Threats Tagged 'firewall'

A security update addresses multiple vulnerabilities discovered during routine security review, including authentication bypass issues affecting management products. One vulnerability (CVE-2026-16232) has been exploited in the wild against a limited number of customers with specific configurations where Management is exposed directly to the internet without IP restrictions. The affected systems include Security Management and Multi-Domain Management across multiple versions. Two additional vulnerabilities address authentication bypass with privilege escalation and local privilege escalation in GaiaOS WebUI. All impacted customers have been notified, and Smart-1 Cloud customers are already protected. Indicators of compromise include six IP addresses associated with the exploitation activity. Installation of the latest Jumbo hotfix is recommended along with implementation of security best practices.

UMBRELLA STAND is a sophisticated malware targeting FortiGate 100D series firewalls produced by Fortinet. It contains remote shell execution functionality, configurable beacon frequency, and AES-encrypted C2 communications. The malware uses fake TLS on port 443 to beacon to its C2 server and has the ability to run shell commands. It employs various defense evasion techniques such as hidden folders, generic filenames, and string encryption. UMBRELLA STAND also has persistence mechanisms through reboot hooking and ldpreload. Associated tooling includes BusyBox, nbtscan, tcpdump, and openLDAP. The malware demonstrates operational security considerations and shares similarities with previously reported COATHANGER malware.

MediumMalwareGermanyFranceUnited Kingdom+7#process injection#persistence#firewall