CVE-2024-7943 Overview
CVE-2024-7943 is an unrestricted file upload vulnerability in itsourcecode Laravel Property Management System 1.0. The flaw resides in the upload function of PropertiesController.php. Attackers can manipulate the file argument to upload arbitrary files remotely. The exploit has been publicly disclosed, increasing the risk of opportunistic attacks against exposed instances. The weakness is tracked under [CWE-434: Unrestricted Upload of File with Dangerous Type]. Authenticated network access is required, but no user interaction is needed to trigger the flaw.
Critical Impact
A remote authenticated attacker can upload arbitrary files to the server, which may lead to web shell deployment, code execution, and full compromise of the hosted application.
Affected Products
- Adonesevangelista Laravel Property Management System 1.0
- Component: PropertiesController.phpupload function
- CPE: cpe:2.3:a:adonesevangelista:laravel_property_management_system:1.0:*:*:*:*:*:*:*
Discovery Timeline
- 2024-08-20 - CVE-2024-7943 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2024-7943
Vulnerability Analysis
The vulnerability affects the upload function within PropertiesController.php in the Laravel Property Management System. The controller accepts a file parameter from the client and writes it to the server without validating the file type, extension, or MIME. This design allows an attacker with low-privilege application access to upload executable content such as PHP scripts. Once written to a web-accessible directory, the uploaded file can be requested via HTTP to execute arbitrary code in the context of the web server user. The issue is classified as [CWE-434] and is exploitable over the network without user interaction.
Root Cause
The root cause is the absence of server-side validation on files submitted to the upload endpoint. The controller does not enforce an allowlist of permitted extensions, does not verify the file signature, and does not rename or sandbox the resulting artifact. Any authenticated user with access to the property management workflow can therefore substitute a benign file with an attacker-controlled payload.
Attack Vector
Exploitation requires network access to the application and a valid low-privilege session. The attacker submits a multipart HTTP POST request to the vulnerable upload handler, supplying a malicious file such as a PHP web shell in the file parameter. The server stores the file under its original name in a public directory. The attacker then issues a follow-up HTTP request to the stored file to trigger execution. Public disclosure of exploit details in the referenced GitHub advisory and VulDB entry 275135 lowers the barrier for opportunistic attackers.
No verified proof-of-concept code is republished here. See the external references for technical exploitation details.
Detection Methods for CVE-2024-7943
Indicators of Compromise
- Unexpected files with executable extensions such as .php, .phtml, .phar, or .jsp appearing in Laravel storage/ or public/ upload directories.
- HTTP POST requests targeting the PropertiesControllerupload route with multipart file payloads from low-privileged accounts.
- Subsequent HTTP GET requests to newly created files in upload directories, followed by outbound connections from the PHP-FPM or web server process.
Detection Strategies
- Monitor web server access logs for POST requests to the property upload endpoint followed by GET requests to the same directory shortly after.
- Deploy file integrity monitoring on the application's upload directories to alert on the creation of files with script extensions.
- Alert on web server processes spawning shell interpreters such as sh, bash, nc, or python, which indicates web shell execution.
Monitoring Recommendations
- Enable verbose Laravel request logging and forward logs to a central SIEM for correlation with process telemetry.
- Track EPSS movement for CVE-2024-7943, currently reported at 0.697% (49th percentile), to reprioritize as exploitation activity changes.
- Review authentication logs for anomalous account activity that precedes upload attempts, particularly from newly created or dormant accounts.
How to Mitigate CVE-2024-7943
Immediate Actions Required
- Restrict network access to the Laravel Property Management System until a fix is applied, allowing only trusted administrative addresses.
- Disable or rate-limit the upload route in PropertiesController.php if it is not required for production use.
- Audit application upload directories for unauthorized files and remove any web shells or unexpected executables.
Patch Information
No official vendor patch was referenced in the advisory sources at the time of publication. Users of itsourcecode Laravel Property Management System 1.0 should monitor the VulDB entry 275135 and the GitHub disclosure for updates. Until a vendor fix is released, apply the workarounds below and consider retiring the affected version.
Workarounds
- Implement server-side validation in the upload handler to enforce an allowlist of extensions and verify MIME type against file content.
- Store uploaded files outside the web root and serve them through a controller that streams content with a forced non-executable Content-Type.
- Configure the web server to deny execution of scripts within upload directories, for example by disabling PHP handlers under storage/uploads in the Nginx or Apache configuration.
- Rename uploaded files to server-generated identifiers to prevent attacker-controlled paths and predictable retrieval.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
