?0[steffen@essex tmp]$ ll /usr/bin/passwd lrwxrwxrwx 1 root root 11 Dec 17 03:01 /usr/bin/passwd -> /bin/bbsuid* ?0[steffen@essex tmp]$ apk info --who-owns /bin/bbsuid /bin/bbsuid is owned by busybox-suid-1.27.2-r7 ?0[steffen@essex tmp]$ passwd Changing password for steffen Old password: New password: Bad password: similar to old password passwd: password for steffen is unchanged That is not true, the new one was one graphical symbol longer.
Where does it say "identical password"? I see only "similar to old password". If you do not want checks for weak passwords, switch off FEATURE_PASSWD_WEAK_CHECK.