Siemens SINEMA Server V14.0 SP2 Session privileges assignment

Summaryinfo

A vulnerability described as critical has been identified in Siemens SINEMA Server V14.0 SP2. This impacts an unknown function of the component Session Handler. The manipulation results in privileges assignment. This vulnerability is known as CVE-2019-10940. It is possible to launch the attack remotely. No exploit is available. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Siemens SINEMA Server V14.0 SP2. Affected is an unknown code block of the component Session Handler. The manipulation with an unknown input leads to a privileges assignment vulnerability. CWE is classifying the issue as CWE-266. A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A vulnerability has been identified in SINEMA Server (All versions < V14.0 SP2 Update 1). Incorrect session validation could allow an attacker with a valid session, with low privileges, to perform firmware updates and other administrative operations on connected devices. The security vulnerability could be exploited by an attacker with network access to the affected system. An attacker must have access to a low privileged account in order to exploit the vulnerability. An attacker could use the vulnerability to compromise confidentiality, integrity, and availability of the affected system and underlying components. At the time of advisory publication no public exploitation of this security vulnerability was known.

The weakness was published 01/16/2020. This vulnerability is traded as CVE-2019-10940 since 04/08/2019. It is possible to launch the attack remotely. The requirement for exploitation is a authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Applying the patch V14.0 SP2 Update 1 is able to eliminate this problem.

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Productinfo

Vendor

• Siemens

Name

• SINEMA Server

Version

• V14.0 SP2

License

• commercial

Website

• Vendor: https://www.siemens.com/

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