CVE-2024-6276: School Management System SQL Injection Flaw

CVE-2024-6276 is a critical SQL injection vulnerability in Lahirudanushka School Management System affecting the teacher.php file. Attackers can exploit this remotely to manipulate database queries. This article covers technical details, affected versions, security impact, and mitigation strategies.

CVE-2024-6276 Overview

CVE-2024-6276 is a SQL injection vulnerability in Lahirudanushka School Management System versions 1.0.0 and 1.0.1. The flaw resides in the teacher.php file within the Teacher Page component. Attackers can manipulate the update argument to inject arbitrary SQL statements into backend database queries. The vulnerability is exploitable remotely but requires high privileges on the target application. Public disclosure of the exploit technique has occurred, increasing the risk of opportunistic exploitation against unpatched deployments.

Critical Impact
Authenticated remote attackers can inject SQL commands through the update parameter in teacher.php, potentially compromising data confidentiality, integrity, and availability within the School Management System database.

Affected Products

Lahirudanushka School Management System 1.0.0
Lahirudanushka School Management System 1.0.1
Component: Teacher Page (teacher.php)

Discovery Timeline

2024-06-24 - CVE-2024-6276 published to NVD (VulDB identifier VDB-269489 assigned)
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-6276

Vulnerability Analysis

The vulnerability is classified as SQL Injection under CWE-89. It affects the teacher.php file, which processes teacher record updates in the School Management System. The update parameter is passed to a SQL query without proper sanitization or parameterization. An attacker with authenticated access can supply crafted input that alters the intended query logic.

Successful exploitation may allow the attacker to read, modify, or delete records in the underlying database. The attack is network-based and does not require user interaction. Because the exploit details have been published, defenders should treat unpatched instances as at elevated risk.

Root Cause

The root cause is improper neutralization of special elements used in an SQL command. The application concatenates the update request parameter directly into a SQL statement rather than using prepared statements or bound parameters. This allows attacker-supplied SQL syntax to be executed by the database engine.

Attack Vector

An authenticated attacker sends a crafted HTTP request to the Teacher Page endpoint, supplying malicious payload data in the update parameter. The payload breaks out of the intended query context and appends attacker-controlled SQL. Refer to the Notion SQL Injection Analysis and VulDB entry #269489 for technical details on the payload structure.

No verified proof-of-concept code is included in this article. Consult the linked references for exploitation specifics.

Detection Methods for CVE-2024-6276

Indicators of Compromise

HTTP requests to teacher.php containing SQL metacharacters (', --, ;, UNION, SELECT) in the update parameter.
Web server access logs showing unusually long or URL-encoded values submitted to the Teacher Page endpoint.
Database error messages returned in HTTP responses referencing syntax errors on update-related queries.

Detection Strategies

Deploy web application firewall (WAF) rules that inspect POST and GET parameters submitted to teacher.php for SQL injection signatures.
Enable database query logging and alert on anomalous queries originating from the School Management System service account.
Correlate authentication events with subsequent parameter tampering attempts against teacher management endpoints.

Monitoring Recommendations

Monitor for repeated failed queries, UNION-based enumeration attempts, and time-based blind injection patterns against the database.
Track outbound connections and unexpected schema reads from the database host serving the School Management System.
Review privileged user activity on the application to identify credential misuse consistent with the high-privilege requirement of this flaw.

How to Mitigate CVE-2024-6276

Immediate Actions Required

Restrict network access to the School Management System to trusted networks or VPN users only.
Revoke and rotate credentials for all authenticated application users, prioritizing accounts with update permissions on teacher records.
Apply least-privilege principles to the database account used by the application, removing DDL and administrative rights.

Patch Information

No official vendor patch has been published in the referenced advisories. Consult the VulDB submission #362877 and the vendor's project repository for updates. Until a fixed release is available, apply the workarounds below.

Workarounds

Place the application behind a WAF configured with SQL injection rulesets that inspect the update parameter on teacher.php.
Modify teacher.php to use parameterized queries or prepared statements for all database interactions involving user-supplied input.
Add server-side input validation to reject SQL metacharacters and enforce expected data types on the update parameter.
Consider disabling the Teacher Page component or removing the affected endpoint until a patched version is deployed.

bash

# Example WAF rule (ModSecurity) blocking SQLi patterns on teacher.php
SecRule REQUEST_URI "@contains /teacher.php" \
  "chain,id:1006276,phase:2,deny,status:403,log,msg:'CVE-2024-6276 SQLi attempt'"
  SecRule ARGS:update "@detectSQLi" "t:none,t:urlDecodeUni"