J2ee Engine Cross-site Scripting

** UNSUPPORTED WHEN ASSIGNED ** A cross-site scripting (XSS) vulnerability in SAP J2EE Engine 7.01 allows remote attackers to inject arbitrary web script via the wsdlPath parameter to /ctcprotocol/Protocol. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. (2021-08-09, CVE-2018-17865)

** UNSUPPORTED WHEN ASSIGNED ** A cross-site scripting (XSS) vulnerability in SAP J2EE Engine/7.01/Fiori allows remote attackers to inject arbitrary web script via the sys_jdbc parameter to /TestJDBC_Web/test2. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. (2021-08-09, CVE-2018-17862)

** UNSUPPORTED WHEN ASSIGNED ** A cross-site scripting (XSS) vulnerability in SAP J2EE Engine/7.01/Portal/EPP allows remote attackers to inject arbitrary web script via the wsdlLib parameter to /ctcprotocol/Protocol. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. (2021-08-09, CVE-2018-17861)

Cross site scripting is an attack where a web page executes code that is injected by an adversary. It usually appears, when users input is presented. This attack can be used to impersonate a user, take over control of the session, or even steal API keys.

The attack can be executed e.g. when you application injects the request parameter directly into the HTML code of the page returned to the user:

https://server.com/confirmation?message=Transaction+Complete

what results in:

<span>Confirmation: Transaction Complete</span>

In that case the message can be modified to become a valid Javascript code, e.g.:

https://server.com/confirmation?message=<script>dangerous javascript code here</script>

and it will be executed locally by the user's browser with full access to the user's personal application/browser data:

<span>Confirmation: <script>dangerous javascript code here</script></span>