{"id":40459,"date":"2025-05-19T13:36:21","date_gmt":"2025-05-19T13:36:21","guid":{"rendered":""},"modified":"2025-07-06T05:22:03","modified_gmt":"2025-07-06T11:22:03","slug":"cve-2023-32366-arbitrary-code-execution-vulnerability-in-macos-ios-and-ipados","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2023-32366-arbitrary-code-execution-vulnerability-in-macos-ios-and-ipados\/","title":{"rendered":"CVE-2023-32366: Arbitrary Code Execution Vulnerability in macOS, iOS, and iPadOS<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

CVE-2023-32366 is a severe cybersecurity vulnerability that has a significant impact on multiple versions of macOS, iOS, and iPadOS. This vulnerability has been identified as an out-of-bounds write issue that, when exploited, allows an attacker to execute arbitrary code on the affected system.
\nThis threat poses a serious risk to organizations and individual users alike, as it could potentially lead to system<\/a> compromise or data leakage, compromising the confidentiality, integrity, and availability of sensitive data. As such, understanding the nature of this vulnerability<\/a> and implementing the recommended mitigation measures is crucial for maintaining cybersecurity hygiene.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2023-32366
\nSeverity: High (7.8 CVSS Score)
\nAttack Vector: Local
\nPrivileges Required: Low
\nUser Interaction: Required
\nImpact: Arbitrary code execution<\/a>, potential system compromise, data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

macOS Big Sur | 11.7.5
\nmacOS Ventura<\/a> | 13.3
\niOS | 16.4
\niPadOS | 16.4
\niOS | 15.7.4
\niPadOS | 15.7.4
\nmacOS Monterey | 12.6.4<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The vulnerability stems from inadequate input validation<\/a> when processing a font file. An attacker can exploit this by crafting a font file that triggers an out-of-bounds write<\/a> operation. This means that the malicious code embedded in the file can write to areas of the memory that are not intended to be accessed, leading to arbitrary code execution<\/a>.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

Here is a conceptual example of how an attacker might craft a malicious font file to exploit the vulnerability<\/a>. Note that this is a simplified example and actual exploitation would require more sophistication:<\/p>\n

# Create a new malicious font file\n$ echo \"malicious_code_here\" > exploit.ttf\n# Use the font file in an application that uses the vulnerable font processing function\n$ application -font exploit.ttf<\/code><\/pre>\n
In this example, the “malicious_code_here” represents the payload that exploits the out-of-bounds write vulnerability to execute arbitrary<\/a> code on the victim’s system.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
The primary mitigation strategy for this vulnerability is to apply the vendor patch<\/a> as soon as it becomes available. This patch addresses the out-of-bounds write<\/a> issue by improving input validation during font file processing.
\nIn the interim, users can mitigate the risk by employing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) that can detect malicious payloads in font files and prevent their execution<\/a>. However, these are temporary measures and should not replace the need for applying the vendor’s patch.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview CVE-2023-32366 is a severe cybersecurity vulnerability that has a significant impact on multiple versions of macOS, iOS, and iPadOS. This vulnerability has been identified as an out-of-bounds write issue that, when exploited, allows an attacker to execute arbitrary code on the affected system. This threat poses a serious risk to organizations and individual users […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[77],"product":[],"attack_vector":[86,80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-40459","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-apple","attack_vector-buffer-overflow","attack_vector-rce"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t