Researchers from cybersecurity firm NCC Group published technical details on two vulnerabilities, tracked as CVE-2023-21433 and CVE-2023-21434, in Samsung Galaxy Store that could be exploited to install applications or execute malicious JavaScript code.
The vulnerability CVE-2023-21433 is an improper access control that can allow local attackers to install apps from the Galaxy App Store.
“It was found that the Galaxy App Store has an exported activity which does not handle incoming intents in a safe manner. This allows other applications installed on the same Samsung device to automatically install any application available on the Galaxy App Store without the user’s knowledge.” reads the advisory published by NCC Group.
It should be noted that due to the changes made to Android 13, the experts pointed out that this vulnerability only impacts Samsung devices that are running Android 12 and below.
The second flaw, tracked as CVE-2023-21434, is an improper input validation issue that could allow a local attacker to execute JavaScript code by launching a web page.
“It was found that a webview within the Galaxy App Store contained a filter which limited which domains that webview could browse to. However, the filter was not properly configured, which would allow the webview to browse to an attacker-controlled domain,” NCC Group continues.
