[CoIT-Security] FW: MS-ISAC CYBERSECURITY ADVISORY - Multiple Vulnerabilities in Apple Products Could Allow for Remote Code Execution - PATCH: NOW - TLP: WHITE

Tue Sep 14 10:07:55 CDT 2021

Good Morning,

We are sharing this advisory on patching Apple products.

Thanks,

April Goode MBA SPP
Director of OneNet Strategic Planning and Communications
Oklahoma State Regents for Higher Education
405.225.9251

>>

MS-ISAC notification on Apple vulnerabilities that are currently being exploited in the wild.  Patch Apple prodcuts immeditately.  Read advisory below:

Subject: MS-ISAC CYBERSECURITY ADVISORY - Multiple Vulnerabilities in Apple Products Could Allow for Remote Code Execution - PATCH: NOW - TLP: WHITE

TLP: WHITE

MS-ISAC CYBERSECURITY ADVISORY

MS-ISAC ADVISORY NUMBER:

2021-111

DATE(S) ISSUED:

09/14/2021

SUBJECT:

Multiple Vulnerabilities in Apple Products Could Allow for Remote Code Execution

OVERVIEW:

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

  *   Safari is a graphical web browser developed by Apple, based on the WebKit engine.
  *   watchOS is the mobile operating system for Apple Watch and is based on the iOS operating system.
  *   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.
  *   macOS Big Sur is the 17th and current major release of macOS.
  *   macOS Catalina is the 16th major release of macOS.
  *   macOS Mojave is the 15th major release of macOS.

Successful exploitation of the most severe of these vulnerabilities could result in remote code execution in the context of the affected user.

THREAT INTELLIGENCE:

Apple has reported both CVE-2021-30858 and CVE-2021-30860 are being exploited in the wild.

SYSTEMS AFFECTED:

  *   watchOS versions before 7.6.2
  *   Safari versions before 14.1.2 (14611.3.10.1.7 on macOS Mojave and 15611.3.10.1.7 on macOS Catalina)
  *   iOS/iPadOS versions before 14.8
  *   macOS Big Sur versions before 11.6
  *   macOS Catalina without Security Update 2021-005

RISK:

Government:

  *   Large and medium government entities: Medium
  *   Small government entities: Medium

Businesses:

  *   Large and medium business entities: Medium
  *   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 remote code execution in the context of the affected user. Details of these vulnerabilities are as follows:

  *   An integer overflow when processing PDF files within the CoreGraphics component. (CVE-2021-30860)
  *   A use-after-free error when processing HTML content in WebKit. (CVE-2021-30858)

Successful exploitation of the most severe of these vulnerabilities could result in arbitrary code execution within the context of the application, an attacker gaining the same privileges as the logged-on user, or the bypassing of security restrictions. Depending on the permission associated with the application running the exploit, an attacker could then install programs; view, change, or delete data.

RECOMMENDATIONS:

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 nonprivileged user (one without administrative privileges) to diminish the effects of a successful attack.
  *   Remind users not to download, accept or execute files from untrusted and unknown sources.
  *   Remind users not to visit untrusted websites or follow links provided by untrusted or unknown sources.
  *   Evaluate read, write, and execute permissions on all newly installed software.
  *   Apply the Principle of Least Privilege to all systems and services.

REFERENCES:

Apple:

https://support.apple.com/en-us/HT201222
Apple security updates - Apple Support<https://support.apple.com/en-us/HT201222>
support.apple.com
This document lists security updates for Apple software.

https://support.apple.com/en-us/HT212804
About the security content of macOS Big Sur 11.6 - Apple Support<https://support.apple.com/en-us/HT212804>
support.apple.com
This document describes the security content of macOS Big Sur 11.6.

https://support.apple.com/en-us/HT212805
About the security content of Security Update 2021-005 Catalina - Apple Support<https://support.apple.com/en-us/HT212805>
support.apple.com
This document describes the security content of Security Update 2021-005 Catalina.

https://support.apple.com/en-us/HT212806
About the security content of watchOS 7.6.2 - Apple Support<https://support.apple.com/en-us/HT212806>
support.apple.com
This document describes the security content of watchOS 7.6.2.

https://support.apple.com/en-us/HT212807
About the security content of iOS 14.8 and iPadOS 14.8 - Apple Support<https://support.apple.com/en-us/HT212807>
support.apple.com
This document describes the security content of iOS 14.8 and iPadOS 14.8.

https://support.apple.com/en-us/HT212808
About the security content of Safari 14.1.2 - Apple Support<https://support.apple.com/en-us/HT212808>
support.apple.com
This document describes the security content of Safari 14.1.2.

CVE:

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30858

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30860

24×7 Security Operations Center

Multi-State Information Sharing and Analysis Center (MS-ISAC)

Elections Infrastructure Information Sharing and Analysis Center (EI-ISAC)

31 Tech Valley Drive

East Greenbush, NY 12061

SOC at cisecurity.org<mailto:SOC at cisecurity.org> - 1-866-787-4722

[cid:image023.jpg at 01D77E52.54D4F6E0]

[cid:image024.png at 01D77E52.54D4F6E0]<https://www.facebook.com/CenterforIntSec/>[cid:image025.png at 01D77E52.54D4F6E0]<https://twitter.com/CISecurity/> [cid:image026.png at 01D77E52.54D4F6E0] <https://www.youtube.com/user/TheCISecurity/>  [cid:image027.png at 01D77E52.54D4F6E0] <https://www.linkedin.com/company/the-center-for-internet-security/>

TLP: WHITE
https://www.cisa.gov/tlp
Sources may use TLP:WHITE when information carries minimal or no foreseeable risk of misuse, in accordance with applicable rules and procedures for public release. Subject to standard copyright rules, TLP:WHITE information may be distributed without restriction.

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