CVE-2018-2491 Cross-site scripting in SAP Fiori Client

High 7.8 Published 13 Nov 2018 Updated 5 Aug 2024

Attackers can execute malicious JavaScript in the log viewer via deep links when debug logging is enabled, requiring users to upgrade the mobile client.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2018-2491?

CVE-2018-2491 is a high-severity cross-site scripting vulnerability in SAP Fiori Client, published on 13 Nov 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

When opening a deep link URL in SAP Fiori Client with log level set to "Debug", the client application logs the URL to the log file. If this URL contains malicious JavaScript code it can eventually run inside the built-in log viewer of the application in case user opens the viewer and taps on the hyperlink in the viewer. SAP Fiori Client version 1.11.5 in Google Play store addresses these issues and users must update to that version.

Weakness: CWE-94

Which versions are affected by CVE-2018-2491?

It affects 1 product.

Products include Sap Fiori Client.

How do I fix CVE-2018-2491?

No fix has been published for CVE-2018-2491 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2018-2491 being exploited?

There is no known exploitation of CVE-2018-2491 in the wild and no public exploit code.

Sources

Also known as GHSA-543q-j4vp-rjfq.