ATutor vulnerabilities

Directory Traversal exists in ATutor before 2.2.2 via the icon parameter to /mods/_core/courses/users/create_course.php. The attacker can read an arbitrary file by visiting get_course_icon.php?id= after the traversal attack.

CVE-2016-2539 in ATutor before version 2.2.2 has a CSRF vulnerability in install_modules.php that allows remote attackers to hijack user authentication for uploading arbitrary files and executing arbitrary PHP code via crafted zip files.

SQL injection vulnerability in include/lib/mysql_connect.inc.php in ATutor 2.2.1 allows remote attackers to execute arbitrary SQL commands via the searchFriends function to friends.inc.php.

ATutor is vulnerable to Reflected XSS via popup parameter in preview.php. An authenticated attacker can inject a double quote into the popup parameter, break out of the attribute value, and append a new event handler such as onload. The related preview_top.php file sanitises these parameters, but that does not prevent XSS in the parent frameset rendered by preview.php itself. Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.

ATutor is vulnerable to Reflected XSS in restore functionality. An attacker can provide a specially crafted URL that, when opened, results in arbitrary JavaScript execution in the victim's browser. Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.

ATutor is vulnerable to Stored Cross Site Scripting in registration functionality. An attacker can register a new account and enter a JavaScript payload in the phone field during registration. When any authenticated user visits the attacker's public profile, the profile template echoes the phone value without output encoding and the browser executes the payload leading to the theft of user's session cookie. Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.

ATutor is vulnerable to Insecure Direct Object Reference (IDOR) attack in profile picture related endpoints. Any authenticated user, including a student, can supply another user's member_id in a POST request to the profile album endpoint and permanently delete that user's profile picture, including those of instructors and administrators. Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.

ATutor is vulnerable to Server-Side request forgery in import functionalities. An authenticated administrator can make the server request arbitrary internal HTTP endpoints, cloud metadata services, or local files via file:// if the PHP environment permits URL wrappers. Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.

A path traversal vulnerability in ATutor's error log viewer allows an attacker with administrative privileges to access arbitrary files outside the intended logs directory. This can lead to unauthorized access to sensitive files and other resources accessible to the web server process. The product is no longer actively supported and the vulnerabilities have not been fixed; only version 2.2.4 was tested and confirmed as vulnerable.

ATutor is vulnerable to a Path Traversal vulnerability in ZIP extraction functionality. An attacker with instructor privileges can upload and extract a specially crafted ZIP archive, causing files to be written outside the intended extraction directory. This allows an attacker to place a server-executable .phtml file in the web root and achieve remote code execution with web server privileges on the underlying server. Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.

ATutor is vulnerable to Missing Authorization Check on Test and Question Import endpoints. A low-privileged authenticated user (e.g. a student) enrolled in a course can bypass authorization checks by sending requests directly to the backend import endpoints, allowing the unauthorized import of tests and questions within a course. The product is no longer actively supported and the vulnerabilities have not been fixed; only version 2.2.4 was tested and confirmed as vulnerable.

ATutor generates predictable email confirmation tokens due to the use of insufficiently random values in the account confirmation functionality. An attacker who knows or can predict these values can guess valid account activation tokens, allowing activation of an unconfirmed account without access to the victim's email inbox. The product is no longer actively supported and the vulnerabilities have not been fixed; only version 2.2.4 was tested and confirmed as vulnerable.

A path traversal vulnerability in ATutor allows an authenticated user to access files from other course directories when the AT_FORCE_GET_FILE option is enabled. This can lead to unauthorized file access and disclosure of filesystem structure. The product is no longer actively supported and the vulnerability has not been fixed.

ATutor is vulnerable to Cross-Site Request Forgery (CSRF) in profile update functionality. An attacker can craft a malicious website which, when visited by an authenticated victim, submits a forged request to the system. Due to the lack of proper CSRF token implementation, the forged request is processed successfully, allowing an attacker to modify profile fields of an existing user. The product is no longer actively supported and the vulnerabilities have not been fixed; only version 2.2.4 was tested and confirmed as vulnerable.

ATutor is vulnerable to authentication bypass. Although a token validation check is present in the auto-login functionality, the values required for token validation remain uninitialized in certain code paths. An unauthenticated attacker who can determine a user's identifier and registration timestamp can generate a valid token and authenticate as an existing user, including administrator, without knowing the password. The product is no longer actively supported and the vulnerabilities have not been fixed; only version 2.2.4 was tested and confirmed as vulnerable.

ATutor Gameme module allows users to upload files of any type and extension without restriction. Due to improper handling of file uploads, files are stored in a web-accessible location before their content is validated. An authenticated attacker who knows a valid course_id can upload a server-executable malicious script. The uploaded file can then be requested over HTTP, resulting in remote code execution as the web server process user. In most cases, course_id=0 can be used, as it commonly represents the global context. Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.