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零:WEB

# 0x00 web237-openlitespeed

SSRF

<?php
highlight_file(__FILE__);
if (isset($_POST["curl_opt"]) && is_array($_POST["curl_opt"])){
    $ch = curl_init();
    foreach ($_POST["curl_opt"] as $key=>$value){
        curl_setopt($ch, $key, $value);
    }
    $result = curl_exec($ch);
    curl_close($ch);
    echo $result;
}
?>
  • ssrf

2022-09-01-09.00.26.png

  • 尝试写shell失败:

2022-09-01-09.00.19.png

# 0x01 web441-ezjava

路由绕过

payload http://localhost/;Evil 绕过 if (path.startsWith("/Evil"))

@ResponseBody
@RequestMapping({"/Evil"})
public String Evil(HttpServletRequest request, HttpServletResponse response) throws IOException, ClassNotFoundException {
        String path = request.getRequestURI();
        if (path.startsWith("/Evil"))
        return "nonono!!!";
        String base = request.getParameter("base");
        EInputStream in = new EInputStream(new ByteArrayInputStream(Base64.getDecoder().decode(base)));
        Object a = in.readObject();
        return "OK";
        }

base 参数如何?进一步查看writeUp: