Unauthorized modif. of displayed content in BC-SRV-GBT-ALM, SAP security note 1610668

SAP security note 1610668, "Unauthorized modif. of displayed content in BC-SRV-GBT-ALM", is a program error note released on 16.07.2013. Below are the symptom, SAP recommended solution and the affected software components.

Description

Symptom

BC-SRV-GBT-ALM 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. This security note has been updated. For more detailed information, see Security Note 1885280.

Solution

Implement the corrections using the Note Assistant or import the relevant Support Package.

Reason and prerequisites

The BSP pages in BC-SRV-GBT-ALM do not sufficiently encode 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. 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_BASIS 620 to 640
• SAP_BASIS 700 to 702
• SAP_BASIS 710 to 730
• SAP_BASIS 731