CVE intelligence and bounded remediation
CVE-2021-23214 — Postgresql Postgresql security vulnerability
When the server is configured to use trust authentication with a clientcert requirement or to use cert authentication, a man-in-the-middle attacker can inject arbitrary SQL queries when a connection is first established, despite the use of SSL certificate verification and encryption.
- Severity
- High
- CVSS
- 8.1 (3.1)
- Published
- 2022-03-04
- CISA KEV
- Not currently listed
- Ecosystem
- software/application
- Weaknesses
- CWE-89
Affected products
- postgresql / postgresql
- postgresql / postgresql / 14.0
- fedoraproject / fedora / 34
- fedoraproject / fedora / 35
- redhat / software_collections / 1.0
- redhat / enterprise_linux / 8.0
Showing 6 representative product identities from 12 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.
Matched remediation archetype
SQL and data-query injection
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Check exposure
- Trace request, message, file, and stored values into SQL, ORM query fragments, filters, sort expressions, and other data-query languages.
- Inventory database roles, reachable schemas, multi-tenant boundaries, and whether stacked or administrative operations are enabled.
- Check both direct queries and second-order use of previously stored values.
Remediate safely
- Use parameterized queries or safe query builders for all values; map identifiers and operators through explicit allowlists.
- Remove raw query concatenation and give the application account only the tables and operations it requires.
- Update affected data-access components and add regression tests for query structure preservation with inert edge-case inputs.
Authoritative sources
Complete CVE record and remediation plan
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