2015-03-18: 细节已通知厂商并且等待厂商处理中 2015-03-18: 厂商已经确认,细节仅向厂商公开 2015-03-21: 细节向第三方安全合作伙伴开放 2015-05-12: 细节向核心白帽子及相关领域专家公开 2015-05-22: 细节向普通白帽子公开 2015-06-01: 细节向实习白帽子公开 2015-06-16: 细节向公众公开
rt
看到代码\install\install.php
<?phperror_reporting(E_ALL ^ E_NOTICE);header("content-type:text/html; charset=utf-8");require_once '../include/file.class.php';$step = $_GET["step"];$action = $_POST["action"];if($action == "save"){ $dbhost = $_POST["dbhost"]; $dbname = $_POST["dbname"]; $dbuser = $_POST["dbuser"]; $dbpass = $_POST["dbpass"]; $dbprefix = $_POST["dbprefix"]; $adminuser = $_POST["username"]; $adminpass = $_POST["userpass"]; if(empty($dbpass)) { $dbpass= ""; } $sitedir = str_replace("/install/install.php","",$_SERVER["PHP_SELF"]); $siteurl = "http://".$_SERVER["SERVER_NAME"].$sitedir.""; $link = @mysql_connect($dbhost, $dbuser, $dbpass) or die('不能连接到数据库,请确保用户名或密码正确 '); @mysql_query("SET NAMES UTF8;",$link); $db_selected = @mysql_select_db($dbname,$link) or die("指定数据库不存在");; $filedata = new File; $sqlcmd = $filedata->getfilesource("sql_db.sql"); $sqlarr = explode("#<--break-->",$sqlcmd); foreach($sqlarr as $sql) { @mysql_query(str_replace("yiqi_",$dbprefix,$sql),$link); } $setsql = "INSERT INTO yiqi_settings(sid,varname,description,value) values (2, 'siteurl', '网站地址', '$siteurl')"; @mysql_query(str_replace("yiqi_",$dbprefix,$setsql),$link); $adminsql = "INSERT INTO `yiqi_users` (`uid`, `username`, `password`, `gender`, `email`, `regular`, `adddate`, `status`) VALUES". "(1, '$adminuser', '".md5($adminpass)."', 1, 'admin@domain.com', '2|3|4|10|11|15|34|6|7|8|12|13|14|35|26|27|29|17|18|19|24|21|22|30|32|33|37|38|40|41|42|43|44', now(), 'ok');"; @mysql_query(str_replace("yiqi_",$dbprefix,$adminsql),$link); $productsql = "INSERT INTO `yiqi_product` (`pid`, `name`, `cid`, `thumb`, `seotitle`, `seokeywords`, `seodescription`, `filename`, `content`, `adddate`, `lasteditdate`, `templets`, `viewcount`, `status`) VALUES ". "(1, '开源企业建站程序', 3, '" . $siteurl . "/uploads/image/product-starter.gif', '开源企业建站程序', '-', '-', 'product-starter', '<p>易企CMS是专为国内企业定制开发的开源企业建站程序,详情请登录<a href=\"http://www.yiqicms.com\">http://www.yiqicms.com</a> 查询.</p>', now(), now(), 'product.tpl', 1, 'ok');"; @mysql_query(str_replace("yiqi_",$dbprefix,$productsql),$link); $productsql = "INSERT INTO `yiqi_navigate` (`navid`, `group`, `name`, `url`, `displayorder`, `status`) VALUES ". "(1, '顶部导航', '网站首页', '".$siteurl."/', 0, 'ok'),". "(2, '顶部导航', '公司介绍', '".$siteurl."/article.php?name=about', 1, 'ok'),". "(3, '顶部导航', '联系我们', '".$siteurl."/article.php?name=contact', 2, 'ok'),". "(4, '顶部导航', '在线留言', '".$siteurl."/comment.php', 3, 'ok'),". "(5, '次导航', '网站首页', '".$siteurl."/', 0, 'ok');"; @mysql_query(str_replace("yiqi_",$dbprefix,$productsql),$link); @mysql_close($link); @chmod('/include',0777); $configsource = "<?php \n\$cfg_db_host = \"$dbhost\";\n\n". "\$cfg_db_user = \"$dbuser\";\n\n". "\$cfg_db_pass = \"$dbpass\";\n\n". "\$cfg_db_name= \"$dbname\";\n\n". "\$cfg_db_prefix = \"$dbprefix\";\n". "\n?>"; if(file_exists("../include/config.inc.php")) { unlink("../include/config.inc.php"); } $filedata->writefile("../include/config.inc.php",$configsource); exit("<script>window.location='install.php?step=finish';</script>");}?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta content="text/html; charset=utf-8" http-equiv="Content-Type" /><title>安装向导</title><script type="text/javascript" src="../images/jq.js" ></script><link href="../images/style.css" rel="stylesheet" type="text/css" /><style type="text/css">body{ background:url('../images/login_bg.jpg') repeat-x;}.wrap{ margin:auto; width:500px; margin-top:100px; color:#fff;}.wrap h1{ margin:20px 0px; font-size:30px;}.label{ width:100px; float:left;}.input{ float:left;}.txt{ width:200px; height:20px; line-height:20px;}.btn{ padding:5px 20px;}.wrap ul li { clear:both; overflow:hidden; line-height:30px;}.wrap ul .title{ font-size:20px; font-weight:bold;}</style></head><body><form action="" method="post"><div class="wrap"><?php if($step == ""){?><h1>易企CMS安装向导</h1><ul><li>不会安装?点这里查看安装说明<a style="color:#ff6600;" href="http://www.yiqicms.com/article/install-guide.html" target="_blank">http://www.yiqicms.com/article/install-guide.html</a></li><li class="title">数据库信息</li><li><span class="label">数据库地址</span><span class="input"><input class="txt" type="text" name="dbhost" value="localhost"/></span></li><li><span class="label">数据库名称</span><span class="input"><input class="txt" type="text" name="dbname" value="yiqicms"/> 请确认数据库是否已经创建</span></li><li><span class="label">数据库表前缀</span><span class="input"><input class="txt" type="text" name="dbprefix" value="yiqi_"/></span></li><li><span class="label">数据库连接用户</span><span class="input"><input class="txt" type="text" name="dbuser" value="root"/></span></li><li><span class="label">数据库连接密码</span><span class="input"><input class="txt" type="text" name="dbpass" value=""/></span></li><li class="title">管理员信息</li><li><span class="label">管理员名称</span><span class="input"><input class="txt" type="text" name="username" value="admin" /></span></li><li><span class="label">管理员密码</span><span class="input"><input class="txt" type="text" name="userpass" value="yiqi" /></span></li><li><span class="label"> </span><span class="input"><input type="hidden" name="action" value="save"/><input class="btn" type="submit" value="安装" /></span></li></ul><?php }else if($step == "finish"){?><h1>安装完成</h1>恭喜,易企CMS已经成功安装! 为了更方便的使用易企CMS,请先阅读 <a href="http://www.yiqicms.com/category/changjianbangzhu/" style="color:#ff0000;" target="_blank">易企CMS常见帮助。</a><br/>您还可以:<a href="../" style="color:red;">返回前台</a> 或 <a style="color:red;" href="../admin/login.php">进入后台</a><br/><h3 style="color:red">重要:为了安全起见,请删除install目录,防止数据丢失!</h3><script type="text/javascript" src="http://www.yiqicms.com/update/installinit.php"></script><?phprename("install.php","install.php.bak");}?></div></form></body></html>
作用就是安装该cms,然后把install.php改为install.php.bak。由于apache解析问题,改文件还是会解析成php,然后就可以暴力getshell。数据库连接文件会写到\include\config.inc.php
<?php $cfg_db_host = "localhost";$cfg_db_user = "root";$cfg_db_pass = "";$cfg_db_name= "yiqicms";$cfg_db_prefix = "yiqicms";?>
由于是双引号可直接shell,无限制。
由于漏洞破坏太大,就不直接gethell互联网案例:
http://www.shaolinsiyuan.com/install/install.php.bakhttp://shpadi.com/install/install.php.bakhttp://www.laibanka.com/install/install.php.bakhttp://www.85456782.com/install/install.php.bakhttp://guijinshu027.com/install/install.php.bakhttp://solar68.com//install/install.php.bak........
可以看看乌云的案例
危害等级:中
漏洞Rank:8
确认时间:2015-03-18 13:21
感谢牛肉包子,我们会尽快处理。
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