This exploit abuses a vulnerability in the HP Data Protector. The vulnerability exists in the Backup client service, which listens by default on TCP/5555. The EXEC_INTEGUTIL request allows to execute arbitrary commands from a restricted directory. Since it includes a perl executable, it's possible to use an EXEC_INTEGUTIL packet to execute arbitrary code. On linux targets, the perl binary isn't on the restricted directory, but an EXEC_BAR packet can be used to access the perl binary, even in the last version of HP Data Protector for linux. This Metasploit module has been tested successfully on HP Data Protector 9 over Windows 2008 R2 64 bits and CentOS 6 64 bits.

Source: HP Data Protector EXEC_INTEGUTIL Remote Code Execution