Arbitrary Code Execution Vulnerability in macOS
CVE-2023-32435

8.8HIGH

Key Information:

Vendor: Apple
Status: Mac OS; iOS And iPad OS; Safari
Vendor: CVE Published:; 23 June 2023

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📈 Trended👾 Exploit Exists🦅 CISA Reported📰 News Worthy

What is CVE-2023-32435?

CVE-2023-32435 is a critical vulnerability found in macOS systems developed by Apple, which can result in arbitrary code execution. It occurs due to a memory corruption issue that arises during the processing of web content. This vulnerability can severely compromise the security of an organization's devices running affected versions of macOS, iOS, and iPadOS, potentially allowing attackers to gain unauthorized control over these systems. If left unaddressed, the vulnerability could lead to significant disruptions in operations, data breaches, and loss of sensitive information.

Technical Details

The vulnerability is characterized by its exploitation of memory corruption within the handling of web content. Specifically, it is linked to improper state management, which can be exploited by attackers to execute arbitrary code on the device. The issue has been addressed in the recent updates of macOS Ventura 13.3, Safari 16.4, and the various iterations of iOS and iPadOS. It is particularly critical for users who have not yet updated to the latest versions, as earlier versions are susceptible to active exploitation.

Potential Impact of CVE-2023-32435

Arbitrary Code Execution: Exploitation of this vulnerability can allow attackers to execute arbitrary code on the device running an affected operating system. This can enable unauthorized access and control over critical system functions and data.
Data Breaches: Successful exploitation could lead to the unauthorized extraction of sensitive data, including personal information, financial records, and proprietary organizational data, which can have far-reaching consequences for both individuals and businesses.
Operational Disruptions: The ability to execute arbitrary code remotely may lead to the installation of malware, which can disrupt normal operations, affect system performance, and necessitate extensive recovery efforts. This could result in significant downtime and financial losses for affected organizations.

CISA has reported CVE-2023-32435

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2023-32435 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply updates per vendor instructions.

Affected Version(s)

iOS and iPadOS < 15.7

iOS and iPadOS < 16.4

macOS < 13.3

News Articles

Dark Reading

CVE-2023-32434 CVE-2023-38606

‘Operation Triangulation’ Spyware Attackers Bypass iPhone Memory Protections

The Operation Triangulation attacks are abusing undocumented functions in Apple chips to circumvent hardware-based security measures.

SC Magazine

CVE-2023-38606 CVE-2023-41990

iPhone 0-click spyware campaign 'Triangulation' detailed

Researchers say the high-profile Operation Triangulation campaign exploited a now-patched zero-day flaw in the phone’s hardware-based memory protection system.