Improper input validation vulnerability in HANDY Groupware’s ActiveX moudle allows attackers to download or execute arbitrary files. This vulnerability can be exploited by using the file download or execution path as the parameter value of the vulnerable function.

An arbitrary file download and execution vulnerability was found in the HShell.dll of handysoft Co., Ltd groupware ActiveX module. This issue is due to missing support for integrity check of download URL or downloaded file hash.

hslogin2.dll ActiveX Control in Groupware contains a vulnerability that could allow remote files to be downloaded and executed by setting the arguments to the activex method. This is due to a lack of integrity verification of the policy files referenced in the update process, and a remote attacker could induce a user to crafted web page, causing damage such as malicious code infection.

ActiveX Control(HShell.dll) in Handy Groupware 1.7.3.1 for Windows 7, 8, and 10 allows an attacker to execute arbitrary command via the ShellExec method.