TMA-PGSQL-NO-TRUST-AUTH

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

CríticaNivel 1Automatizadapostgres

Descripción

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.

Cómo se verifica

Método de auditoría: Consulta SQL

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"

Salida esperada: 0

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

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

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: postgresdatabaseauthenticationpg_hba
Referencia: 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

Verificar este host

Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.

shell

tmaegis scan --target postgres