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https://github.com/jas502n/Burp_AES_Plugin

Burpsuite Plugin For AES Crack
https://github.com/jas502n/Burp_AES_Plugin

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Burpsuite Plugin For AES Crack

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# Burpsuite Plugin For AES Crack

## 0x00 mvn install to get jar

`git clone https://github.com/jas502n/Burp_AES_Plugin/`

`cd ~/github/Burp_AES_Plugin/AESDecode`

`vi src/main/java/burp/BurpExtender.java`

`mvn install`

```
[INFO] --- maven-install-plugin:2.4:install (default-install) @ AESCrack ---
[INFO] Installing /root/github/Burp_AES_Plugin/AESDecode/target/AESCrack-1.0-SNAPSHOT.jar to /root/.m2/repository/com/jas502n/AESCrack/1.0-SNAPSHOT/AESCrack-1.0-SNAPSHOT.jar
[INFO] Installing /root/github/Burp_AES_Plugin/AESDecode/pom.xml to /root/.m2/repository/com/jas502n/AESCrack/1.0-SNAPSHOT/AESCrack-1.0-SNAPSHOT.pom
[INFO] Installing /root/github/Burp_AES_Plugin/AESDecode/target/AESCrack-1.0-SNAPSHOT-jar-with-dependencies.jar to /root/.m2/repository/com/jas502n/AESCrack/1.0-SNAPSHOT/AESCrack-1.0-SNAPSHOT-jar-with-dependencies.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.627 s
[INFO] Finished at: 2020-06-18T00:17:09+08:00
[INFO] ------------------------------------------------------------------------
```

## 0x01 最近遇到挺多网站前端用的 aes 加密登录,就想弄一个 Burpsuite AES 加密爆破插件

![](./key.png)

## 0x02 查阅资料,造轮子

如何编写自己的Burp Suite插件
https://t0data.gitbooks.io/burpsuite/content/chapter16.html

开发BurpSuite扩展爆破某平台
https://gorgias.me/2017/03/29/%E5%BC%80%E5%8F%91BurpSuite%E6%89%A9%E5%B1%95%E7%88%86%E7%A0%B4%E6%9F%90%E5%B9%B3%E5%8F%B0/

Burpsuite API Javadoc
https://portswigger.net/burp/extender/api/

CoolCat 写的 AesDecode插件,支持菜单页面加密与解密,爆破
https://github.com/TheKingOfDuck/
https://blog.gzsec.org/archives/

c0ny1 的jsEncrypter
https://github.com/c0ny1/jsEncrypter

## 0x03 idea 新建 mvn 项目,pom.xml 中添加依赖

```



net.portswigger.burp.extender
burp-extender-api
1.7.22


```

```



org.apache.maven.plugins
maven-assembly-plugin


package

single





jar-with-dependencies





```
## 0x04 新建包名 burp, java 类 BurpExtender,实现 AES 加密方法
IBurpExtender 官方必须要implements

IIntruderPayloadProcessor 由于我们要用到Intruder的爆破功能即可,所以需要implements

```
public class BurpExtender implements IBurpExtender, IIntruderPayloadProcessor {
private static IExtensionHelpers helpers;
public final static String extensionName = "AESCrack"; // 插件名称
public final static String version = "1.0";
public final static String AES_IV = "1234567812345678"; // 设置 AES IV 值
public final static String AES_KEY = "key12345key67890"; // 设置 AES KEY 值
```

##### encryptAES (设置 AES iv 值)

```
public static String encryptAES(String paramString1, String paramString2)
throws InvalidKeyException, NoSuchAlgorithmException, NoSuchPaddingException, UnsupportedEncodingException, InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException {
SecretKeySpec key = new SecretKeySpec(paramString2.getBytes(), "AES");
IvParameterSpec iv = new IvParameterSpec("your-iv-value".getBytes()); //set iv
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
cipher.init(1, key, iv);
return helpers.base64Encode(cipher.doFinal(paramString1.getBytes()));
}

```

processPayload 方法 (设置 AES KEY)

```
public byte[] processPayload(byte[] currentPayload, byte[] originalPayload, byte[] baseValue) {
String dataParameter = helpers.bytesToString(currentPayload);
String AesEncodeStr = null;
try {
AesEncodeStr = encryptAES(dataParameter, "your-aes-key"); //set aes key
} catch (InvalidKeyException e) {
e.printStackTrace();
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (NoSuchPaddingException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (InvalidAlgorithmParameterException e) {
e.printStackTrace();
} catch (IllegalBlockSizeException e) {
e.printStackTrace();
} catch (BadPaddingException e) {
e.printStackTrace();
}
return helpers.stringToBytes(AesEncodeStr);
}
```

## 0x05 idea mvn 编译

Intellij-idea 如何编译maven工程
https://blog.csdn.net/u013044029/article/details/71681891

编译运行成功,在 target 目录,得到 aes.jar 文件

一个没有依赖(文件小) `AESCrack-1.0-SNAPSHOT.jar`
一个有依赖(文件大) `AESCrack-1.0-SNAPSHOT-jar-with-dependencies.jar`

Burpsuite 加载插件时,使用没有依赖的就行了 `AESCrack-1.0-SNAPSHOT.jar`

![](./target.png)

## 0x06 AES 爆破效果

![](success.png)