Apple Products Require Patching After Vulnerabilities Discovered

Apple Products Require Patching After Vulnerabilities Discovered

A cybersecurity advisory was issued Tuesday, Jan. 22, 2019, regarding multiple vulnerabilities in Apple products. These vulnerabilities could allow for arbitrary code execution.

What It Is:
Multiple vulnerabilities have been discovered in Apple products, which could allow for remote code execution and a breach as a result.

Successfully exploiting the most severe of these vulnerabilities could allow for arbitrary code execution in the context of the affected application. Depending on the privileges associated with the application, an attacker could install programs; view, change, or delete data; or create new accounts with full user rights. Failed exploitation could result in a denial-of-service condition.

Multiple vulnerabilities have been discovered in iCloud, Safari, watchOS, tvOS, Mojave, High Sierra, Sierra, and iOS. The most severe of these vulnerabilities could allow for arbitrary code execution.

• iCloud is a cloud storage service.
• Safari is a web browser available for OS X.
• watchOS is the mobile operating system for the Apple Watch and is based on the iOS operating system.
• tvOS is an operating system for the fourth-generation Apple TV digital media player.
• Mojave is a desktop and server operating system for Macintosh computers.
• High Sierra is a desktop and server operating system for Macintosh computers.
• Sierra is a desktop and server operating system for Macintosh computers.
• iOS is a mobile operating system for mobile devices, including the iPhone, iPad, and iPod touch.

See the original Apple Security Update for iOS 12.1.3.
See the original Apple Security Update for macOS Mojave 10.14.3 and High Sierra.
See the original Apple Security Update for tvOS 12.1.2.
See the original Apple Security Update for watchOS 5.1.3.
See the original Apple Security Update for Safari 12.0.3.
See the original Apple Security Update for iCloud for Windows 7.10.

Threat Intelligence:
There are no reports of these vulnerabilities being exploited in the wild.

What It Means:
If your business or organization use the Apple products mentioned below, you will need to update them with the patches immediately after appropriate testing to prevent a possible security breach.

Systems Affected Include:
• iCloud for Windows versions prior to 7.10
• Safari versions prior to 12.0.3
• watchOS versions prior to 5.1.3
• tvOS versions prior to 12.1.2
• macOS Mojave versions prior to 10.14.3, Security Update 2019-001 High Sierra, Security Update 2019-001 Sierra
• iOS versions prior to 12.1.3

Risk:
Government:
• Large and medium government entities: High
• Small government entities: Medium
Businesses:
• Large and medium business entities: High
• Small business entities: Medium
Home users: Low

Technical Summary:
Multiple vulnerabilities have been discovered in iCloud, Safari, watchOS, tvOS, Mojave, High Sierra, Sierra, and iOS. The most severe of these vulnerabilities could allow for arbitrary code execution. Details of these vulnerabilities are as follows:

• A buffer overflow issue was addressed with improved memory handling (CVE-2019-6224).
• A buffer overflow was addressed with improved bounds checking (CVE-2019-6213).
• A cross-site scripting issue existed in Safari. This issue was addressed with improved URL validation (CVE-2019-6228).
• A denial of service issue was addressed with improved validation (CVE-2019-6219).
• A logic issue was addressed with improved validation (CVE-2019-6229).
• A memory consumption issue was addressed with improved memory handling (CVE-2018-4452).
• Multiple memory corruption issues were addressed with improved input validation (CVE-2019-6210, CVE-2019-6218).
• A memory corruption issue was addressed with improved lock state checking (CVE-2019-6205).
• Multiple memory corruption issues were addressed with improved memory handling (CVE-2019-6227, CVE-2019-6233, CVE-2019-6234, CVE-2019-6227).
• Multiple memory corruption issues were addressed with improved state management (CVE-2018-4467, CVE-2019-6211).
• Multiple memory corruption issues were addressed with improved validation (CVE-2019-6225, CVE-2019-6235).
• Multiple memory initialization issues were addressed with improved memory handling (CVE-2019-6208, CVE-2019-6230).
• Multiple type confusion issues were addressed with improved memory handling (CVE-2019-6214, CVE-2019-6215).
• An issue existed with autofill resuming after it was canceled. The issue was addressed with improved state management (CVE-2019-6206).
• An out-of-bounds read issue existed that led to the disclosure of memory. This was addressed with improved input validation (CVE-2019-6209).
• Multiple out-of-bounds read issues were addressed with improved bounds checking (CVE-2019-6202, CVE-2019-6221, CVE-2019-6231).
• An out-of-bounds read was addressed with improved input validation (CVE-2019-6200).
• Multiple memory corruption issues were addressed with improved memory handling (CVE-2019-6212, CVE-2019-6216, CVE-2019-6217, CVE-2019-6226).

What To Do:
We recommend the following actions be taken:

• Apply appropriate patches provided by Apple to vulnerable systems immediately after appropriate testing.
• Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.
• Remind users not to download, accept, or execute files from untrusted or unknown sources.
• Remind users not to visit untrusted websites or follow links provided by unknown or un-trusted sources.
• Apply the Principle of Least Privilege to all systems and services.

Negative Consequences of Lost or Stolen Data Include:
The loss or theft of proprietary data can have severe impacts, particularly if the compromise becomes public and sensitive information is exposed. Possible impacts include:

• Temporary or permanent loss of sensitive or proprietary information.
• Disruption to regular operations.
• Financial losses incurred to restore systems and files.
• Potential harm to an organization’s reputation.

Should your agency or business need assistance with the detection of vulnerabilities in Apple products or updates to include critical patches, Dox can help. Please contact Dox if there is anything we can do to assist in securing your agency, business, or organization.

Thank you for your time and stay safe online.