Hewlett-Packard LeftHand Virtual SAN Appliance Hydra Login Remote Command Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of HP LeftHand Virtual SAN Appliance. Authentication is not required to exploit this vulnerability. The flaw exists within the hydra service, specifically with the LHNSessionManager component. This process listens on TCP port 13838. When attempting to authenticate a remote client, the process fails to properly verify the length of the username parameter before extracting into a local stack buffer. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the root user.