Unauthorized modification in BSP application in IS-HER-CM, SAP security note 1673790

SAP security note 1673790, "Unauthorized modification in BSP application in IS-HER-CM", is a note. Below are the symptom, SAP recommended solution and the affected software components.

Description

Symptom

IS-HER-CM 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 SAP Security Note 1673790 or import the changes via the relevant support package.

Reason and prerequisites

BSP Page session.htm in PIQ_AUDIT within IS-HER-CM 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

• 1491236 – Unauthorized modification of displayed content SLCM BSP Appl
• 1661788 – BSP Application PIQ_AUDIT is not working with IE8

Affected components

• IS-PS-CA 472
• IS-PS-CA 600
• IS-PS-CA 602
• IS-PS-CA 603
• IS-PS-CA 604
• IS-PS-CA 605
• IS-PS-CA 606
• IS-PS-CA 616