Hasomed Elefant prior 1.4.2.1811 Update Service command injection

Summaryinfo

A vulnerability classified as critical has been found in Hasomed Elefant. Impacted is an unknown function of the component Update Service. The manipulation leads to command injection. This vulnerability is documented as CVE-2024-50591. The attack needs to be performed locally. Additionally, an exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Hasomed Elefant and classified as critical. This issue affects some unknown processing of the component Update Service. The manipulation with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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".

The weakness was released by Tobias Niemann and Sec Consult Vulnerability Lab. The advisory is shared at r.sec-consult.com. The identification of this vulnerability is CVE-2024-50591 since 10/25/2024. The exploitation is known to be easy. An attack has to be approached locally. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

The exploit is available at packetstormsecurity.com. It is declared as proof-of-concept.

Upgrading to version 1.4.2.1811 eliminates this vulnerability.

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Productinfo

Vendor

• Hasomed

Name

• Elefant

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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Entryinfo

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