Overview
This article details a critical security vulnerability, CVE-2024-44648, affecting PHPGurukul Small CRM version 3.0. This vulnerability is a SQL Injection flaw located within the `quote-details.php` file. Exploitation of this vulnerability could allow attackers to potentially access sensitive database information, modify data, or even compromise the entire system.
Technical Details
CVE-2024-44648 stems from insufficient sanitization of user-supplied input in the `quote-details.php` script. Specifically, the `id` and `adminremark` parameters are vulnerable. An attacker can inject malicious SQL code into these parameters, which will then be executed by the database server.
Consider the following vulnerable code snippet (illustrative example):
$id = $_GET['id'];
$query = "SELECT * FROM quotes WHERE id = " . $id;
// Vulnerable code - no input sanitization!
An attacker could craft a URL like this:
quote-details.php?id=1 OR 1=1 --
This crafted URL would likely bypass the intended query and return all records from the `quotes` table due to the injected `OR 1=1` condition. Similar techniques can be used to modify or delete data.
CVSS Analysis
- CVE ID: CVE-2024-44648
- Severity: MEDIUM
- CVSS Score: 6.5
- CVSS Vector (Example): CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N (Note: The actual CVSS vector might vary based on specific exploit details and attack context.)
A CVSS score of 6.5 indicates a MEDIUM severity. While not the most critical, a successful exploit can lead to partial information disclosure and data modification, requiring user interaction (UI:R) for successful exploitation.
Possible Impact
The exploitation of CVE-2024-44648 can lead to several negative consequences:
- Data Breach: Sensitive customer data, financial information, or other confidential details stored in the CRM database could be exposed.
- Data Manipulation: Attackers could modify or delete critical data, leading to inaccuracies and disruptions in business operations.
- Account Takeover: In some scenarios, the attacker might be able to gain access to administrator accounts by manipulating the SQL queries.
- Reputation Damage: A successful attack and subsequent data breach can severely damage the reputation of the organization using PHPGurukul Small CRM.
Mitigation or Patch Steps
To mitigate the risk posed by CVE-2024-44648, the following steps are highly recommended:
- Update PHPGurukul Small CRM: Check for a patched version of the CRM software from the vendor (PHPGurukul). Apply the update immediately if one is available. This is the primary and most effective mitigation strategy.
- Input Sanitization: If patching isn’t immediately possible, implement robust input sanitization and validation for the `id` and `adminremark` parameters in `quote-details.php`. Use prepared statements or parameterized queries to prevent SQL injection.
- Web Application Firewall (WAF): Deploy a Web Application Firewall (WAF) with rules designed to detect and block SQL injection attempts.
- Least Privilege Principle: Ensure that the database user account used by the CRM application has the least necessary privileges. This limits the potential damage in case of a successful SQL injection attack.
- Regular Security Audits: Conduct regular security audits and penetration testing to identify and address potential vulnerabilities in the CRM application and its infrastructure.
Example of Prepared Statement (PHP – PDO):
$pdo = new PDO("mysql:host=localhost;dbname=your_db", "username", "password");
$id = $_GET['id'];
$stmt = $pdo->prepare("SELECT * FROM quotes WHERE id = :id");
$stmt->bindParam(':id', $id, PDO::PARAM_INT); // Important: Use PDO::PARAM_INT if 'id' is an integer
$stmt->execute();
$results = $stmt->fetchAll(PDO::FETCH_ASSOC);
This example demonstrates how to use prepared statements to protect against SQL injection by treating the user input as data rather than executable code. Adapt this example to your specific environment and database system.
