Hacking

Apple rolled out emergency updates to address 3 new actively exploited zero-day flaws

Apple released emergency security updates to address three new actively exploited zero-day vulnerabilities.

Apple released emergency security updates to address three new zero-day vulnerabilities (CVE-2023-41993, CVE-2023-41991, CVE-2023-41992) that have been exploited in attacks in the wild.

The three flaws were discovered by Bill Marczak of The Citizen Lab at The University of Toronto’s Munk School and Maddie Stone of Google’s Threat Analysis Group. The two research teams have already discovered multiple actively exploited zero-days in Apple products that were exploited in targeted attacks against high-profile individuals, such as opposition politicians, dissidents, and journalists.

CVE-2023-41993 is an arbitrary code execution issue that resides in the Webkit.

An attacker can trigger the flaw by tricking the victim into visiting specially crafted web content that may lead to arbitrary code execution. The IT giant addressed the flaw with improved checks.

The second zero-day flaw, tracked as CVE-2023-41991, resides in the Security framework. An attacker can exploit this vulnerability to bypass signature validation using malicious apps. The company fixed the vulnerability by fixing a certificate validation issue.

The third zero-day, tracked as CVE-2023-41992, resides in the Kernel Framework. A local attacker can trigger the flaws to elevate their privileges. Apple fixed the flaw with improved checks.

“Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.” reads the advisory published by the company.

The company fixed the three zero-day vulnerabilities with the release of macOS 12.7/13.6, iOS 16.7/17.0.1, iPadOS 16.7/17.0.1, and watchOS 9.6.3/10.0.1.

Fixes are available for iPhone XS and later, iPad Pro 12.9-inch 2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st generation and later, iPad Air 3rd generation and later, iPad 6th generation and later, iPad mini 5th generation and later

Apple has already patched 16 actively exploited zero-day vulnerabilities in 2023, below is the list of the flaws fixed by the company:

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Pierluigi Paganini

(SecurityAffairs – hacking, zero-day)

Pierluigi Paganini

Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer. Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US. Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines. Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”.

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