CVE-2025-1094 impacts PostgreSQL with SQL Injection

CVE-2025-1094 is a critical security vulnerability affecting the PostgreSQL interactive tool psql. This vulnerability presents significant risks to the integrity and security of database systems using PostgreSQL.

Nature of the Vulnerability

CVE-2025-1094 is an SQL Injection vulnerability that arises from improper neutralization of quoting syntax in PostgreSQL’s libpq functions, such as PQescapeLiteral(), PQescapeIdentifier(), PQescapeString(), and PQescapeStringConn(). This flaw allows attackers to inject malicious data into some of the REST API endpoints’ query parameters. When the PostgreSQL interactive tool reads untrusted input, it can lead to unauthorized access, data manipulation, and potentially severe security breaches.

Technical Details

Exploitation Method

Exploiting CVE-2025-1094 involves the following steps:

1. Crafting Malicious SQL Queries: The attacker creates specially crafted SQL queries designed to exploit the input validation flaw in the PostgreSQL interactive tool.
2. Injecting Malicious Data: The attacker injects the crafted SQL queries into the query parameters of the affected PostgreSQL tool.
3. Executing SQL Code: The malicious SQL code is executed within the database, allowing the attacker to manipulate or access sensitive data.

Example of Exploitation

An example of an SQL injection attack might involve an attacker submitting a request that includes a query parameter like id=1; DROP TABLE users; --. If the application does not properly validate this input, it could result in the execution of the SQL command to drop the users table.

Impact

Potential Risks

The successful exploitation of this vulnerability can lead to several severe consequences, including:

• Unauthorized Access: Attackers can gain unauthorized access to sensitive data stored in the database, such as customer information, transaction records, and financial details.
• Data Manipulation: Attackers can alter, delete, or insert data within the database, leading to data integrity issues and potentially disrupting normal operations.
• Further Attacks: The information obtained through SQL injection can be used to launch additional attacks, such as privilege escalation, remote code execution, and lateral movement within the network.

CVSS Score and Metrics

The Common Vulnerability Scoring System (CVSS) provides a standardized way to rate the severity of vulnerabilities. For CVE-2025-1094, the CVSS scores are as follows:

• Base Score: 9.2 (Critical)
• Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
• Attack Vector (AV): Network – The vulnerability can be exploited remotely over a network.
• Attack Complexity (AC): Low – The attack does not require complex conditions to be met.
• Privileges Required (PR): Low – The attacker needs some level of authentication but no significant privileges.
• User Interaction (UI): None – Exploitation does not require any user interaction.
• Scope (S): Unchanged – Exploitation affects only the vulnerable component.
• Confidentiality (C): High – Exploitation results in significant loss of confidentiality.
• Integrity (I): High – Exploitation results in significant impact on integrity.
• Availability (A): High – Exploitation results in significant impact on availability.

Mitigation Measures

To protect against the exploitation of CVE-2025-1094, organizations should implement the following mitigation measures:

1. Apply Security Patches

• Update Software: Upgrade to PostgreSQL version 17.3, 16.7, 15.11, 14.16, or 13.19, which includes patches for this vulnerability. Regularly check for updates and apply them promptly to minimize exposure to known vulnerabilities.

2. Implement Input Validation

• Sanitize Inputs: Ensure that all user inputs are properly validated and sanitized to prevent SQL injection attacks. Use input validation techniques such as whitelisting allowed characters and patterns.
• Use Prepared Statements: Utilize prepared statements and parameterized queries in the application code to ensure that user inputs are treated as data rather than executable SQL code.

3. Enhance Monitoring

• Continuous Monitoring: Implement continuous monitoring of database activity and network traffic to detect and respond to any signs of SQL injection attempts or suspicious behavior. Use intrusion detection systems (IDS) and database activity monitoring (DAM) solutions to identify potential threats.
• Audit Logs: Regularly review audit logs to detect any unauthorized access or data manipulation activities.

4. Educate Developers

• Security Training: Provide developers with training on secure coding practices, including how to prevent SQL injection vulnerabilities. Promote awareness of common attack vectors and the importance of input validation and prepared statements.

Final Thoughts

CVE-2025-1094 is a critical vulnerability that requires immediate attention and remediation. By applying the recommended updates, implementing robust input validation, and following best security practices, organizations can mitigate the risks associated with this vulnerability and protect their systems from potential exploitation.