The Archify application contains a local privilege escalation vulnerability due to insufficient client validation in its privileged helper tool, com.oct4pie.archifyhelper, which is exposed via XPC. Archify follows the "factored applications" model, delegating privileged operations—such as arbitrary file deletion and file permission changes—to this helper running as root. However, the helper does not verify the code signature, entitlements, or signing flags of the connecting client. Although macOS provides secure validation mechanisms like auditToken, these are not implemented. As a result, any local process can establish a connection to the helper and invoke privileged functionality, leading to unauthorized execution of actions with root-level privileges.
| Métrique | Valeur | Interprétation |
|---|---|---|
|
AV (Vecteur d'Attaque)
Attack Vector
|
Local (L)
|
Exploit nécessite un accès local au système |
|
AC (Complexité d'Attaque)
Attack Complexity
|
Low (L)
|
Peu de conditions requises pour exploiter |
|
PR (Privilèges Requis)
Privileges Required
|
Low (L)
|
Authentifié avec compte utilisateur basique |
|
UI (Interaction Utilisateur)
User Interaction
|
None (N)
|
Aucune interaction utilisateur nécessaire |
|
S (Périmètre)
Scope
|
Unchanged (U)
|
Impact reste dans le périmètre du composant compromis |
|
C (Impact Confidentialité)
Confidentiality Impact
|
High (H)
|
Divulgation totale d'informations |
|
I (Impact Intégrité)
Integrity Impact
|
High (H)
|
Modification totale des données possible |
|
A (Impact Disponibilité)
Availability Impact
|
High (H)
|
Interruption totale du service possible |
macOS Archify: Local Privilege Escalation