An issue was discovered in KaiOS 2.5 and 2.5.1. The...

Vulnerability Description

An issue was discovered in KaiOS 2.5 and 2.5.1. The pre-installed File Manager application is vulnerable to HTML and JavaScript injection attacks. An attacker can send a file via email to the victim that will inject HTML into the File Manager application (assuming the victim chooses to download the email attachment). At a bare minimum, this allows an attacker to take control over the File Manager application's UI (e.g., display a malicious prompt to the user asking them to re-enter credentials such as their KaiOS credentials to continue using the application) and also allows an attacker to abuse any of the privileges available to the mobile application.

References

• https://www.nccgroup.trust/us/our-research/
• https://research.nccgroup.com/2020/08/21/technical-advisory-multiple-html-injection-vulnerabilities-in-kaios-pre-installed-mobile-applications/