Determining the RouterOS version to match it with known CVEs.
Hundreds of thousands of routers were compromised. Attackers used the access to build massive botnets (like Meris), inject malicious scripts into users' web traffic, and conduct cryptocurrency mining. 2. The RouterOS Remote Code Execution (CVE-2019-3943) mikrotik routeros authentication bypass vulnerability
An authentication bypass vulnerability typically stems from software flaws in how RouterOS handles management connections. When exploited, it can allow a remote attacker to: Determining the RouterOS version to match it with known CVEs
: The router serves as a beachhead. Attackers use it to pivot into internal local area networks (LANs), bypassing external firewalls to attack servers, workstations, and IoT devices. Attackers use it to pivot into internal local
Unexplained reboot cycles or configuration changes in the system log.
MikroTik patched the issue in and in Long-term version 6.49.8 (July 2023) . All users should upgrade to these versions or later.