TMA-PGSQL-NO-TRUST-AUTH

Ensure pg_hba.conf does not use 'trust' or 'password' authentication

KritischStufe 1Automatisiertpostgres

Beschreibung

trust allows login without any credential and password sends the password in clear text. The CIS PostgreSQL 18 Benchmark covers pg_hba.conf only through the manual checks 5.3/5.4; this rule automates that part by reading pg_hba_file_rules (superuser). Runs psql as ${PGUSER:-postgres} against ${PGDATABASE:-postgres}; set PGHOST/PGPORT and use ~/.pgpass (not PGPASSWORD, see 1.6/1.7) when peer authentication is not available.

So wird geprüft

Prüfmethode: SQL-Abfrage

sql_query

out=$(psql -X -U "${PGUSER:-postgres}" -d "${PGDATABASE:-postgres}" -tAc "SELECT count(*) FROM pg_hba_file_rules WHERE auth_method IN ('trust','password')" 2>/dev/null) || exit 1; printf '%s\n' "$out"

Erwartete Ausgabe: 0

So wird behoben

Behebungsmethode: Anleitung oder Infrastruktur-Patch

Replace trust/password entries in pg_hba.conf with scram-sha-256 (or peer for local administrative sockets), then SELECT pg_reload_conf();

Eigenschaften

Betriebssysteme: Beliebig
Tags: postgresdatabaseauthenticationpg_hba
Referenz: CIS PostgreSQL 18 Benchmark v1.0.0 - 5.3 / 5.4 Ensure login via "local" UNIX Domain Socket / "host" TCP/IP Socket is configured correctly

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shell

tmaegis scan --target postgres