Description
aiven-db-migrate is an Aiven database migration tool. Prior to 1.0.7, there is a privilege escalation vulnerability that allows a user to elevate to superuser inside PostgreSQL databases during a migration from an untrusted source server. By exploiting a lack of search_path restriction, an attacker can override pg_catalog and execute untrusted operators as a superuser. This vulnerability is fixed in 1.0.7.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-25129
1. Vulnerability Assessment and Severity Evaluation
The vulnerability in question, identified as EUVD-2025-25129 (CVE-2025-55282), affects the Aiven database migration tool aiven-db-migrate prior to version 1.0.7. This vulnerability allows for privilege escalation within PostgreSQL databases during a migration process from an untrusted source server. The lack of search_path restriction enables an attacker to override the pg_catalog and execute untrusted operators with superuser privileges.
Severity Evaluation:
- CVSS Base Score: 9.1
- CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
The high base score of 9.1 indicates a critical vulnerability. The vector breakdown shows that the attack can be executed over the network (AV:N), requires low complexity (AC:L), and necessitates high privileges (PR:H). The impact on confidentiality, integrity, and availability is high (C:H/I:H/A:H), and the scope is changed (S:C), meaning the vulnerability affects components beyond its security scope.
2. Potential Attack Vectors and Exploitation Methods
Attack Vectors:
- Network-Based Attack: An attacker can exploit this vulnerability remotely over the network.
- Untrusted Source Server: The attacker needs to control or manipulate the source server from which the database migration is initiated.
Exploitation Methods:
- Override
pg_catalog: By manipulating thesearch_path, the attacker can override thepg_catalogschema. - Execute Untrusted Operators: Once the
pg_catalogis overridden, the attacker can execute untrusted operators with superuser privileges, leading to full control over the database.
3. Affected Systems and Software Versions
Affected Software:
aiven-db-migrateversions prior to 1.0.7
Affected Systems:
- Any system running the vulnerable versions of
aiven-db-migrateand performing database migrations from untrusted source servers.
4. Recommended Mitigation Strategies
- Upgrade to the Latest Version: Immediately upgrade to
aiven-db-migrateversion 1.0.7 or later, which includes the fix for this vulnerability. - Restrict Network Access: Limit network access to the database migration tool to trusted networks and systems.
- Validate Source Servers: Ensure that database migrations are only performed from trusted and verified source servers.
- Monitor and Audit: Implement continuous monitoring and auditing of database migration activities to detect any suspicious behavior.
- Least Privilege Principle: Apply the principle of least privilege to database users and roles, minimizing the risk of privilege escalation.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant risk to organizations within the European Union that rely on aiven-db-migrate for database migrations. Given the critical nature of the vulnerability, it could lead to data breaches, unauthorized access, and potential disruption of services. The European cybersecurity landscape must prioritize timely patching and adherence to best practices to mitigate such risks.
6. Technical Details for Security Professionals
Technical Overview:
- Vulnerability Type: Privilege Escalation
- Affected Component:
aiven-db-migrate - Root Cause: Lack of
search_pathrestriction during database migration - Exploitation: Overriding
pg_catalogand executing untrusted operators as a superuser
Mitigation Steps:
- Patch Management: Ensure that all instances of
aiven-db-migrateare updated to version 1.0.7 or later. - Configuration Hardening: Implement strict
search_pathrestrictions and other security configurations to prevent similar vulnerabilities. - Incident Response: Develop and test incident response plans to quickly identify and mitigate any potential exploitation attempts.
- Security Training: Educate database administrators and IT staff on the importance of secure database migration practices and the risks associated with untrusted source servers.
References:
By addressing this vulnerability promptly and implementing robust security measures, organizations can significantly reduce the risk of exploitation and ensure the integrity and security of their database migrations.