macOS Default Sandbox Debug
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In this page you can find how to create an app to launch arbitrary commands from inside the default macOS sandbox:
Compile the application:
#include <Foundation/Foundation.h>
int main(int argc, const char * argv[]) {
@autoreleasepool {
while (true) {
char input[512];
printf("Enter command to run (or 'exit' to quit): ");
if (fgets(input, sizeof(input), stdin) == NULL) {
break;
}
// Remove newline character
size_t len = strlen(input);
if (len > 0 && input[len - 1] == '\n') {
input[len - 1] = '\0';
}
if (strcmp(input, "exit") == 0) {
break;
}
system(input);
}
}
return 0;
}Compile it running: clang -framework Foundation -o SandboxedShellApp main.m
Build the
.appbundle
mkdir -p SandboxedShellApp.app/Contents/MacOS
mv SandboxedShellApp SandboxedShellApp.app/Contents/MacOS/
cat << EOF > SandboxedShellApp.app/Contents/Info.plist
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleIdentifier</key>
<string>com.example.SandboxedShellApp</string>
<key>CFBundleName</key>
<string>SandboxedShellApp</string>
<key>CFBundleVersion</key>
<string>1.0</string>
<key>CFBundleExecutable</key>
<string>SandboxedShellApp</string>
</dict>
</plist>
EOFDefine the entitlements
cat << EOF > entitlements.plist
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>com.apple.security.app-sandbox</key>
<true/>
</dict>
</plist>
EOFSign the app (you need to create a certificate in the keychain)
codesign --entitlements entitlements.plist -s "YourIdentity" SandboxedShellApp.app
./SandboxedShellApp.app/Contents/MacOS/SandboxedShellApp
# An d in case you need this in the future
codesign --remove-signature SandboxedShellApp.appLearn & practice AWS Hacking:HackTricks Training AWS Red Team Expert (ARTE)
Learn & practice GCP Hacking: HackTricks Training GCP Red Team Expert (GRTE)
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