'전체 글'에 해당되는 글 589건

/*
Android SSL Re-pinning frida script v0.2 030417-pier$ adb push burpca-cert-der.crt /data/local/tmp/cert-der.crt
$ frida -U -f it.app.mobile -l frida-android-repinning.js --no-pausehttps://techblog.mediaservice.net/2017/07/universal-android-ssl-pinning-bypass-with-frida/

UPDATE 20191605: Fixed undeclared var. Thanks to @oleavr and @ehsanpc9999 !
*/setTimeout(function(){
Java.perform(function (){
console.log("");
console.log("[.] Cert Pinning Bypass/Re-Pinning");var CertificateFactory = Java.use("java.security.cert.CertificateFactory");
var FileInputStream = Java.use("java.io.FileInputStream");
var BufferedInputStream = Java.use("java.io.BufferedInputStream");
var X509Certificate = Java.use("java.security.cert.X509Certificate");
var KeyStore = Java.use("java.security.KeyStore");
var TrustManagerFactory = Java.use("javax.net.ssl.TrustManagerFactory");
var SSLContext = Java.use("javax.net.ssl.SSLContext");// Load CAs from an InputStream
console.log("[+] Loading our CA...")
var cf = CertificateFactory.getInstance("X.509");

try {
var fileInputStream = FileInputStream.$new("/data/local/tmp/cert-der.crt");
}
catch(err) {
console.log("[o] " + err);
}

var bufferedInputStream = BufferedInputStream.$new(fileInputStream);
var ca = cf.generateCertificate(bufferedInputStream);
bufferedInputStream.close();var certInfo = Java.cast(ca, X509Certificate);
console.log("[o] Our CA Info: " + certInfo.getSubjectDN());// Create a KeyStore containing our trusted CAs
console.log("[+] Creating a KeyStore for our CA...");
var keyStoreType = KeyStore.getDefaultType();
var keyStore = KeyStore.getInstance(keyStoreType);
keyStore.load(null, null);
keyStore.setCertificateEntry("ca", ca);

// Create a TrustManager that trusts the CAs in our KeyStore
console.log("[+] Creating a TrustManager that trusts the CA in our KeyStore...");
var tmfAlgorithm = TrustManagerFactory.getDefaultAlgorithm();
var tmf = TrustManagerFactory.getInstance(tmfAlgorithm);
tmf.init(keyStore);
console.log("[+] Our TrustManager is ready...");console.log("[+] Hijacking SSLContext methods now...")
console.log("[-] Waiting for the app to invoke SSLContext.init()...")SSLContext.init.overload("[Ljavax.net.ssl.KeyManager;", "[Ljavax.net.ssl.TrustManager;", "java.security.SecureRandom").implementation = function(a,b,c) {
console.log("[o] App invoked javax.net.ssl.SSLContext.init...");
SSLContext.init.overload("[Ljavax.net.ssl.KeyManager;", "[Ljavax.net.ssl.TrustManager;", "java.security.SecureRandom").call(this, a, tmf.getTrustManagers(), c);
console.log("[+] SSLContext initialized with our custom TrustManager!");
}
});
},0);