interceptor: Check lib prefix anyways in claiming grafts on arm64 #772
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This change is needed because since iOS 17, Xcode can load the `/private/preboot/Cryptexes/OS/usr/lib/libLogRedirect.dylib` library (there’s also a macOS counterpart: `/System/Cryptexes/OS/usr/lib/libLogRedirect.dylib`) which uses interposing for wrapping a bunch of commonly used (and commonly hooked) symbols. Since those libraries are not in the dyld cache, we were flagging them as non-system libraries, making Interceptor fail loudly (instead of silently) if no direct import grafts were found in the loaded binaries for those symbols. This change adds a check for the `/private/preboot` prefix, and now the prefix check is in OR with the dyld cache one instead of being mutually exclusive.
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Nice catch!! Thanks! 🙌 |
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This change is needed because since iOS 17, Xcode can load the
/private/preboot/Cryptexes/OS/usr/lib/libLogRedirect.dyliblibrary (there’s also a macOS counterpart:/System/Cryptexes/OS/usr/lib/libLogRedirect.dylib) which uses interposing for wrapping a bunch of commonly used (and commonly hooked) symbols.Since those libraries are not in the dyld cache, Frida was flagging them as non-system libraries, making Interceptor fail loudly (instead of silently) if no direct import grafts were found in the loaded binaries for those symbols.
This change adds a check for
/private/prebootprefix, and now the prefix check is in OR with the dyld cache one instead of being mutually exclusive.