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做搞基视频网站,软文推广,做网站亏本,简约的网站建设0x00漏洞描述： ѕрееdtеѕt iѕ а vеrу liɡhtԝеiɡｈt nеtԝоrk ѕрееd tеѕtinɡ tооl imрlеmеntеd in Jаvаѕсriрt. Thеrе iѕ а Crоѕѕ-ѕitе Sсriрtinɡ vulnеrаbilitу in librеѕроndеd ѕрееdtеѕt…

0x00漏洞描述：

ѕрееdtеѕt iѕ а vеrу liɡhtԝеiɡｈt nеtԝоrk ѕрееd tеѕtinɡ tооl imрlеmеntеd in Jаvаѕсriрt. Thеrе iѕ а Crоѕѕ-ѕitе Sсriрtinɡ vulnеrаbilitу in librеѕроndеd ѕрееdtеѕt 5.2.4 аnd еаrliеr vеrѕiоnѕ. Thе vulnеrаbilitу iѕ саuѕеd bу thе раrаmеtеr id оf thе filе rеѕultѕ/ѕtаtѕ.рhр thаt ԝill саuѕе Crоѕѕ-ѕitе Sсriрtinɡ.

0x01 分析：

先到Github把ѕрееdtеѕt的5.2.4版本的源代码下下来，然后直接看rеѕultѕ/ѕtаtѕ.рhр文件：

<?php
session_start();
error_reporting(0);require 'telemetry_settings.php';
require_once 'telemetry_db.php';header('Content-Type: text/html; charset=utf-8');
header('Cache-Control: no-store, no-cache, must-revalidate, max-age=0, s-maxage=0');
header('Cache-Control: post-check=0, pre-check=0', false);
header('Pragma: no-cache');
?>
<!DOCTYPE html>
<html><head><title>LibreSpeed - Stats</title><style type="text/css">html,body{margin:0;padding:0;border:none;width:100%; min-height:100%;}html{background-color: hsl(198,72%,35%);font-family: "Segoe UI","Roboto",sans-serif;}body{background-color:#FFFFFF;box-sizing:border-box;width:100%;max-width:70em;margin:4em auto;box-shadow:0 1em 6em #00000080;padding:1em 1em 4em 1em;border-radius:0.4em;}h1,h2,h3,h4,h5,h6{font-weight:300;margin-bottom: 0.1em;}h1{text-align:center;}table{margin:2em 0;width:100%;}table, tr, th, td {border: 1px solid #AAAAAA;}th {width: 6em;}td {word-break: break-all;}div {margin: 1em 0;}</style></head><body><h1>LibreSpeed - Stats</h1><?phpif (!isset($stats_password) || $stats_password === 'PASSWORD') {?>Please set $stats_password in telemetry_settings.php to enable access.<?php} elseif ($_SESSION['logged'] === true) {if ($_GET['op'] === 'logout') {$_SESSION['logged'] = false;?><script type="text/javascript">window.location=location.protocol+"//"+location.host+location.pathname;</script><?php} else {?><form action="stats.php" method="GET"><input type="hidden" name="op" value="logout" /><input type="submit" value="Logout" /></form><form action="stats.php" method="GET"><h3>Search test results</h3><input type="hidden" name="op" value="id" /><input type="text" name="id" id="id" placeholder="Test ID" value=""/><input type="submit" value="Find" /><input type="submit" onclick="document.getElementById('id').value=''" value="Show last 100 tests" /></form><?phpif ($_GET['op'] === 'id' && !empty($_GET['id'])) {$speedtest = getSpeedtestUserById($_GET['id']);$speedtests = [];if (false === $speedtest) {echo '<div>There was an error trying to fetch the speedtest result for ID "'.$_GET['id'].'".</div>';} elseif (null === $speedtest) {echo '<div>Could not find a speedtest result for ID "'.$_GET['id'].'".</div>';} else {$speedtests = [$speedtest];}} else {$speedtests = getLatestSpeedtestUsers();if (false === $speedtests) {echo '<div>There was an error trying to fetch latest speedtest results.</div>';} elseif (empty($speedtests)) {echo '<div>Could not find any speedtest results in database.</div>';}}foreach ($speedtests as $speedtest) {?><table><tr><th>Test ID</th><td><?= htmlspecialchars($speedtest['id_formatted'], ENT_HTML5, 'UTF-8') ?></td></tr><tr><th>Date and time</th><td><?= htmlspecialchars($speedtest['timestamp'], ENT_HTML5, 'UTF-8') ?></td></tr><tr><th>IP and ISP Info</th><td><?= htmlspecialchars($speedtest['ip'], ENT_HTML5, 'UTF-8') ?><br/><?= htmlspecialchars($speedtest['ispinfo'], ENT_HTML5, 'UTF-8') ?></td></tr><tr><th>User agent and locale</th><td><?= htmlspecialchars($speedtest['ua'], ENT_HTML5, 'UTF-8') ?><br/><?= htmlspecialchars($speedtest['lang'], ENT_HTML5, 'UTF-8') ?></td></tr><tr><th>Download speed</th><td><?= htmlspecialchars($speedtest['dl'], ENT_HTML5, 'UTF-8') ?></td></tr><tr><th>Upload speed</th><td><?= htmlspecialchars($speedtest['ul'], ENT_HTML5, 'UTF-8') ?></td></tr><tr><th>Ping</th><td><?= htmlspecialchars($speedtest['ping'], ENT_HTML5, 'UTF-8') ?></td></tr><tr><th>Jitter</th><td><?= htmlspecialchars($speedtest['jitter'], ENT_HTML5, 'UTF-8') ?></td></tr><tr><th>Log</th><td><?= htmlspecialchars($speedtest['log'], ENT_HTML5, 'UTF-8') ?></td></tr><tr><th>Extra info</th><td><?= htmlspecialchars($speedtest['extra'], ENT_HTML5, 'UTF-8') ?></td></tr></table><?php}}} elseif ($_GET['op'] === 'login' && $_POST['password'] === $stats_password) {$_SESSION['logged'] = true;?><script type="text/javascript">window.location=location.protocol+"//"+location.host+location.pathname;</script><?php} else {?><form action="stats.php?op=login" method="POST"><h3>Login</h3><input type="password" name="password" placeholder="Password" value=""/><input type="submit" value="Login" /></form><?php}?></body>
</html>

直接看第89行的漏洞点：

 <?phpif ($_GET['op'] === 'id' && !empty($_GET['id'])) {$speedtest = getSpeedtestUserById($_GET['id']);$speedtests = [];if (false === $speedtest) {echo '<div>There was an error trying to fetch the speedtest result for ID "'.$_GET['id'].'".</div>';} elseif (null === $speedtest) {echo '<div>Could not find a speedtest result for ID "'.$_GET['id'].'".</div>';} else {$speedtests = [$speedtest];}} else {$speedtests = getLatestSpeedtestUsers();if (false === $speedtests) {echo '<div>There was an error trying to fetch latest speedtest results.</div>';} elseif (empty($speedtests)) {echo '<div>Could not find any speedtest results in database.</div>';}}foreach ($speedtests as $speedtest) {?>

当接收参数op=id，参数id=空或者flase时，直接将$_GET[‘id’]拼接到HTML代码中，导致了一个反射型的XSS。

0x02 复现

直接docker pull下来官方镜像，把里面的内容换成5.2.4版本的代码,然后点击登录：
在这里插入图片描述
这里由于stats.php的代码里有一句：

<?phpif (!isset($stats_password) || $stats_password === 'PASSWORD') {?>Please set $stats_password in telemetry_settings.php to enable access.<?php} elseif ($_SESSION['logged'] === true) {if ($_GET['op'] === 'logout') {$_SESSION['logged'] = false;?><script type="text/javascript">window.location=location.protocol+"//"+location.host+location.pathname;</script><?php

因此，还要到telemetry_settings.php里去把$stats_password改掉。
登录进去之后输入payload:
在这里插入图片描述
利用成功：

0x03利用条件

1.知道stats.php的登录密码
2.目标给results文件夹配置了php执行的权限（实际上很多目标都没有给results文件夹php文件的解析权限）
3.反射型XSS，必须要与目标有交互
4.版本有极大限制，仅限于5.2.3和5.2.4版本，如5.2.2版本就不存在这个问题：

<?php$q=null;if($_GET["op"]=="id"&&!empty($_GET["id"])){$id=$_GET["id"];if($enable_id_obfuscation) $id=deobfuscateId($id);if($db_type=="mysql"){$q=$conn->prepare("select id,timestamp,ip,ispinfo,ua,lang,dl,ul,ping,jitter,log,extra from speedtest_users where id=?");$q->bind_param("i",$id);$q->execute();$q->store_result();$q->bind_result($id,$timestamp,$ip,$ispinfo,$ua,$lang,$dl,$ul,$ping,$jitter,$log,$extra);} else if($db_type=="sqlite"||$db_type=="postgresql"){$q=$conn->prepare("select id,timestamp,ip,ispinfo,ua,lang,dl,ul,ping,jitter,log,extra from speedtest_users where id=?");$q->execute(array($id));} else die();}else{if($db_type=="mysql"){$q=$conn->prepare("select id,timestamp,ip,ispinfo,ua,lang,dl,ul,ping,jitter,log,extra from speedtest_users order by timestamp desc limit 0,100");$q->execute();$q->store_result();$q->bind_result($id,$timestamp,$ip,$ispinfo,$ua,$lang,$dl,$ul,$ping,$jitter,$log,$extra);} else if($db_type=="sqlite"||$db_type=="postgresql"){$q=$conn->prepare("select id,timestamp,ip,ispinfo,ua,lang,dl,ul,ping,jitter,log,extra from speedtest_users order by timestamp desc limit 100");$q->execute();}else die();}while(true){$id=null; $timestamp=null; $ip=null; $ispinfo=null; $ua=null; $lang=null; $dl=null; $ul=null; $ping=null; $jitter=null; $log=null; $extra=null;if($db_type=="mysql"){if(!$q->fetch()) break;} else if($db_type=="sqlite"||$db_type=="postgresql"){if(!($row=$q->fetch())) break;$id=$row["id"];$timestamp=$row["timestamp"];$ip=$row["ip"];$ispinfo=$row["ispinfo"];$ua=$row["ua"];$lang=$row["lang"];$dl=$row["dl"];$ul=$row["ul"];$ping=$row["ping"];$jitter=$row["jitter"];$log=$row["log"];$extra=$row["extra"];}else die();?><table><tr><th>Test ID</th><td><?=htmlspecialchars(($enable_id_obfuscation?(obfuscateId($id)." (deobfuscated: ".$id.")"):$id), ENT_HTML5, 'UTF-8') ?></td></tr><tr><th>Date and time</th><td><?=htmlspecialchars($timestamp, ENT_HTML5, 'UTF-8') ?></td></tr><tr><th>IP and ISP Info</th><td><?=$ip ?><br/><?=htmlspecialchars($ispinfo, ENT_HTML5, 'UTF-8') ?></td></tr><tr><th>User agent and locale</th><td><?=$ua ?><br/><?=htmlspecialchars($lang, ENT_HTML5, 'UTF-8') ?></td></tr><tr><th>Download speed</th><td><?=htmlspecialchars($dl, ENT_HTML5, 'UTF-8') ?></td></tr><tr><th>Upload speed</th><td><?=htmlspecialchars($ul, ENT_HTML5, 'UTF-8') ?></td></tr><tr><th>Ping</th><td><?=htmlspecialchars($ping, ENT_HTML5, 'UTF-8') ?></td></tr><tr><th>Jitter</th><td><?=htmlspecialchars($jitter, ENT_HTML5, 'UTF-8') ?></td></tr><tr><th>Log</th><td><?=htmlspecialchars($log, ENT_HTML5, 'UTF-8') ?></td></tr><tr><th>Extra info</th><td><?=htmlspecialchars($extra, ENT_HTML5, 'UTF-8') ?></td></tr></table><?php}?>