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CONTAP-784877: CONTAP-784877 - CIFS/MSRPC svcctl: OpenSCManagerW grants success and static SCM handle to non-admin (no authorization), causing "admin-like" pentest finding

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ontap-9
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NAS
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Issue

ONTAP's SVCCTL named pipe implementation (\PIPE\svcctl) allows any authenticated domain user to successfully call OpenSCManagerW (opnum 15) with SC_MANAGER_ALL_ACCESS (0x0000003f) and receive WERR_OK with a valid SCM handle, regardless of whether the user is a member of BUILTIN\Administrators. This violates the MS-SCMR specification which mandates that the server evaluate the caller's security token against the SCM's security descriptor before granting access.

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