A vulnerability classified as critical has been found in Siemens CP-8000 MASTER MODULE, CP-8021 MASTER MODULE and CP-8022 MASTER MODULE WITH GPRS (affected version unknown). Affected is an unknown functionality of the component Web Server Module. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality. CVE summarizes:

A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70°C (All versions), CP-8000 MASTER MODULE WITH I/O -40/+70°C (All versions), CP-8021 MASTER MODULE (All versions), CP-8022 MASTER MODULE WITH GPRS (All versions). The component allows to activate a web server module which provides unauthenticated access to its web pages. This could allow an attacker to retrieve debug-level information from the component such as internal network topology or connected systems.

The weakness was released 08/10/2022 as ssa-185638. The advisory is available at cert-portal.siemens.com. This vulnerability is traded as CVE-2021-46304 since 01/14/2022. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 09/04/2022). This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Productinfo

Vendor

• Siemens

Name

• CP-8000 MASTER MODULE
• CP-8021 MASTER MODULE
• CP-8022 MASTER MODULE WITH GPRS

License

• commercial

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