Database Security & Hardening
Live CVE tracking, security hardening, privilege models, audit logging, and post-breach response runbooks.
CVEs & Releases
CVSS scores, affected versions, and urgent operational patch remediation advisories.
Auditing & Compliance
Audit logs, data masking, and compliance frameworks for GDPR, SOC2, and PCI-DSS.
Hardening
CIS Benchmark configs, TLS/SSL encryption, port isolation, and bad-vs-good practices.
Privilege Model
Least privilege roles, Read-Only analyst scopes, and verified DDL/DML templates.
Post-Breach Response
Emergency triage procedure to terminate hijacked sessions, rotate secrets, and audit leakage.
Critical CVE Security Advisories
PostgreSQL 17.2 Autovacuum Memory Leak Security Patch
Resolved excessive memory consumption bug during parallel autovacuum workers.
PostgreSQL PL/Perl Environment Variable Manipulation Code Execution
Vulnerability in PostgreSQL PL/Perl allowing non-superusers to modify sensitive environment variables and execute arbitrary code.
MySQL Server Optimizer Denial of Service (DoS) Vulnerability
Allows low-privileged authenticated users with network access to cause server hangs or complete crash via crafted optimizer queries.
Auditing & Compliance Frameworks
Session, Privilege & DDL Audit Logging (pgaudit & Enterprise Audit)
Who accessed, modified, or deleted which table, from which IP and at what time? Track all DDL, ROLE, WRITE, and sensitive READ operations with pgaudit.
Dynamic & Static PII Data Masking (Anonymization & Tokenization)
Mask sensitive customer PII (credit cards, national IDs, emails, phone numbers) dynamically for lower-privileged roles and staging environments.
Hardening Practices
PostgreSQL pg_hba.conf Hardening & Mandatory SCRAM-SHA-256 + TLS
Deprecate legacy MD5 and insecure `trust` auth methods, enforcing SCRAM-SHA-256 encryption and mandatory TLS certificates.
# TEHLİKELİ: Tüm ağa şifresiz veya zayıf MD5 erişimi
host all all 0.0.0.0/0 trust
host all all 0.0.0.0/0 md5# GÜVENLİ: Sadece TLS (hostssl), tanımlı subnet ve SCRAM-SHA-256
hostssl app_db app_user 10.0.4.0/24 scram-sha-256
hostssl all dba_team 10.0.1.0/24 scram-sha-256 clientcert=verify-fullMySQL Attack Surface Reduction (local_infile=0 & bind-address)
Disable client-side local file reads and restrict listening socket to internal private VPC subnets.
[mysqld]
bind-address = 0.0.0.0
local_infile = 1[mysqld]
bind-address = 10.0.2.15
local_infile = 0
skip_show_database = 1
require_secure_transport = ONCompromised Credential Rotation Runbook
Emergency triage procedure to terminate hijacked sessions, rotate secrets, and audit data exfiltration.
Kill all active client connections for the compromised user.
SELECT pg_terminate_backend(pid) FROM pg_stat_activity WHERE usename='compromised_user';Rotate credentials with a secure vault hash and revoke login permissions.
ALTER ROLE compromised_user NOLOGIN PASSWORD 'new_vault_secret';Inspect audit trail to identify accessed tables and origin IPs.
grep 'AUDIT: SESSION' /var/log/postgresql/*.log | grep 'compromised_user'