Samsung Internet Browser 6.2.01.12 IFRAME cross site scripting

Summaryinfo

A vulnerability described as critical has been identified in Samsung Internet Browser 6.2.01.12. This issue affects some unknown processing of the component IFRAME Handler. The manipulation results in cross site scripting. This vulnerability is known as CVE-2017-17859. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability classified as critical has been found in Samsung Internet Browser 6.2.01.12. Affected is an unknown code block of the component IFRAME Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Samsung Internet Browser 6.2.01.12 allows remote attackers to bypass the Same Origin Policy, and conduct UXSS attacks to obtain sensitive information, via vectors involving an IFRAME element inside XSLT data in one part of an MHTML file. Specifically, JavaScript code in another part of this MHTML file does not have a document.domain value corresponding to the domain that is hosting the MHTML file, but instead has a document.domain value corresponding to an arbitrary URL within the content of the MHTML file.

The bug was discovered 12/23/2017. The weakness was published 12/27/2017 (Website). The advisory is shared for download at poctestblog.blogspot.com. This vulnerability is traded as CVE-2017-17859 since 12/23/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

The vulnerability was handled as a non-public zero-day exploit for at least 4 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.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Samsung

Name

• Internet Browser

Version

• 6.2.01.12

License

• commercial

Website

• Vendor: https://www.samsung.com/

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Once again VulDB remains the best source for vulnerability data.

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