Siemens SICAM WEB firmware for SICAM A8000 RTU prior 05.30 Login Screen Log cross site scripting

Summaryinfo

A vulnerability marked as problematic has been reported in Siemens SICAM WEB firmware for SICAM A8000 RTU. This issue affects some unknown processing of the component Login Screen. Performing a manipulation results in cross site scripting (Log). This vulnerability was named CVE-2020-15781. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Siemens SICAM WEB firmware for SICAM A8000 RTU (Firmware Software). This affects an unknown code of the component Login Screen. The manipulation with an unknown input leads to a cross site scripting vulnerability (Log). CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

A vulnerability has been identified in SICAM WEB firmware for SICAM A8000 RTUs (All versions < V05.30). The login screen does not sufficiently sanitize input, which enables an attacker to generate specially crafted log messages. If an unsuspecting victim views the log messages via the web browser, these log messages might be interpreted and executed as code by the web application. This Cross-Site-Scripting (XSS) vulnerability might compromize the confidentiality, integrity and availability of the web application.

The weakness was presented 08/14/2020 (Website). The advisory is shared at cert-portal.siemens.com. This vulnerability is uniquely identified as CVE-2020-15781 since 07/15/2020. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading to version 05.30 eliminates this vulnerability.

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Productinfo

Type

• Firmware Software

Vendor

• Siemens

Name

• SICAM WEB firmware for SICAM A8000 RTU

License

• commercial

Website

• Vendor: https://www.siemens.com/

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