ZDI-19-659: (Pwn2Own) Xiaomi Browser Captive Portal WebView Authorization Bypass Vulnerability
This vulnerability allows network adjacent attackers to execute arbitrary code on affected installations of Xiaomi Mi6. User interaction is required to exploit this vulnerability in that the target must connect to a malicious access point. The specific flaw exists within the handling of HTTP responses to the Captive Portal. A crafted HTML response can cause the Captive Portal to to open a browser to a specified location without user interaction. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process.
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-19-659?
The severity of ZDI-19-659 is critical due to its potential to allow arbitrary code execution.
Who is affected by the ZDI-19-659 vulnerability?
The ZDI-19-659 vulnerability affects installations of the Xiaomi Browser on the Xiaomi Mi6 device.
How do I fix ZDI-19-659?
To fix ZDI-19-659, ensure that your Xiaomi Browser is updated to the latest version provided by Xiaomi.
What type of attack does ZDI-19-659 enable?
ZDI-19-659 enables network adjacent attackers to execute arbitrary code by utilizing a malicious access point.
Is user interaction necessary to exploit ZDI-19-659?
Yes, user interaction is required to exploit ZDI-19-659 as the victim must connect to the malicious access point.