CVE Catalog

CVE-2024-50592

High
Published: Translated: NVD NIST

Summary

A vulnerability in the Elefant Update Service allows a local attacker to escalate privileges to SYSTEM by exploiting a race condition during repair or update. The attacker overwrites an executable in the installation folder (C:\Elefant1) between the copy and execution steps.

Risk Assessment

An attacker with physical access to the medical office computer can gain full control over the operating system, compromising patient data confidentiality and integrity as well as the entire IT infrastructure.

Recommendation

Apply the vendor-supplied update immediately. Until then, restrict local access to workstations and monitor processes related to the update service.

Related vulnerabilities

Original NVD description (English source)

An attacker with local access the to medical office computer can escalate his Windows user privileges to "NT AUTHORITY\SYSTEM" by exploiting a race condition in the Elefant Update Service during the repair or update process. When using the repair function, the service queries the server for a list of files and their hashes. In addition, instructions to execute binaries to finalize the repair process are included. The executables are executed as "NT AUTHORITY\SYSTEM" after they are copied over to the user writable installation folder (C:\Elefant1). This means that a user can overwrite either "PostESUUpdate.exe" or "Update_OpenJava.exe" in the time frame after the copy and before the execution of the final repair step. The overwritten executable is then executed as "NT AUTHORITY\SYSTEM".

Vulnerability data from NVD (NIST) · CISA KEV · EPSS