3494171 - SWPM fails to change SYS user password with error ORA-01031: insufficient privileges - NetWeaver

• brconnect -u / -c -f chpass -o SYS -p <password>
  BR0301E SQL error -1031 at location password_change-11, SQL statement:
  '/* BRCONNECT */ ALTER USER "SYS" IDENTIFIED BY "****************"'
  ORA-01031: insufficient privileges
  BR0832E Changing password for user SYS failed
• In Br*tools trace brconnect fails to connect in SYSDBA MODE with error ORA-01017.
  BR0644I BR_TRACE: location db_connect-3, SQL statement:
  'CONNECT / IN SYSDBA MODE'
  BR0300I BR_TRACE: SQL code: -1017, number of processed rows: 0
• The command sqlplus / as sysdba also fails with error ORA-01017 by user <sid>adm
  OS> sqlplus / as sysdba
  SQL*Plus: Release 19.0.0.0.0 - Production on Tue Jul 9 11:39:03 2024
  Version 19.3.0.0.0
  Copyright (c) 1982, 2019, Oracle.  All rights reserved.
  ERROR:
  ORA-01017: invalid username/password; logon denied
• <sid>adm user is in group dba but the database administrator (OSDBA) group is not dba

SAP NetWeaver on Oracle database on Unix

ORA-01031,-1031,ORA-01017,-1017,CONNECT / IN SYSDBA MODE,ALTER USER "SYS" IDENTIFIED BY , KBA , BC-DB-ORA , Oracle , Problem