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LockSmith

LockSmith is an Objective-C CLI tool for interacting with the macOS file-based Keychains through native APIs.

Compiling the XCode project will generate both the LockSmith MachO file along with a LockSmithDylib Dylib that can be used for injection into other programs. The dylib's execution takes place in the constructor located at the bottom of the main.m file. Because this sort of execution doesn't really allow passing in of parameters, you need to edit the exec function directly with the parameters you want to use for your search before you compile.

LockSmithLiteJXA is a smaller JXA-based version of LockSmith so that you can get similar functionality while running under the context of an apple signed binary (osascript). This is helpful if you need to match a partitionID of apple: or apple-tool:.

Arguments

  • account - The account name to search by.
  • label - The label to search by.
  • keyClass - The type of entries to search for. Defaults to genp (general passwords and secure notes), but also accepts intp, cert, keys, idnt, or all.
  • debug - If you want to also print out the current process path and requirements string.
  • force - If you want to force LockSmith decrypt the matching entries regardless of if LockSmith thinks it can decrypt them or not.
  • validate - If you want to validate the applications listed in the Trusted Applications lists for matching ACLs.
  • partitionID - If there's a specific partitionID you want to force decrypt (ex: teamid:abcd123). This only applies to entries that match your account and label searches, you can't just search by partitionID.
  • popups - If you want to allow the program to generate popups or not (Defaults to false).

Examples

./LockSmith -label com.apple.kerberos.kdc -keyClass keys -force true
[+] Keychain is unlocked
=================================
      Keychain Entry 0
=================================
Account:       (null)
Label:         com.apple.kerberos.kdc
Service:       (null)
Creation Date: (null)
Modify Date:   (null)
Class:         keys
Key details:
	Signable:   NO
	kcls:       0
	Encrypt:    YES
	Decrypt:    NO
	Wrap Key:   YES
	Unwrap Key: NO
	Verify Key: YES
	Key Type:   42
	Permanent:  YES
	Derive Key: NO
	klbl:       u42qj2Ak/VADT1ijGh+MrotcPDA=
	esiz:       2048
	bsiz:       2048
Owner Authorizations based on ACLAuthorizationPartitionID
Owner Authorizations:
	ACLAuthorizationAny
------------ACLS------------
	--- Entry 0
		Description: (null)
		All applications are trusted
		Authorizations: 
			 ACLAuthorizationAny
	--- Entry 1
		Description: (null)
		All applications are trusted
		Authorizations: 
			 ACLAuthorizationChangeACL
SENSITIVE SECRET BASE64: LS0tLS1CRUd<snip>
=================================
      Keychain Entry 1
=================================
Account:       (null)
Label:         com.apple.kerberos.kdc
Service:       (null)
Creation Date: (null)
Modify Date:   (null)
Class:         keys
Key details:
	Signable:   YES
	kcls:       1
	Encrypt:    NO
	Decrypt:    YES
	Wrap Key:   NO
	Unwrap Key: YES
	Verify Key: NO
	Key Type:   42
	Permanent:  YES
	Derive Key: NO
	klbl:       u42qj2Ak/VADT1ijGh+MrotcPDA=
	esiz:       2048
	bsiz:       2048
OwnerID: 0
GroupID: 0
OwnerType: 0x1
	Owner Authorizations don't match our user context
Owner Authorizations:
	ACLAuthorizationAny
	ACLAuthorizationDecrypt
	ACLAuthorizationDerive
	ACLAuthorizationExportClear
	ACLAuthorizationExportWrapped
	ACLAuthorizationMAC
	ACLAuthorizationSign
------------ACLS------------
	--- Entry 0
		Failed to copy contents with error: -25240
		Failed to copy simple contents with error: -25240
		Authorizations: 
			 ACLAuthorizationAny
	--- Entry 1
		Description: lkdc-acl
		Trusted App: /System/Library/PrivateFrameworks/Heimdal.framework/Helpers/kdc
			Requirement String: identifier "com.apple.kdc" and anchor apple
		Authorizations: 
			 ACLAuthorizationDecrypt
			 ACLAuthorizationDerive
			 ACLAuthorizationExportClear
			 ACLAuthorizationExportWrapped
			 ACLAuthorizationMAC
			 ACLAuthorizationSign
	--- Entry 2
		Failed to copy contents with error: -25240
		Failed to copy simple contents with error: -25240
		Authorizations: 
			 ACLAuthorizationChangeACL
Failed to get password - requires passphrase

./LockSmith -account Slack                                          
[+] Keychain is unlocked
=================================
      Keychain Entry 0
=================================
Account:       Slack
Label:         Slack Safe Storage
Service:       Slack Safe Storage
Creation Date: 2021-11-12 22:27:45
Modify Date:   2021-11-12 22:27:45
Class:         genp
Owner Authorizations based on ACLAuthorizationPartitionID
Owner Authorizations:
	ACLAuthorizationEncrypt
	ACLAuthorizationDecrypt
	ACLAuthorizationDerive
	ACLAuthorizationExportClear
	ACLAuthorizationExportWrapped
	ACLAuthorizationMAC
	ACLAuthorizationSign
	ACLAuthorizationIntegrity
	ACLAuthorizationPartitionID
------------ACLS------------
	--- Entry 0
		Description: Slack Safe Storage
		All applications are trusted
		Authorizations: 
			 ACLAuthorizationEncrypt
	--- Entry 1
		Description: Slack Safe Storage
		Trusted App: /Applications/Slack.app
			Requirement String: identifier "com.tinyspeck.slackmacgap" and anchor apple generic and certificate 1[field.1.2.840.113635.100.6.2.6] /* exists */ and certificate leaf[field.1.2.840.113635.100.6.1.13] /* exists */ and certificate leaf[subject.OU] = BQR82RBBHL
		Authorizations: 
			 ACLAuthorizationDecrypt
			 ACLAuthorizationDerive
			 ACLAuthorizationExportClear
			 ACLAuthorizationExportWrapped
			 ACLAuthorizationMAC
			 ACLAuthorizationSign
	--- Entry 2
		Description: 9c7d3204702cae4e374379f65059d1d695ada67bb1efd6f69cb34bdb6127ab29
		All applications are trusted
		Authorizations: 
			 ACLAuthorizationIntegrity
	--- Entry 3
		Allowed Code Signatures: teamid:BQR82RBBHL
			TeamID doesn't match current application: nil
		Description: 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
		All applications are trusted
		Authorizations: 
			 ACLAuthorizationPartitionID
	--- Entry 4
		Description: Slack Safe Storage
		No applications are trusted
		Authorizations: 
			 ACLAuthorizationChangeACL
[-] Cannot get password data without prompting due to: not a trusted application or missing required authorizations