Vulnerabilities in Apple Products Allow Arbitrary Code Execution

Fortify Security Team
Sep 12, 2022

Multiple vulnerabilities have been discovered in Apple Products, the most severe of which could allow for arbitrary code execution.

  • Safari is a graphical web browser developed by Apple.
  • macOS Monterey is the 18th and current major release of macOS.
  • macOS Big Sur is the 17th release of macOS.
  • iOS is a mobile operating system for mobile devices, including the iPhone, iPad, and iPod touch.
  • iPadOS is the successor to iOS 12 and is a mobile operating system for iPads.

Successful exploitation of the most severe of these vulnerabilities could allow for arbitrary code execution in the context of the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

THREAT INTELLIGENCE: Apple reports CVE-2022-32917 and CVE-2022-32894 are being actively exploded in the wild.

SYSTEMS AFFECTED:

  • Safari versions prior to 16
  • iOS versions prior to 16 for iPhone 8 and later
  • iOS and iPadOS versions prior to 15.7 for iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)
  • macOS Big Sur versions prior to 11.7
  • macOS Monterey versions prior to 12.6

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 Apple Products, the most severe of which could allow for arbitrary code execution. Details of the most critical vulnerabilities are as follows:
TacticInitial Access (TA0001):
TechniqueDrive-by Compromise (T1189):

  • Processing maliciously crafted web content may lead to arbitrary code execution. (CVE-2022-32886, CVE-2022-32912)

TacticExecution (TA0002):
TechniqueExploitation for Client Execution (T1203):

  • An app may be able to execute arbitrary code with kernel privileges. (CVE-2022-32911, CVE-2022-32917, CVE-2022-32894)
  • An app may be able to disclose kernel memory. (CVE-2022-32864)

Details of lower-severity vulnerabilities are as follows:

  • A website may be able to track users through Safari web extensions. (CVE-2022-32868)
  • Visiting a website that frames malicious content may lead to UI spoofing. (CVE-2022-32891)
  • An app may be able to bypass Privacy preferences. (CVE-2022-32854)
  • An app may be able to read sensitive location information. (CVE-2022-32883)
  • A user may be able to elevate privileges. (CVE-2022-32908, CVE-2022-32900)
  • Visiting a malicious website may lead to address bar spoofing. (CVE-2022-32795)
  • A person with physical access to an iOS device may be able to access photos from the lock screen. (CVE-2022-32872)
  • An app may be able to bypass Privacy preferences. (CVE-2022-32902)
  • A user may be able to view sensitive user information. (CVE-2022-32896)

Successful exploitation of the most severe of these vulnerabilities could allow for arbitrary code execution in the context of the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

RECOMMENDATIONS:

We recommend the following actions be taken:

  • Apply the stable channel update provided by Apple to vulnerable systems immediately after appropriate testing. (M1051: Update Software)
    • Safeguard 7.1: Establish and Maintain a Vulnerability Management Process: Establish and maintain a documented vulnerability management process for enterprise assets. Review and update documentation annually, or when significant enterprise changes occur that could impact this Safeguard.
    • Safeguard 7.4: Perform Automated Application Patch Management: Perform application updates on enterprise assets through automated patch management on a monthly, or more frequent, basis.
  • Apply the Principle of Least Privilege to all systems and services. Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack. (M1026: Privileged Account Management)
    • Safeguard 4.7: Manage Default Accounts on Enterprise Assets and Software: Manage default accounts on enterprise assets and software, such as root, administrator, and other pre-configured vendor accounts. Example implementations can include: disabling default accounts or making them unusable.
    • Safeguard 5.4: Restrict Administrator Privileges to Dedicated Administrator Accounts: Restrict administrator privileges to dedicated administrator accounts on enterprise assets. Conduct general computing activities, such as internet browsing, email, and productivity suite use, from the user’s primary, non-privileged account.
  • Restrict use of certain websites, block downloads/attachments, block Javascript, restrict browser extensions, etc. (M1021: Restrict Web-Based Content)
    • Safeguard 9.2: Use DNS Filtering Services: Use DNS filtering services on all enterprise assets to block access to known malicious domains.
    • Safeguard 9.3: Maintain and Enforce Network-Based URL Filters: Enforce and update network-based URL filters to limit an enterprise asset from connecting to potentially malicious or unapproved websites. Example implementations include category-based filtering, reputation-based filtering, or through the use of block lists. Enforce filters for all enterprise assets.
  • Train users to be aware of access or manipulation attempts by an adversary to reduce the risk of successful spearphishing, social engineering, and other techniques that involve user interaction. (M1017: User Training)
    • Safeguard 14.1: Establish and Maintain a Security Awareness Program: Establish and maintain a security awareness program. The purpose of a security awareness program is to educate the enterprise’s workforce on how to interact with enterprise assets and data in a secure manner. Conduct training at hire and, at a minimum, annually. Review and update content annually, or when significant enterprise changes occur that could impact this Safeguard.
    • Safeguard 14.6: Train Workforce Members on Recognizing and Reporting Security Incidents: Train workforce members to be able to recognize a potential incident and be able to report such an incident.

REFERENCES:

Apple:
https://support.apple.com/en-us/HT201222
https://support.apple.com/kb/HT213442
https://support.apple.com/kb/HT213443
https://support.apple.com/kb/HT213444
https://support.apple.com/kb/HT213445
https://support.apple.com/kb/HT213446

CVE: 
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32795
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32854
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32864
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32868
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32872
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32883
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32886
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32891
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32894
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32896
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32900
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32902
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32908
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32911
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32912
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32917

Recent Posts

Multiple Vulnerabilities in Google Android OS

Multiple vulnerabilities have been discovered in Google Android OS, the most severe of which could allow for remote code execution. Android is an operating system developed by Google for mobile devices, including, but not limited to, smartphones, tablets, and watches....

iOS Could Allow For Arbitrary Code Execution

A vulnerability has been discovered in Apple Products which could allow for arbitrary code execution. iOS is a mobile operating system created and developed by Apple Inc. exclusively for its hardware. Successful exploitation could allow the attacker to execute...

Google Chrome Could Allow for Arbitrary Code Execution

Multiple vulnerabilities have been discovered in Google Chrome, the most severe of which could allow for arbitrary code execution. Google Chrome is a web browser used to access the internet. Successful exploitation of the most severe of these vulnerabilities could...

Bitbucket Server and Data Center Allows For Remote Code Execution

A Vulnerability has been discovered in Atlassian Bitbucket Server and Data Center which could allow for remote code execution. Bitbucket is a Git-based source code repository hosting service owned by Atlassian. Successful exploitation could allow the attacker to...