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Mallory
High

Sandbox escape in iOS and iPadOS file handling protocol

IdentifiersCVE-2023-32437CWE-22

CVE-2023-32437 is an Apple iOS/iPadOS vulnerability affecting iPhone 8 and later and multiple supported iPad models. According to the provided Apple advisory text, a flaw in the file handling protocol could allow a malicious app to break out of its sandbox. Apple states the issue was addressed in iOS 16.6 and iPadOS 16.6 through improvements to the file handling protocol. The available information indicates a sandbox escape condition tied to improper handling or validation in file-related operations, but the specific vulnerable component or function is not identified in the provided content.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows an application to escape the normal iOS/iPadOS app sandbox boundary. This can undermine the platform’s application isolation model and may permit access to files, resources, or system capabilities outside the app’s intended security container, depending on the reachable post-escape primitives. The advisory does not provide further technical detail on secondary impacts beyond sandbox breakout.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce exposure by limiting installation and execution of untrusted or unnecessary applications, especially sideloaded, enterprise-signed, or otherwise non-vetted apps. Enforce rapid OS update deployment, maintain App Store-only installation policies where possible, and use mobile device management controls to restrict risky app sources and device usage until the update is applied. No vendor-provided workaround beyond updating is described in the provided content.

Remediation

Patch, then assume compromise.

Upgrade affected devices to iOS 16.6 or iPadOS 16.6, where Apple states the issue is fixed by improvements to the file handling protocol.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
AppleIpadosoperating_system
AppleIphone Osoperating_system

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What this page doesn’t show

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Exposure mapping

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Threat actor evidence

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Associated malware

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Detection signatures

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Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity

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