CVE-2024-2588: AMSS++ SQL Injection Vulnerability

CVE-2024-2588 Overview

CVE-2024-2588 is a SQL injection vulnerability in AMSS++ version 4.31. The flaw resides in the /amssplus/admin/index.php endpoint, specifically in the handling of the id parameter. A remote, unauthenticated attacker can submit a crafted SQL query through this parameter to extract arbitrary data from the backend database. The issue is tracked under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command). Spain's INCIBE-CERT published the coordinated advisory disclosing this and related issues in the product.

Critical Impact
Unauthenticated remote attackers can exfiltrate the entire contents of the AMSS++ database by injecting SQL through the id parameter of the administrative index.php script.

Affected Products

AMSS++ version 4.31
Component: amss++_project:amss++
Endpoint: /amssplus/admin/index.php

Discovery Timeline

2024-03-18 - CVE-2024-2588 published to NVD
2025-04-16 - Last updated in NVD database

Technical Details for CVE-2024-2588

Vulnerability Analysis

The vulnerability is a classic SQL injection in the administrative interface of AMSS++. The id parameter received by /amssplus/admin/index.php is concatenated into a SQL statement without proper parameterization or sanitization. An attacker controls part of the resulting query and can append clauses such as UNION SELECT to read data from arbitrary tables.

Because the vulnerable endpoint is reachable over the network and requires no authentication or user interaction, exploitation can be fully automated. The CVSS vector indicates confidentiality impact only, meaning attackers can read database contents but the issue is not scored as enabling integrity or availability damage. Database records that AMSS++ stores, including administrative accounts and content metadata, are exposed.

Root Cause

The root cause is improper neutralization of user-supplied input before it is included in a SQL statement [CWE-89]. The application does not use prepared statements or strict input validation for the id parameter. Attacker-controlled characters such as single quotes, comments, and UNION keywords are passed directly to the database engine.

Attack Vector

Exploitation requires only an HTTP request to the public administrative endpoint with a malicious id value. A typical payload appends boolean conditions or a UNION SELECT clause to enumerate table names from information_schema, then pivots to extract credentials or session data. No verified public proof-of-concept exploit is currently indexed for this CVE, and the EPSS probability remains low. Refer to the INCIBE Security Notice for the coordinated disclosure details.

Detection Methods for CVE-2024-2588

Indicators of Compromise

HTTP requests to /amssplus/admin/index.php containing SQL metacharacters in the id parameter, such as ', --, /*, or UNION.
Unusually long id values or values containing keywords like SELECT, FROM, information_schema, or SLEEP(.
Database error messages returned in HTTP responses from the AMSS++ admin path.
Spikes in outbound database query volume originating from the AMSS++ application server.

Detection Strategies

Deploy web application firewall (WAF) rules that inspect the id parameter on /amssplus/admin/ paths for SQL injection signatures.
Enable database query logging and alert on queries referencing information_schema or mysql.user from the AMSS++ database account.
Correlate web access logs with database audit logs to identify single requests producing many SELECT statements.

Monitoring Recommendations

Restrict access to /amssplus/admin/ to trusted source IP ranges and monitor for connection attempts from other addresses.
Forward web server and database logs to a centralized analytics platform and build detections for SQL injection patterns targeting AMSS++.
Review administrator account activity and database export operations for signs of bulk data retrieval.

How to Mitigate CVE-2024-2588

Immediate Actions Required

Place AMSS++ administrative endpoints behind authentication at the web server or reverse proxy layer until a vendor patch is applied.
Block or rate-limit requests to /amssplus/admin/index.php containing SQL metacharacters in the id parameter.
Rotate credentials stored in the AMSS++ database, including administrative accounts, if exposure is suspected.
Audit database logs for evidence of prior exploitation against the affected endpoint.

Patch Information

No vendor patch URL is listed in the NVD record at the time of writing. Administrators should consult the INCIBE Security Notice for vendor guidance and upgrade to any AMSS++ release later than 4.31 that addresses the SQL injection in /amssplus/admin/index.php.

Workarounds

Restrict network access to the AMSS++ administrative interface using IP allowlists or VPN-only access.
Deploy a WAF with SQL injection signatures in front of AMSS++ and enable strict parameter validation for id.
Apply least-privilege principles to the database user account configured for AMSS++ so it cannot read tables outside its own schema.

bash

# Example nginx restriction limiting the AMSS++ admin path to a trusted network
location /amssplus/admin/ {
    allow 10.0.0.0/24;
    deny  all;
    proxy_pass http://amssplus_backend;
}