Lenovo System Update vulnerabilities

Lenovo System Update (formerly ThinkVantage System Update) before version 5.07.0013 allows local users to submit commands to the System Update service (SUService.exe) and gain privileges by launching signed Lenovo executables.

Lenovo System Update before version 5.07.0019 allows local users to gain privileges by predicting the tvsu_tmp_xxxxxXXXXX account credentials, which requires knowledge of the time this account was created.

Lenovo System Update (formerly ThinkVantage System Update) before 5.06.0034 does not properly validate CA chains during signature validation, allowing man-in-the-middle attackers to upload and execute arbitrary files via a crafted certificate.

Lenovo System Update before version 5.06.0034 uses predictable security tokens, allowing local users to gain privileges by sending a valid token with a command to the System Update service (SUService.exe) through an unspecified named pipe.

A potential authentication bypass vulnerability was reported in Lenovo System Update that could allow a local authenticated user to execute arbitrary code with elevated privileges.