devices
May 15, 2024
by Volexity Threat Research
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Zero-Day Exploitation of Unauthenticated Remote Code Execution Vulnerability in GlobalProtect (CVE-2024-3400)
April 12, 2024
by Volexity Threat Research
Volexity would like to thank Palo Alto Networks for their partnership, cooperation, and rapid response to this critical issue. Their research can be found here. On April 10, 2024, Volexity identified zero-day exploitation of a vulnerability found within the GlobalProtect feature of Palo Alto Networks PAN-OS at one of its network security monitoring (NSM) customers. Volexity received alerts regarding suspect network traffic emanating from the customer’s firewall. A subsequent investigation determined the device had been compromised. The following day, April 11, 2024, Volexity observed further, identical exploitation at another one of its NSM customers by the same threat actor. The threat actor, which Volexity tracks under the alias UTA0218, was able to remotely exploit the firewall device, create a reverse shell, and download further tools onto the device. The attacker focused on exporting configuration data from the devices, and then leveraging it as an entry point to move laterally within […]