CVE-2025-6267: Zhilink ADP Platform SQLi Vulnerability

CVE-2025-6267 Overview

A SQL injection vulnerability has been identified in Zhilink (智互联(深圳)科技有限公司) ADP Application Developer Platform version 1.0.0. This vulnerability affects the /adpweb/a/base/barcodeDetail/ endpoint, where improper handling of the barcodeNo, barcode, and itemNo parameters allows attackers to inject malicious SQL queries. The vulnerability can be exploited remotely by authenticated users with low privileges, potentially enabling unauthorized access to database contents, data manipulation, and system compromise.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to read, modify, or delete sensitive database information, potentially compromising the integrity and confidentiality of applications built on the ADP platform.

Affected Products

• Zhilink ADP Application Developer Platform version 1.0.0

Discovery Timeline

• 2025-06-19 - CVE-2025-6267 published to NVD
• 2025-10-09 - Last updated in NVD database

Technical Details for CVE-2025-6267

Vulnerability Analysis

This SQL injection vulnerability (CWE-89) stems from insufficient input validation in the barcode detail processing functionality of the Zhilink ADP Application Developer Platform. The affected endpoint /adpweb/a/base/barcodeDetail/ fails to properly sanitize user-supplied input in the barcodeNo, barcode, and itemNo parameters before incorporating them into SQL queries. This allows attackers to craft malicious input that alters the intended query logic, potentially enabling them to extract sensitive data, modify database records, or escalate their access within the application.

The vulnerability is also classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), indicating that the root cause involves failure to properly encode or escape special characters that have significance in SQL query syntax.

Root Cause

The root cause of this vulnerability lies in the application's failure to implement proper input validation and parameterized queries for the barcode-related parameters. When user input containing SQL metacharacters (such as single quotes, semicolons, or SQL keywords) is passed to the barcodeNo, barcode, or itemNo parameters, the application directly concatenates this input into SQL statements without sanitization or the use of prepared statements. This classic injection vulnerability pattern allows attackers to break out of the intended query context and inject arbitrary SQL commands.

Attack Vector

The attack can be initiated remotely over the network by any authenticated user with low-level privileges. An attacker would craft HTTP requests to the vulnerable /adpweb/a/base/barcodeDetail/ endpoint with specially crafted values in the barcodeNo, barcode, or itemNo parameters. These malicious payloads would contain SQL injection syntax designed to manipulate the backend database query.

Typical attack scenarios include:

• Data Exfiltration: Using UNION-based or error-based injection techniques to extract database contents
• Authentication Bypass: Manipulating queries to bypass authorization checks
• Data Manipulation: Inserting, updating, or deleting database records
• Privilege Escalation: Potentially accessing administrative functions or other users' data

The vendor was contacted about this disclosure but did not respond. For additional technical details, refer to the VulDB advisory.

Detection Methods for CVE-2025-6267

Indicators of Compromise

• Unusual or malformed requests to /adpweb/a/base/barcodeDetail/ containing SQL syntax characters such as single quotes ('), double dashes (--), semicolons (;), or SQL keywords (UNION, SELECT, INSERT, DELETE)
• Database error messages appearing in HTTP responses that reveal SQL syntax or database structure information
• Unexpected database query patterns or increased query execution times in database logs
• Signs of data exfiltration or unauthorized data access in application audit logs

Detection Strategies

• Implement web application firewall (WAF) rules to detect and block common SQL injection patterns targeting the /adpweb/a/base/barcodeDetail/ endpoint
• Monitor application logs for requests containing SQL metacharacters in the barcodeNo, barcode, and itemNo parameters
• Deploy database activity monitoring to identify anomalous queries, particularly those with UNION statements or accessing sensitive system tables
• Use SentinelOne's Singularity platform to detect suspicious process behavior and network activity indicative of post-exploitation

Monitoring Recommendations

• Enable detailed logging for the ADP Application Developer Platform, particularly for the barcode detail functionality
• Configure alerts for multiple failed or unusual requests to the vulnerable endpoint from the same source IP
• Monitor database server logs for query errors, especially those indicating syntax violations that may suggest injection attempts
• Regularly review access logs for evidence of data enumeration or bulk data retrieval patterns

How to Mitigate CVE-2025-6267

Immediate Actions Required

• Restrict network access to the Zhilink ADP Application Developer Platform to trusted IP addresses only until a patch is available
• Implement input validation at the application level or via a web application firewall to filter SQL injection payloads
• Review and audit database access permissions to minimize the impact of potential SQL injection exploitation
• Consider taking the affected application offline if it processes sensitive data and no mitigations can be applied

Patch Information

No official patch information is currently available from the vendor. According to the vulnerability disclosure, the vendor (Zhilink/智互联(深圳)科技有限公司) was contacted but did not respond. Organizations using the ADP Application Developer Platform version 1.0.0 should monitor the vendor's official channels for security updates and apply patches as soon as they become available.

For more information, refer to the VulDB submission.

Workarounds

• Deploy a web application firewall (WAF) with rules specifically configured to block SQL injection attempts targeting the barcodeNo, barcode, and itemNo parameters
• Implement network segmentation to isolate the affected application from critical systems and sensitive data stores
• If source code access is available, implement parameterized queries or prepared statements for all database interactions in the barcode detail module
• Enforce strict input validation allowing only expected character sets (alphanumeric) for barcode-related parameters
• Consider disabling or restricting access to the /adpweb/a/base/barcodeDetail/ endpoint until an official fix is released

# Example WAF rule to block SQL injection attempts (ModSecurity syntax)
SecRule ARGS:barcodeNo|ARGS:barcode|ARGS:itemNo "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    log,\
    msg:'SQL Injection attempt detected in barcode parameters - CVE-2025-6267'"