The handle_certificate function in /vmi/manager/engine/management/commands/apns_worker.py in Trend Micro Virtual Mobile Infrastructure before 5.1 allows remote authenticated users to execute arbitrary commands via shell metacharacters in the password to api/v1/cfg/oauth/save_identify_pfx/.
https://success.trendmicro.com/solution/1115411
https://qkaiser.github.io/pentesting/trendmicro/2016/10/08/trendmicro-vmi/