CVE-2024-0482: Jifeer Taokeyun SQLi Vulnerability

CVE-2024-0482 Overview

A critical SQL injection vulnerability has been discovered in Jifeer Taokeyun, affecting versions up to and including 1.0.5. The vulnerability exists in the index function within the file application/index/controller/app/Video.php, which is part of the HTTP POST Request Handler component. An attacker can exploit this vulnerability by manipulating the cid argument to inject malicious SQL queries. The attack can be initiated remotely without requiring authentication, making this vulnerability particularly dangerous for exposed instances.

Critical Impact

This SQL injection vulnerability allows unauthenticated remote attackers to compromise database confidentiality, integrity, and availability through malicious SQL queries injected via the cid parameter.

Affected Products

• Jifeer Taokeyun versions up to 1.0.5

Discovery Timeline

• 2024-01-13 - CVE-2024-0482 published to NVD
• 2024-11-21 - Last updated in NVD database

Technical Details for CVE-2024-0482

Vulnerability Analysis

This vulnerability is classified as CWE-89 (SQL Injection), a well-known and dangerous class of web application security flaws. The vulnerable code path exists in the HTTP POST Request Handler component, specifically in the index function of the Video.php controller file located at application/index/controller/app/. When processing incoming HTTP POST requests, the application fails to properly sanitize or parameterize user-supplied input in the cid argument before incorporating it into SQL queries.

The exploit has been publicly disclosed, increasing the risk of active exploitation. Attackers exploiting this vulnerability can potentially extract sensitive data from the database, modify or delete records, execute administrative operations, and in some cases achieve further system compromise through database-level exploits.

Root Cause

The root cause of this vulnerability is improper input validation and lack of parameterized queries in the Video.php controller. The cid parameter received from HTTP POST requests is directly concatenated or interpolated into SQL queries without proper sanitization, escaping, or the use of prepared statements. This allows attackers to break out of the intended query structure and inject arbitrary SQL commands.

Attack Vector

The attack is conducted remotely via network-accessible HTTP POST requests to the affected endpoint. An attacker sends a specially crafted HTTP POST request containing malicious SQL syntax in the cid parameter. The application processes this input and executes the attacker-controlled SQL code against the backend database.

The vulnerability does not require any authentication or user interaction to exploit, significantly lowering the barrier to attack. Attackers can leverage automated tools to identify and exploit this vulnerability at scale.

For technical details on the exploitation method, refer to the Zhaoj Blog Post and VulDB #250587 which contain additional context about this vulnerability.

Detection Methods for CVE-2024-0482

Indicators of Compromise

• Unusual or malformed HTTP POST requests to the /index/controller/app/Video.php endpoint containing SQL syntax in the cid parameter
• Database error messages in application logs indicating SQL syntax errors from unexpected query structures
• Anomalous database queries containing UNION, SELECT, OR 1=1, comment markers (--), or other SQL injection payloads
• Evidence of data exfiltration or unauthorized database modifications

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in the cid parameter
• Monitor application logs for requests containing SQL keywords, special characters, or encoding patterns commonly used in SQL injection attacks
• Deploy database activity monitoring to detect unusual query patterns or unauthorized data access
• Use intrusion detection systems (IDS) with signatures for SQL injection attack patterns targeting this application

Monitoring Recommendations

• Enable detailed logging for the HTTP POST Request Handler component and the Video.php controller
• Configure alerts for database query errors or unexpected query execution patterns
• Monitor for unusual network traffic patterns to database servers from web application hosts
• Review access logs regularly for requests containing encoded or obfuscated SQL injection payloads

How to Mitigate CVE-2024-0482

Immediate Actions Required

• Upgrade Taokeyun to a patched version if available from the vendor
• Implement input validation and parameterized queries for all user-supplied input, particularly the cid parameter
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules in front of the vulnerable application
• Restrict network access to the application to trusted sources only until patching is complete
• Review database permissions to ensure the application uses least-privilege database accounts

Patch Information

No official vendor advisory or patch information is currently available for this vulnerability. Organizations should monitor VulDB #250587 and the vendor's official channels for updates on patches or fixes. The exploit has been publicly disclosed, making remediation urgent.

Workarounds

• Implement a Web Application Firewall (WAF) rule to block requests containing SQL injection patterns in the cid parameter
• Apply input sanitization at the application level by filtering or escaping special characters in user input
• Restrict access to the vulnerable endpoint using IP-based access controls or authentication requirements
• Consider temporarily disabling the affected Video.php controller functionality if it is not business-critical

# Example WAF rule for blocking SQL injection in cid parameter (ModSecurity syntax)
SecRule ARGS:cid "@detectSQLi" \
    "id:100001,\
    phase:2,\
    deny,\
    status:403,\
    log,\
    msg:'SQL Injection attempt detected in cid parameter - CVE-2024-0482'"