{"id":26557,"date":"2025-04-18T18:07:57","date_gmt":"2025-04-18T18:07:57","guid":{"rendered":""},"modified":"2025-05-30T05:03:17","modified_gmt":"2025-05-30T11:03:17","slug":"cve-2023-42970-use-after-free-vulnerability-in-multiple-apple-platforms-may-lead-to-arbitrary-code-execution","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2023-42970-use-after-free-vulnerability-in-multiple-apple-platforms-may-lead-to-arbitrary-code-execution\/","title":{"rendered":"CVE-2023-42970: Use-After-Free Vulnerability in Multiple Apple Platforms May Lead to Arbitrary Code Execution<\/strong>"},"content":{"rendered":"

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

In this post, we’ll be discussing a significant vulnerability, CVE-2023-42970, which poses a considerable risk to various Apple platforms, including iOS, macOS, watchOS, and tvOS. This issue concerns a use-after-free flaw, a common type of memory corruption vulnerability, which could potentially lead to arbitrary code execution. The vulnerability is particularly critical<\/a> as it affects a wide range of Apple products and opens up the possibility of system compromise or data leakage.<\/p>\n

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

CVE ID: CVE-2023-42970
\nSeverity: High (8.8 CVSS Score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: Required
\nImpact: Arbitrary code execution<\/a>, potential system compromise, and data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

iOS | versions prior<\/a> to 17
\niPadOS | versions prior<\/a> to 17
\nmacOS | versions<\/a> prior to Sonoma 14
\nwatchOS | versions prior<\/a> to 10
\ntvOS | versions prior<\/a> to 17
\nSafari | versions prior<\/a> to 17<\/p>\n

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

The vulnerability is a use-after-free issue, a type of memory corruption<\/a> flaw that can lead to arbitrary code execution. It occurs when a piece of memory is used after it has been freed, causing the software to behave unpredictably. In this case, the problem arises during the processing of web content on the affected platforms. If a malicious actor creates specifically crafted web content, they can trigger this vulnerability, leading to arbitrary code execution<\/a>.<\/p>\n

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

While the specific exploit code for this vulnerability is not publicly available, the general idea is that an attacker might craft a malicious web page or an HTML email, which when processed by the vulnerable software, could lead to this vulnerability<\/a> being exploited. This is a simplified, conceptual example of how a malicious HTML payload might look:<\/p>\n

\n\n<script>\n\/\/ Malicious JavaScript code exploiting the use-after-free vulnerability\nvar obj = new VulnerableObject();\nobj.free();\nobj.use();  \/\/ Use after free!\n<\/script>\n<\/body>\n<\/html><\/code><\/pre>\n
In this example, the attacker creates an instance of the vulnerable object<\/a>, frees it, and then uses it. This is the fundamental principle of a use-after-free exploit<\/a>. The actual exploit would be much more complex and would contain code to take advantage of the freed memory space to execute arbitrary<\/a> code.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
The most reliable way to mitigate this vulnerability<\/a> is to apply the vendor patch. Apple has addressed this issue in iOS 17 and iPadOS 17, macOS Sonoma<\/a> 14, watchOS 10, tvOS 17, Safari 17. Users of these products are strongly advised to update their software to the latest<\/a> version.
\nIn addition to applying the patch, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can provide a temporary mitigation, effectively blocking attempts to exploit this vulnerability<\/a>. However, these measures should be viewed as a stopgap solution until the patch can be applied.
\nRemember, staying current with updates and patches is one of the most effective ways to maintain security in the evolving digital landscape<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview In this post, we’ll be discussing a significant vulnerability, CVE-2023-42970, which poses a considerable risk to various Apple platforms, including iOS, macOS, watchOS, and tvOS. This issue concerns a use-after-free flaw, a common type of memory corruption vulnerability, which could potentially lead to arbitrary code execution. The vulnerability is particularly critical as it affects […]<\/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":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-26557","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-apple","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