Enet

Integer signedness error in the enet_protocol_handle_incoming_commands function in protocol.c for ENet library CVS version Jul 2005 and earlier, as used in products including (1) Cube, (2) Sauerbraten, and (3) Duke3d_w32, allows remote attackers to cause a denial of service (application crash) via a packet with a large command length value, which leads to an invalid memory access.

eNet SMART HOME server 2.2.1 and 2.3.1 contains a privilege escalation vulnerability due to insufficient authorization checks in the setUserGroup JSON-RPC method. A low-privileged user (UG_USER) can send a crafted POST request to /jsonrpc/management specifying their own username to elevate their account to the UG_ADMIN group, bypassing intended access controls and gaining administrative capabilities such as modifying device configurations, network settings, and other smart home system functions.

eNet SMART HOME server 2.2.1 and 2.3.1 contains a missing authorization vulnerability in the resetUserPassword JSON-RPC method that allows any authenticated low-privileged user (UG_USER) to reset the password of arbitrary accounts, including those in the UG_ADMIN and UG_SUPER_ADMIN groups, without supplying the current password or having sufficient privileges. By sending a crafted JSON-RPC request to /jsonrpc/management, an attacker can overwrite existing credentials, resulting in direct account takeover with full administrative access and persistent privilege escalation.

eNet SMART HOME server 2.2.1 and 2.3.1 contains a missing authorization vulnerability in the deleteUserAccount JSON-RPC method that permits any authenticated low-privileged user (UG_USER) to delete arbitrary user accounts, except for the built-in admin account. The application does not enforce role-based access control on this function, allowing a standard user to submit a crafted POST request to /jsonrpc/management specifying another username to have that account removed without elevated permissions or additional confirmation.

eNet SMART HOME server 2.2.1 and 2.3.1 ships with default credentials (user:user, admin:admin) that remain active after installation and commissioning without enforcing a mandatory password change. Unauthenticated attackers can use these default credentials to gain administrative access to sensitive smart home configuration and control functions.

The enet_protocol_handle_send_fragment function in protocol.c for ENet library CVS version Jul 2005 and earlier, as used in products including (1) Cube, (2) Sauerbraten, and (3) Duke3d_w32, allows remote attackers to cause a denial of service (application crash) via a packet fragment with a large total data size, which triggers an application abort when memory allocation fails.