SAP security note 1687962, “Unauthorized modification of displayed content in Calendar”, is a note. Below are the symptom and SAP recommended solution.
Description
Symptom
CRM PCUI Calendar or CRM IC WebClient UI Calendar can be abused by an attacker, allowing them to modify displayed application content without authorization, and potentially obtain authentication information from other legitimate users. Cross site scripting security issues in CRM BSP applications CRM_CALENDAR and BSP_CAL_APP.
Solution
Implement the attached automatic correction instructions.
Reason and prerequisites
Pages and API interfaces within CRM Calendar do not sufficiently encode input and output parameters, resulting in a reflected cross-site scripting issue. A reflected cross-site scripting attack can be used to non-permanently deface or modify displayed content from a website.
Reflected cross-site scripting can be used to steal another user’s authentication information, such as data relating to their current session. An attacker who gains access to this data may use it to impersonate the user and access all information with the same rights as the target user. If an administrator is impersonated, the security of the application may be fully compromised.
Full note on SAP: SAP Support Launchpad note 1687962
Detailed exploitation and proof-of-concept material for this note is maintained in the RedRays Security Platform. For access, contact [email protected].
