Unauthorized modification in ITS-Service in KANBAN, SAP security note 1677766

SAP security note 1677766, "Unauthorized modification in ITS-Service in KANBAN", is a note. Below are the symptom, SAP recommended solution and the affected software components.

Description

Symptom

PKW1 can be abused by a malicious user, allowing them to modify displayed application content without authorization, and to potentially obtain authentication information from other legitimate users.

Solution

Please apply this note or import the changes via the relevant support package. The corrections of this note only have a protecting effect if the corrections of Note 1621946 and Note 1488500 are implemented.

Reason and prerequisites

ITS Service PKW1 in application component PP-KAB does not sufficiently encode OUTPUT parameters, resulting in a cross-site scripting issue.

Cross-site scripting can be used to steal another user's authentication information, such as data relating to their current session. A malicious user 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.

References

Affected components

• SAP_APPL Releases 500 to 606