Apple re-released Rapid Security Response to fix recently disclosed zero
Vulnerabilities mentionedAll →
| CVE | Vulnerability | CVSS | EPSS | Flags | Affected | Exposure | Published |
|---|---|---|---|---|---|---|---|
| CVE-2023-37450 | Arbitrary Code Execution in Apple WebKit (iOS, iPadOS, macOS, Safari, tvOS, watchOS) CVE-2023-37450 is a high-severity (CVSS 8.8) arbitrary code execution vulnerability in Apple's WebKit browser engine, affecting iOS, iPadOS, Safari, macOS Ventura, tvOS, watchOS, and WebKitGTK. It is triggered when an affected device processes maliciously crafted web content — for example, when a user is lured into visiting an attacker-controlled webpage (user interaction is required, hence the UI:R CVSS vector). Successful exploitation grants the attacker arbitrary code execution within the web-content/browser context, the typical entry point for full iPhone, iPad, or Mac compromise chains. Anyone running iPhone OS/iPadOS earlier than 16.6, Safari earlier than 16.5.2, macOS Ventura earlier than 13.5, tvOS earlier than 16.6, watchOS earlier than 9.6, or unpatched WebKitGTK builds is affected. Apple reports the issue may have been actively exploited before it was patched, CISA added it to the KEV catalog on 2023-07-13, and EPSS assigns an 18.9% probability (97th percentile) of exploitation over the next 30 days. Do: Upgrade immediately to iOS 16.6 / iPadOS 16.6, Safari 16.5.2, macOS Ventura 13.5, tvOS 16.6, and watchOS 9.6, or apply the latest available patch for older OS branches on devices that cannot take the 16.x/Ventura updates; this is a CISA KEV entry with a federal remediation requirement. Because exploitation occurs through normal web browsing, patching is the only reliable mitigation — avoid untrusted websites as an interim measure. WebKitGTK users should update to the latest patched WebKitGTK release and verify that dependent applications have been rebuilt against the fixed library. | 8.8 | 19% | KEV |
| mass≈2 billion active Apple devices (WebKit is the web engine for iOS/iPadOS, Safari, tvOS and watchOS); no public counts of exploited devices are known |
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Apple re-released its Rapid Security Response updates for iOS and macOS after fixing browsing issues on certain websites caused by the first RSR.
Apple has re-released its Rapid Security Response updates to address the CVE-2023-37450 flaw in iOS and macOS after fixing browsing issues on certain websites caused by the first RSR issued by the company.
On July 10, Apple released Rapid Security Response updates for iOS, iPadOS, macOS, and Safari web browser to address the zero-day flaw that has been actively exploited in the wild.
Tricking the victim into processing specially crafted web content may lead to arbitrary code execution.
The flaw resides in the WebKit and Apple addressed it by improving checks.
“Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.” reads the advisory published by Apple.
The vulnerability CVE-2023-37450 was reported to the company by an anonymous researcher.
The IT giant did not reveal details about the attacks in the wild exploiting this issue or the nature of the threat actors.
Apple initially addressed the issue with the release of iOS 16.5.1 (a), iPadOS 16.5.1 (a), macOS Ventura 13.4.1 (a), and Safari 16.5.2. However, the company pulled iOS 16.5.1 and macOS 13.4.1 Rapid Security Response Updates due to a Safari bug.
Shortly after the installation of the patch, users started complaining that they were getting errors when visiting some websites, including Facebook, Instagram, and Zoom.
Apple admitted the problems and provided instructions for removing the updates from the devices.
On June 12, Apple re-released the updates, macOS Ventura 13.4.1 (c), iOS 16.5.1 (c) and iPadOS 16.5.1 (c).
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