Apple iOS up to 11.4.0 WebKit 7pk security

Summaryinfo

A vulnerability was found in Apple iOS up to 11.4.0. It has been classified as problematic. This issue affects some unknown processing of the component WebKit. Performing a manipulation results in 7pk security. This vulnerability was named CVE-2018-4278. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apple iOS up to 11.4.0 (Smartphone Operating System). It has been classified as problematic. This affects an unknown code block of the component WebKit. The manipulation with an unknown input leads to a 7pk security vulnerability. CWE is classifying the issue as CWE-254. This is going to have an impact on confidentiality.

The bug was discovered 07/09/2018. The weakness was presented 07/09/2018 as HT208938 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2018-4278 since 01/02/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/05/2023). It is expected to see the exploit prices for this product increasing in the near future.MITRE ATT&CK project uses the attack technique T1211 for this issue. The advisory points out:

Sound fetched through audio elements may be exfiltrated cross-origin. This issue was addressed with improved audio taint tracking.

The vulnerability scanner Nessus provides a plugin with the ID 111109 (macOS : Apple Safari < 11.1.2 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171580 (OpenSUSE Security Update for webkit2gtk3 (openSUSE-SU-2018:2781-1)).

Upgrading to version 11.4.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (111109). See VDB-120972, VDB-120960, VDB-120961 and VDB-120962 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Smartphone Operating System

Vendor

• Apple

Name

• iOS

Version

• 11.0
• 11.1
• 11.2
• 11.3
• 11.4.0

License

• commercial

Website

• Vendor: https://www.apple.com/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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