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CVE-2017-13253 is an out-of-bounds write vulnerability in the CryptoPlugin::decrypt function in CryptoPlugin.cpp in Android versions 8.0 and 8.1. The vulnerability is caused by a missing bounds check, which allows an attacker to write data outside the intended buffer limits during decryption operations. Exploitation requires user interaction and can be performed by a local attacker without additional execution privileges.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository contains a proof-of-concept (PoC) exploit for CVE-2017-13253, a heap buffer overflow vulnerability in the ClearKey DRM plugin of the Android media framework. The exploit is implemented in a single C++ file ('icrypto_overflow.cpp'), which interacts with Android's Binder IPC system to obtain a handle to the 'media.drm' service, sets up a ClearKey DRM plugin, and crafts memory buffers to trigger a heap overflow when the 'decrypt' method is called. The exploit is designed to be built within the Android Open Source Project (AOSP) environment and run on vulnerable Android 8.0/8.1 devices. The README provides build instructions and describes expected results, including possible crash outputs and return values from the 'decrypt' method. The exploit does not provide a shell or code execution, but demonstrates the vulnerability by causing a crash or abnormal behavior in the DRM service. The main attack vector is local, requiring the ability to run code on the target device. Notable endpoints include the 'media.drm' Binder service and the use of '/dev/ashmem/MemoryHeapBase' for memory manipulation.
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