Apple iOS up to 10.2 WebKit information disclosure

Summaryinfo

A vulnerability was found in Apple iOS up to 10.2. It has been declared as critical. This issue affects some unknown processing of the component WebKit. The manipulation results in information disclosure. This vulnerability was named CVE-2017-2493. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS up to 10.2 (Smartphone Operating System). It has been classified as critical. Affected is some unknown processing of the component WebKit. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. iCloud before 6.2 on Windows is affected. tvOS before 10.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to bypass the Same Origin Policy and obtain sensitive information via a crafted elements on a web site.

The bug was discovered 03/27/2018. The weakness was presented 04/03/2018 as HT207600 (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2017-2493 since 12/01/2016. 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 current price for an exploit might be approx. USD $0-$5k (estimation calculated on 01/20/2020). It is expected to see the exploit prices for this product increasing in the near future.The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $25k-$100k.

Upgrading to version 10.3 eliminates this vulnerability.

See VDB-98600, VDB-98595, VDB-98597 and VDB-98593 for similar entries. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Smartphone Operating System

Vendor

• Apple

Name

• iOS

Version

• 10.0
• 10.1
• 10.2

License

• commercial

Website

• Vendor: https://www.apple.com/

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Once again VulDB remains the best source for vulnerability data.

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