CVE-2024-50591

Local Privilege Escalation via Command Injection

Description

An attacker with local access the to medical office computer can escalate his Windows user privileges to "NT AUTHORITY\SYSTEM" by exploiting a command injection vulnerability in the Elefant Update Service. The command injection can be exploited by communicating with the Elefant Update Service which is running as "SYSTEM" via Windows Named Pipes.The Elefant Software Updater (ESU) consists of two components. An ESU service which runs as "NT AUTHORITY\SYSTEM" and an ESU tray client which communicates with the service to update or repair the installation and is running with user permissions. The communication is implemented using named pipes. A crafted message of type "MessageType.SupportServiceInfos" can be sent to the local ESU service to inject commands, which are then executed as "NT AUTHORITY\SYSTEM".

Remediation

Solution:

  • The vendor fixed the issue in version 1.4.2.1811 (or higher) of the Elefant Software Updater which can be downloaded from hasomed.de/produkte/elefant/ https://hasomed.de/produkte/elefant/ or via the Elefant Software Updater itself.

Workaround:

  • While workarounds such as modifying the Elefant windows firewall rules and manually adjusting file permissions in the installation folder are feasible workarounds for some of the vulnerabilities, it is recommended to install the patches provided by the vendor.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.32%
Third-Party Advisory sec-consult.com
Affected: HASOMED Elefant Software Updater
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2024-50591?
CVE-2024-50591 has been scored as a high severity vulnerability.
How to fix CVE-2024-50591?
To fix CVE-2024-50591: The vendor fixed the issue in version 1.4.2.1811 (or higher) of the Elefant Software Updater which can be downloaded from hasomed.de/produkte/elefant/ https://hasomed.de/produkte/elefant/ or via the Elefant Software Updater itself.
Is CVE-2024-50591 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-50591 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-50591?
CVE-2024-50591 affects HASOMED Elefant Software Updater.
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