A RootCA vulnerability found in Trend Micro Password Manager for Windows and macOS exists where the localhost.key of RootCA.crt might be improperly accessed by an unauthorized party and could be used to create malicious self-signed SSL certificates, allowing an attacker to misdirect a user to phishing sites.

A RootCA vulnerability found in Trend Micro Password Manager for Windows and macOS exists where the localhost.key of RootCA.crt might be improperly accessed by an unauthorized party and could be used to create malicious self-signed SSL certificates, allowing an attacker to misdirect a user to phishing sites.

Password Manager provided by Trend Micro Incorporated generates a key pair and a root certificate on product installation. The generated private key is not properly protected and any non-administrative user can retrieve the private key (CWE-200). Note that this vulnerability is different from JVN#49593434. BlackWingCat of PinkFlyingWhale reported this vulnerability to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.