Files
vpd-permission-poc/database/adb/08_tests_user_my.sql

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SQL

-- ============================================================
-- 08_tests_user_my.sql
-- Run as VPDUSER_MY (group MY_ONLY).
--
-- Expected:
-- - regions_pg = NULL -> policy returns '1=0' -> 0 rows from PG view
-- - regions_my = '*' -> policy returns NULL -> ALL rows from MySQL view
-- - email/full_name on MySQL view are unmasked ('*' bypasses redaction)
-- - all five bypass attempts fail (this is the full bypass-attempt suite;
-- the other three user tests rerun the most relevant subset only)
-- ============================================================
SET FEEDBACK ON
SET LINESIZE 200
SET PAGESIZE 100
PROMPT
PROMPT === Who am I, and what context did the LOGON trigger load? ===
SELECT USER AS session_user,
SYS_CONTEXT('VPD_CTX','USER_ID') AS app_user_id,
SYS_CONTEXT('VPD_CTX','V_CUSTOMERS_PG') AS regions_pg,
SYS_CONTEXT('VPD_CTX','V_CUSTOMERS_MY') AS regions_my
FROM dual;
PROMPT
PROMPT === Row counts (expect: PG=0, MY=17) ===
SELECT 'V_CUSTOMERS_PG' AS view_name, COUNT(*) AS rows_visible FROM admin.v_customers_pg
UNION ALL
SELECT 'V_CUSTOMERS_MY', COUNT(*) FROM admin.v_customers_my;
PROMPT
PROMPT === MySQL view sample (expect: ALL regions, UNMASKED email/full_name) ===
COLUMN customer_id FORMAT 9999
COLUMN full_name FORMAT A20
COLUMN email FORMAT A30
COLUMN region FORMAT A8
SELECT customer_id, full_name, email, region
FROM admin.v_customers_my
ORDER BY customer_id
FETCH FIRST 5 ROWS ONLY;
PROMPT
PROMPT === PG view sample (expect: NO ROWS fail closed) ===
SELECT customer_id, full_name, email, region
FROM admin.v_customers_pg
ORDER BY customer_id;
PROMPT
PROMPT === BYPASS 1: query remote tables directly (expect ORA-00942 / privilege error) ===
WHENEVER SQLERROR CONTINUE;
SELECT COUNT(*) FROM "public"."customers"@RDS_POSTGRES_LINK;
SELECT COUNT(*) FROM "ecommerce_poc"."customers"@RDS_LINK;
PROMPT
PROMPT === BYPASS 2: try to spoof the context (expect ORA-01031) ===
BEGIN
DBMS_SESSION.SET_CONTEXT('VPD_CTX','V_CUSTOMERS_PG','*');
END;
/
PROMPT
PROMPT === BYPASS 3: try to drop the policy (expect ORA-00942 / privilege error) ===
BEGIN
DBMS_RLS.DROP_POLICY('ADMIN','V_CUSTOMERS_PG','CUSTOMERS_PG_POLICY');
END;
/
PROMPT
PROMPT === BYPASS 4: try to read the permission table (expect ORA-00942) ===
SELECT COUNT(*) FROM admin.permission;
PROMPT
PROMPT === BYPASS 5: try to read app_user (expect ORA-00942) ===
SELECT COUNT(*) FROM admin.app_user;
EXIT;