An input validation weakness was discovered in XCC that could allow a valid, authenticated XCC user with elevated privileges to perform command injection through specially crafted command line input in the XCC SSH captive shell.

An input validation weakness was discovered in XCC that could allow a valid, authenticated XCC user with elevated privileges to perform command injection or cause a recoverable denial of service using a specially crafted file.

A privilege escalation vulnerability was discovered in XCC that could allow a valid, authenticated XCC user with elevated privileges to perform command injection via specially crafted file uploads.

A privilege escalation vulnerability was discovered in XCC that could allow a valid, authenticated XCC user with elevated privileges to perform command injection via specially crafted IPMI commands.

A command injection vulnerability was identified in SMM/SMM2 and FPC that could allow an authenticated user with elevated privileges to execute system commands when performing a specific administrative function.

The Remote Mount feature can potentially be abused by valid, authenticated users to make connections to internal services that may not normally be accessible to users. Internal service access controls, as applicable, remain in effect.

A buffer overflow exists in the Remote Presence subsystem which can potentially allow valid, authenticated users to cause a recoverable subsystem denial of service.

A valid, authenticated XCC user with read-only permissions can modify custom user roles on other user accounts and the user trespass message through the XCC CLI. There is no exposure if SSH is disabled or if there are no users assigned optional read-only permissions.

A valid XCC user's local account permissions overrides their active directory permissions under specific configurations. This could lead to a privilege escalation. To be vulnerable, LDAP must be configured for authentication/authorization and logins configured as “Local First, then LDAP”.

A valid LDAP user, under specific conditions, will default to read-only permissions when authenticating into XCC. To be vulnerable, XCC must be configured to use an LDAP server for Authentication/Authorization and have the login permission attribute not defined.

A valid, authenticated administrative user can query a web interface API to reveal the configured LDAP client password used by XCC to authenticate to an external LDAP server in certain configurations. There is no exposure where no LDAP client password is configured

A valid, authenticated user may be able to trigger a denial of service of the XCC web user interface or other undefined behavior through a format string injection vulnerability in a web interface API.

A valid, authenticated XCC user with read only access may gain elevated privileges through a specifically crafted API call.

An authenticated XCC user can change permissions for any user through a crafted API command.

A valid, authenticated user with limited privileges may be able to use specifically crafted web management server API calls to execute a limited number of commands on SMM v1, SMM v2, and FPC that the user does not normally have sufficient privileges to execute.

An unauthenticated  denial of service vulnerability exists in the SMM v1, SMM v2, and FPC management web server which can be triggered under crafted conditions. Rebooting SMM or FPC will restore access to the management web server.

An authentication bypass vulnerability was discovered in an internal service of the Lenovo Fan Power Controller2 (FPC2) and Lenovo System Management Module (SMM) firmware during an that could allow an unauthenticated attacker to execute commands on the SMM and FPC2. SMM2 is not affected.

An authentication bypass vulnerability was discovered in the web interface of the Lenovo Fan Power Controller2 (FPC2) and Lenovo System Management Module (SMM) firmware that could allow an unauthenticated attacker to execute commands on the SMM and FPC2. SMM2 is not affected.

System Management Module Vulnerabilities

In System Management Module (SMM) versions prior to 1.06, if an attacker manages to log in to the device OS, the validation of software updates can be circumvented.

System Management Module Vulnerabilities

In System Management Module (SMM) versions prior to 1.06, the SMM contains weak default root credentials which could be used to log in to the device OS -- if the attacker manages to enable SSH or Telnet connections via some other vulnerability.