Samsung Galaxy Apps URL Handling Privilege Escalation Vulnerability

Vulnerability Details

This vulnerability allows local attackers to execute arbitrary code on vulnerable installations of Samsung Galaxy Apps. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the handling of URLs. The issue lies in the lack of proper validation of user-supplied data, which can allow arbitrary JavaScript to execute. An attacker can leverage this vulnerability to install applications under the context of the current user.

Additional Details

Patched with ThemeStore v. 4.0.60.80109 and GalaxyApps v. 6.4.0.15

Disclosure Timeline

• 2017-11-05 - Vulnerability reported to vendor
• 2018-06-07 - Coordinated public release of advisory
• 2018-06-07 - Advisory Updated

Credit

Tencent Keen Security Lab

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