A remote code execution issue was discovered in Zoho ManageEngine Applications Manager before 13.6 (build 13640). The publicly accessible testCredential.do endpoint takes multiple user inputs and validates supplied credentials by accessing a specified system. This endpoint calls several internal classes, and then executes a PowerShell script. If the specified system is OfficeSharePointServer, then the username and password parameters to this script are not validated, leading to Command Injection.
www.securityfocus.com/bid/103358
github.com/rapid7/metasploit-framework/pull/9684
pentest.blog/advisory-manageengine-applications-manager-remote-code-execution-sqli-and/
pitstop.manageengine.com/portal/community/topic/security-vulnerability-issues-fixed-upgrade-to-the-latest-version-of-applications-manager
www.exploit-db.com/exploits/44274/
www.manageengine.com/products/applications_manager/security-updates/security-updates-cve-2018-7890.html