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@The GreyNoise Blog
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Cybersecurity researchers have issued a warning about a significant surge in suspicious login scanning activity targeting Palo Alto Networks PAN-OS GlobalProtect gateways. Nearly 24,000 unique IP addresses have been observed attempting to access these portals, raising concerns among experts. The activity is suspected to be a coordinated effort aimed at identifying exposed or vulnerable systems, potentially as a precursor to targeted exploitation. GreyNoise, a threat intelligence firm, has indicated that this pattern suggests a systematic probing of network defenses.
The surge reportedly began on March 17, 2025, with the number of unique IP addresses involved peaking at nearly 20,000 per day before tapering off around March 26. Of the total IPs involved, a smaller subset of 154 have been flagged as malicious. The United States and Canada have been identified as the primary sources of the traffic, while systems in the United States, the United Kingdom, Ireland, Russia, and Singapore are the main targets. Organizations using Palo Alto Networks products are urged to take immediate steps to secure their login portals.
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TIGR Threat Watch@Security Risk Advisors
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Multiple vulnerabilities have been discovered in Palo Alto Networks' Expedition migration tool, posing significant security risks. These flaws could allow attackers to gain unauthorized access to sensitive data such as usernames, cleartext passwords, device configurations, and API keys associated with firewalls running PAN-OS software. An OS command injection vulnerability, identified as CVE-2025-0107, allows authenticated attackers to execute arbitrary OS commands, potentially leading to data breaches and system compromise. Other vulnerabilities include SQL injection (CVE-2025-0103), reflected cross-site scripting (CVE-2025-0104), arbitrary file deletion (CVE-2025-0105) and a wildcard expansion enumeration (CVE-2025-0106).
The Expedition tool, intended for firewall migration and optimization, reached its End of Life (EoL) on December 31, 2024, and is no longer supported or updated. Organizations are strongly advised to transition away from using Expedition and to explore alternative migration tools. While Palo Alto Networks has released patches in versions 1.2.100 and 1.2.101, no further updates are planned for the tool. Until users can migrate, it is recommended to restrict network access to Expedition to only authorized users, hosts, and networks, or to shut down the service if it's not in use.
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