Siemens CP-8031/CP-8050 prior CPCI85 V05 Web Server Remote command injection

Summaryinfo

A vulnerability was found in Siemens CP-8031 and CP-8050. It has been rated as critical. This affects an unknown part of the component Web Server. The manipulation of the argument Remote leads to command injection. This vulnerability is documented as CVE-2023-28489. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Siemens CP-8031 and CP-8050 and classified as very critical. This issue affects an unknown function of the component Web Server. The manipulation of the argument Remote 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:

A vulnerability has been identified in CP-8031 MASTER MODULE (All versions < CPCI85 V05), CP-8050 MASTER MODULE (All versions < CPCI85 V05). Affected devices are vulnerable to command injection via the web server port 443/tcp, if the parameter “Remote Operation” is enabled. The parameter is disabled by default. The vulnerability could allow an unauthenticated remote attacker to perform arbitrary code execution on the device.

The weakness was released 04/11/2023 as ssa-472454. It is possible to read the advisory at cert-portal.siemens.com. The identification of this vulnerability is CVE-2023-28489 since 03/16/2023. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/11/2023). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Upgrading to version CPCI85 V05 eliminates this vulnerability.

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Productinfo

Vendor

• Siemens

Name

• CP-8031
• CP-8050

License

• commercial

Website

• Vendor: https://www.siemens.com/

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