Apache CloudStack 4.0.0 before 4.0.2 and Citrix CloudPlatform (formerly Citrix CloudStack) 3.0.x before 3.0.6 Patch C uses a hash of a predictable sequence, which makes it easier for remote attackers to guess the console access URL via a brute force attack.
Apache CloudStack 4.0.0 before 4.0.2 and Citrix CloudPlatform (formerly Citrix CloudStack) 3.0.x before 3.0.6 Patch C allows remote attackers to bypass the console proxy authentication by leveraging knowledge of the source code.
Citrix CloudPlatform (formerly Citrix CloudStack) 3.0.x before 3.0.6 Patch C does not properly restrict access to VNC ports on the management network, which allows remote attackers to have unspecified impact via unknown vectors.