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".
History

Fri, 08 Nov 2024 16:15:00 +0000

Type Values Removed Values Added
First Time appeared Hasomed
Hasomed elefant Software Updater
CPEs cpe:2.3:a:hasomed:elefant_software_updater:*:*:*:*:*:*:*:*
Vendors & Products Hasomed
Hasomed elefant Software Updater
Metrics cvssV3_1

{'score': 7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 08 Nov 2024 12:30:00 +0000

Type Values Removed Values Added
Description 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".
Title Local Privilege Escalation via Race Condition
Weaknesses CWE-367
References

cve-icon MITRE

Status: PUBLISHED

Assigner: SEC-VLab

Published: 2024-11-08T12:15:25.835Z

Updated: 2024-11-08T16:04:22.869Z

Reserved: 2024-10-25T07:26:12.628Z

Link: CVE-2024-50592

cve-icon Vulnrichment

Updated: 2024-11-08T16:04:14.845Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-11-08T13:15:03.670

Modified: 2024-11-08T19:01:03.880

Link: CVE-2024-50592

cve-icon Redhat

No data.