CVE-2015-7361

FortiOS 5.2.3, when configured to use High Availability HA and the dedicated management interface is enabled, does not require authentication for access to the ZebOS shell on the HA dedicated management interface, which allows remote attackers to obtain shell access via unspecified vectors...

Fortinet FortiOS 5.2.3 ZebOS Shell Remote Command Execution (FG-IR-15-020)

The remote host is running Fortinet FortiOS 5.2.3. It is, therefore, affected by a remote command execution vulnerability that allows an unauthenticated, remote attacker to execute arbitrary commands via the internal ZebOS shell on the high availability HA dedicated management interface. C Tenabl...

ZebOS routing remote shell service enabled

...