CVE-2024-8139: E-commerce Website SQL Injection Flaw

CVE-2024-8139 Overview

CVE-2024-8139 is a SQL injection vulnerability in itsourcecode E-Commerce Website 1.0, developed by angeljudesuarez. The flaw resides in the search_list.php file, where the user parameter is passed to a database query without proper sanitization. Remote attackers can manipulate this parameter to inject arbitrary SQL statements. The exploit has been publicly disclosed, increasing the likelihood of opportunistic attacks against exposed installations. The vulnerability is categorized under [CWE-89] (Improper Neutralization of Special Elements used in an SQL Command).

Critical Impact

Remote attackers with low privileges can inject arbitrary SQL into search_list.php through the user parameter, compromising database confidentiality, integrity, and availability.

Affected Products

• itsourcecode E-Commerce Website 1.0
• Vendor: angeljudesuarez
• Affected component: search_list.php

Discovery Timeline

• 2024-08-25 - CVE-2024-8139 published to NVD
• 2024-09-04 - Last updated in NVD database

Technical Details for CVE-2024-8139

Vulnerability Analysis

The vulnerability exists in the search_list.php endpoint of itsourcecode E-Commerce Website 1.0. The application accepts a user request parameter and concatenates it directly into a backend SQL query. Because input is neither validated nor parameterized, attackers can break out of the intended query context and append arbitrary SQL syntax.

Successful exploitation can expose customer records, order data, credentials stored in the database, and other sensitive application data. Attackers can also modify or delete records, depending on the privileges of the database account used by the application.

The attack requires network access and an authenticated session with low privileges. No user interaction is required, and the exploit has been disclosed publicly through the VulDB and GitHub issue tracker references.

Root Cause

The root cause is the absence of input sanitization and prepared statements when handling the user parameter in search_list.php. The application passes user-controlled input directly to the SQL interpreter, violating standard input validation requirements outlined in [CWE-89].

Attack Vector

An attacker sends a crafted HTTP request to search_list.php with a malicious payload in the user parameter. The injected SQL is executed by the backend database server. Because the attack vector is network-based and the exploit is public, automated scanners and opportunistic actors can target exposed instances. EPSS data indicates a low probability of active exploitation, but public PoC availability raises baseline risk.

The vulnerability is described in prose only as no verified exploit code is available. Refer to the VulDB #275719 CTI entry and the GitHub Issue Tracker for additional technical context.

Detection Methods for CVE-2024-8139

Indicators of Compromise

• HTTP requests to search_list.php containing SQL metacharacters such as ', ", --, UNION, SELECT, or OR 1=1 in the user parameter
• Database error messages returned to clients referencing syntax errors or column mismatches
• Unusual database query patterns originating from the web application service account
• Outbound data transfers from the database server following anomalous queries

Detection Strategies

• Deploy web application firewall (WAF) signatures targeting SQL injection patterns against search_list.php
• Enable database query logging and alert on queries containing tautologies, UNION-based payloads, or comment sequences
• Correlate web access logs with database audit logs to identify request-to-query injection chains
• Hunt for spikes in 500-level HTTP responses from search_list.php indicating query failures

Monitoring Recommendations

• Forward web server, application, and database logs to a centralized analytics platform for correlation
• Baseline normal query patterns from the application user and alert on deviations
• Monitor for new administrative accounts or privilege changes in the application database
• Track outbound traffic from the database server to detect potential exfiltration attempts

How to Mitigate CVE-2024-8139

Immediate Actions Required

• Restrict network access to the affected application using firewall rules or VPN-only access until a fix is applied
• Audit the search_list.php source code and replace string concatenation with parameterized queries or prepared statements
• Enforce least-privilege permissions on the database account used by the application
• Review database and web access logs for indicators of prior exploitation against the user parameter

Patch Information

No official vendor patch has been published. The vendor has not released advisory information at the time of publication. Operators of itsourcecode E-Commerce Website 1.0 should consider migrating away from the affected version or applying source-level fixes. Refer to the GitHub Issue Tracker for community discussion.

Workarounds

• Implement a WAF rule blocking SQL metacharacters in the user query parameter of search_list.php
• Apply server-side input validation to allow only expected character sets for the user parameter
• Disable or remove the search_list.php endpoint if it is not required for business operations
• Rotate database credentials and any user secrets that may have been exposed if exploitation is suspected

# Example ModSecurity rule to block SQL injection attempts against search_list.php
SecRule REQUEST_URI "@contains /search_list.php" \
    "chain,phase:2,deny,status:403,id:1008139,msg:'Possible SQLi against search_list.php (CVE-2024-8139)'"
    SecRule ARGS:user "@rx (?i)(union(\s|/\*.*\*/)+select|or\s+1=1|--|;|/\*|\*/|sleep\s*\(|benchmark\s*\()" \
        "t:none,t:urlDecodeUni"