SAP Commerce (Backoffice) uses the deprecated X-FRAME-OPTIONS header to protect against clickjacking. While this protection remains effective now, it may not be the case in the future as browsers might discontinue support for this header in favor of the frame-ancestors CSP directive. Hence, clickjacking could become possible then, and lead to exposure and modification of sensitive information.
Weakness
The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain, which can lead to user confusion about which interface the user is interacting with.
Potential Mitigations
- The use of X-Frame-Options allows developers of web content to restrict the usage of their application within the form of overlays, frames, or iFrames. The developer can indicate from which domains can frame the content.
- The concept of X-Frame-Options is well documented, but implementation of this protection mechanism is in development to cover gaps. There is a need for allowing frames from multiple domains.
- A developer can use a “frame-breaker” script in each page that should not be framed. This is very helpful for legacy browsers that do not support X-Frame-Options security feature previously mentioned.
- It is also important to note that this tactic has been circumvented or bypassed. Improper usage of frames can persist in the web application through nested frames. The “frame-breaking” script does not intuitively account for multiple nested frames that can be presented to the user.
References