Samsung KNOX 1.2.02.39 on Samsung Galaxy S9 Secure Folder CollectValuesOrEntriesImpl access control

Summaryinfo

A vulnerability was found in Samsung KNOX 1.2.02.39 on Samsung Galaxy S9. It has been classified as problematic. This affects the function CollectValuesOrEntriesImpl of the component Secure Folder Handler. The manipulation leads to access control. This vulnerability is documented as CVE-2019-6744. The attack needs to be performed locally. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Samsung KNOX 1.2.02.39 on Samsung Galaxy S9. This issue affects the function CollectValuesOrEntriesImpl of the component Secure Folder Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality. The summary by CVE is:

This vulnerability allows local attackers to disclose sensitive information on affected installations of Samsung Knox 1.2.02.39 on Samsung Galaxy S9 build G9600ZHS3ARL1 Secure Folder. An attacker must first obtain physical access to the device in order to exploit this vulnerability. The specific flaws exists within the the handling of the lock screen for Secure Folder. The issue results from the lack of proper validation that a user has correctly authenticated. An attacker can leverage this vulnerability to disclose the contents of the secure container. Was ZDI-CAN-7381.

The bug was discovered 04/17/2019. The weakness was released 02/10/2020. The identification of this vulnerability is CVE-2019-6744 since 01/24/2019. An attack has to be approached locally. The requirement for exploitation is a simple authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 299 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• Samsung

Name

• KNOX

Version

• 1.2.02.39

License

• commercial

Website

• Vendor: https://www.samsung.com/

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