CVE-2024-7753: Clinic's Patient Management System RCE Flaw

CVE-2024-7753 Overview

CVE-2024-7753 affects SourceCodester Clinic's Patient Management System version 1.0, developed by oretnom23. The vulnerability resides in the /user_images/ directory and allows direct requests to resources that should require authentication or access controls. An unauthenticated remote attacker can issue HTTP requests directly to the path and retrieve content without authorization. The flaw is categorized under [CWE-425: Direct Request ('Forced Browsing')]. The exploit has been publicly disclosed, increasing the risk of opportunistic use against exposed instances.

Critical Impact
Remote unauthenticated attackers can perform forced browsing against the /user_images/ directory to enumerate and access files that should be access-controlled.

Affected Products

Oretnom23 Clinic's Patient Management System 1.0
Component path: /user_images/
Deployments exposing the application to untrusted networks

Discovery Timeline

2024-08-14 - CVE-2024-7753 published to NVD
2024-08-19 - Last updated in NVD database

Technical Details for CVE-2024-7753

Vulnerability Analysis

The vulnerability is a forced browsing weakness in the /user_images/ directory of the Clinic's Patient Management System. The application fails to enforce authentication or authorization checks on resources stored under this path. An attacker who knows or guesses object names can request files directly via standard HTTP methods. Because the attack requires no privileges, no user interaction, and is exploitable over the network, automation and scanning tools can identify and exploit vulnerable instances at scale.

The public disclosure includes details published in the GitHub Resource Repository and the VulDB entry #274372, lowering the barrier to exploitation.

Root Cause

The application does not validate that requests to /user_images/ originate from authenticated sessions or authorized users. Directory listing and predictable resource naming compound the issue, allowing attackers to enumerate stored files without bypassing any access control mechanism. The root cause maps to [CWE-425], where security relies on the obscurity of URLs rather than enforced authorization checks.

Attack Vector

Exploitation requires a network-reachable instance of the application. An attacker sends a direct HTTP GET request to the /user_images/ path or to specific filenames within that directory. No credentials, prior session, or social engineering is required. The vulnerability affects confidentiality of stored user image content; integrity and availability are not directly impacted according to the CVSS 4.0 vector. The EPSS score is 0.31% (54.54 percentile), indicating low but non-trivial exploitation likelihood.

No verified exploitation code is referenced beyond the public disclosure write-up. See the linked advisory for technical reproduction details.

Detection Methods for CVE-2024-7753

Indicators of Compromise

Unauthenticated HTTP GET requests to /user_images/ or sub-paths in web server access logs
Requests from a single source iterating across sequential or guessed filenames under /user_images/
Anomalous outbound transfers of image files from the application server
User-Agent strings associated with directory scanners (for example dirb, gobuster, ffuf)

Detection Strategies

Review web server access logs for repeated GET requests targeting /user_images/ without preceding authenticated session cookies
Deploy web application firewall rules that flag direct access to sensitive directories from unauthenticated sessions
Correlate request volume and response codes to identify enumeration patterns against the image directory

Monitoring Recommendations

Enable verbose logging on the web server hosting the Clinic's Patient Management System
Forward HTTP request logs to a centralized analytics platform for pattern detection
Alert on bursts of 200 OK responses to unauthenticated requests targeting /user_images/
Monitor file access timestamps on the user_images directory for unexpected read activity

How to Mitigate CVE-2024-7753

Immediate Actions Required

Restrict network exposure of the Clinic's Patient Management System to trusted networks or VPN-only access
Place the application behind a reverse proxy or web application firewall that enforces authentication before serving static directories
Disable directory listing on the web server hosting the application
Audit the contents of /user_images/ and remove sensitive files that should not be web-accessible

Patch Information

No vendor patch is referenced in the NVD entry or VulDB advisory for CVE-2024-7753. Organizations running Clinic's Patient Management System 1.0 should consult the VulDB entry #274372 for updated remediation guidance and monitor the vendor's distribution channels for fixed releases.

Workarounds

Add server-side authentication checks (for example .htaccess rules or middleware) requiring a valid session before serving any file under /user_images/
Rename the user_images directory and update application references to break predictable enumeration
Apply per-file access controls so requests are validated against the requesting user's identity
Configure the web server to deny direct file access and require all requests to pass through the application's authorization layer

bash

# Example Apache configuration to require authentication on /user_images/
<Location "/user_images/">
    AuthType Basic
    AuthName "Restricted Area"
    AuthUserFile /etc/apache2/.htpasswd
    Require valid-user
    Options -Indexes
</Location>