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Multiple vulnerabilities found in I-O DATA routers UD-LT1 and UD-LT1/EX are being actively exploited. JPCERT/CC, a Japanese cybersecurity organization, has warned that these issues could lead to serious attacks, including credential theft, command execution, and total firewall bypass.
“The developer states that attacks exploiting these vulnerabilities have been observed,” warns JPCERT/CC in their official vulnerability note. Malicious actors are aware of these weaknesses and are exploiting them to compromise vulnerable routers.
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The vulnerabilities impact firmware versions 2.1.8 and older and include:
CVE-2024-45841: Sensitive resource permissions are improperly set, letting low-level users access critical files. For instance, a third party with guest account credentials could access files with authentication information.
CVE-2024-47133: Lets logged-in admin users run any commands on the device due to poor input checks in configuration management.
CVE-2024-52564: Hidden features in the firmware let remote attackers disable the device firewall and change settings without a password.
JPCERT/CC warns, “A remote attacker may disable the firewall function of the affected products. As a result, an arbitrary OS command may be executed and/or configuration settings of the device may be altered.”
I-O DATA has released firmware version 2.1.9 to fix CVE-2024-52564. Affected router users should update their firmware immediately. Updates for CVE-2024-45841 and CVE-2024-47133 are expected by December 18, 2024. In the meantime, users should check and adjust their router settings as a temporary solution.
Outdated firmware may have serious security vulnerabilities that can expose your network to attacks. Regularly check for updates and install them promptly. For detailed guidance, see the official advisory from I-O DATA.
