we don't remember weblogic admin password

 we can get it as below:

[applmgr@ebs1213 ~]$ sh /u01/app/oracle/ebsappl/FIN2DB/fs1/FMW_Home/wlserver_10.3/common/bin/wlst.sh

Initializing WebLogic Scripting Tool (WLST) ...

Welcome to WebLogic Server Administration Scripting Shell

Type help() for help on available commands

wls:/offline> domain="/u01/app/oracle/ebsappl/FIN2DB/fs1/FMW_Home/user_projects/domains/EBS_domain_FIN2DB"

wls:/offline> service = weblogic.security.internal.SerializedSystemIni.getEncryptionService(domain)

wls:/offline> encryption = weblogic.security.internal.encryption.ClearOrEncryptedService(service)

wls:/offline> print encryption.decrypt("{AES}Gp7Q+3yqpimz1+27+ftmbCRHpgkMTpEZc67RsxM9XS0=")

weblogic@123

wls:/offline>

We can get encrypted password from boot.properties.

[applmgr@ebs1213 security]$ cd $FMW_HOME/user_projects/domains/EBS_domain_FIN2DB/servers/AdminServer/security

[applmgr@ebs1213 security]$ cat boot.properties

username={AES}LY9AdjI1A7wTpNJpOl4/aMIH3uc0HEwLVcbM9kXwffE=

password={AES}Gp7Q+3yqpimz1+27+ftmbCRHpgkMTpEZc67RsxM9XS0=