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CVE-2017-7047 is a memory corruption vulnerability in the libxpc component of Apple operating systems, including iOS before 10.3.3, macOS before 10.12.6, tvOS before 10.2.2, and watchOS before 3.2.3. The vulnerability can be triggered by a crafted application, allowing an attacker to execute arbitrary code in a privileged context or cause a denial of service. The root cause is improper memory handling within libxpc, which is responsible for interprocess communication.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository contains a full exploit chain for CVE-2017-7047 ("Triple Fetch"), a logic error in Apple's libxpc on iOS 10.0-10.3.2. The exploit targets the CoreAuthenticationd daemon via a crafted NSXPC message, leveraging a heap overflow to hijack an Objective-C object and execute a ROP chain. This results in obtaining a task port for launchd (pid 1), which grants root privileges and the ability to control the lowest system daemon. The exploit then patches AMFID to disable code signing enforcement, enabling arbitrary code execution and facilitating jailbreak functionality. Post-exploitation, the code can launch a debugserver (listening on 0.0.0.0:1234) for remote debugging, and can run additional payloads or binaries (such as Dropbear SSH server on 127.0.0.1:22). The repository is structured as an Xcode project with Objective-C and C source files, a custom XPC serialization library, and a "triple_fetch_sdk" directory for post-exploitation tools. The exploit is operational and includes both the exploit chain and post-exploitation utilities, making it suitable for jailbreaks, security research, and advanced debugging on vulnerable iOS devices.
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