triobars.blogg.se - Usabler serial number for kjams

#USABLER SERIAL NUMBER FOR KJAMS SERIAL NUMBERS#

The device authenticates to the DEP API, then retrieves its Activation Record.

The MDM server retrieves the device record through the DEP API, then creates a DEP profile.

The organization using DEP to bootstrap MDM enrollment assigns the device to their MDM server in Apple Business Manager.

Apple, (or an Apple Authorized Reseller), creates a device record through the DEP API.

This bootstrapping process involves several asynchronous steps: Finally, we discuss mitigations for both Apple and customers currently leveraging DEP or hoping to do so in the future.īefore a device can automatically enroll into its organization's MDM server through DEP, a bootstrapping process must be completed. In this paper, we briefly look at the DEP enrollment process, then dive deeper into how endpoints are authenticated prior to enrollment. This doesn’t have to be the case, but due to some limitations in how devices are authenticated prior to MDM enrollment makes this possible. Unfortunately, if an organization has not taken additional steps to protect their MDM enrollment, a simplified end-user enrollment process through DEP can also mean a simplified process for attackers to enroll a device of their choosing in the organization’s MDM server, assuming the "identity" of a corporate device.Īdditionally, the attacker could retrieve information about the organization that owns a particular Apple device. Instead of manually performing cumbersome MDM enrollment, or using traditional endpoint deployment methods like imaging, users can unbox their new device and be ready to go on day one. The benefits of Apple’s Device Enrollment Program seem obvious, at least for user experience reasons. Once a device is enrolled, in many cases it is treated as a “trusted” device owned by the organization, and could receive any number of certificates, applications, WiFi passwords, VPN configurations and so on. In June 2018, the standalone DEP service was rolled into Apple Business Manager (ABM) and Apple School Manager (ASM), allowing businesses and educational institutions to use a single service that handles both Device Deployment (DEP) and " Apps and Books" (VPP).Īdministrators can leverage DEP to automatically enroll devices in their organization’s MDM server.

The scope of DEP has also increased over time. Unlike more traditional deployment methods, which require the end-user or administrator to take action to configure a device, or manually enroll with an MDM server, DEP aims to bootstrap this process, allowing the user to unbox a new Apple device and have it configured for use in the organization almost immediately.

The Device Enrollment Program (DEP) is a service offered by Apple that simplifies Mobile Device Management (MDM) enrollment by offering zero-touch configuration of iOS, macOS, and tvOS devices.

Management of devices via MDM requires a compatible commercial or open-source MDM server that implements support for the MDM Protocol. In the case of Apple platforms like iOS, macOS and tvOS, it refers to a specific set of features, APIs and techniques used by administrators to manage these devices. Mobile Device Management (MDM) is a technology commonly used to administer end-user computing devices such as mobile phones, laptops, desktops and tablets. Once enrolled, the device may receive any number of certificates, applications, WiFi passwords, VPN configurations and so on. Obtaining the DEP profile for a given Apple device discloses information about the organization that owns the device, and - if the MDM server doesn't require additional user authentication during enrollment - could be used by an attacker to enroll a device of their choosing into an organization’s MDM server. This allowed us to retrieve data specific to the device associated with the supplied serial number.

#USABLER SERIAL NUMBER FOR KJAMS SERIAL NUMBERS#

Additionally, we developed a method to instrument the cloudconfigurationd daemon to inject Apple device serial numbers of our choosing into the request sent to the DEP API. In our research, we found that in order to retrieve the DEP profile for an Apple device, the DEP service only requires the device serial number to be supplied to an undocumented DEP API. DEP hosts an internet-facing API at, which - among other things - is used by the cloudconfigurationd daemon on macOS systems to request DEP Activation Records and query whether a given device is registered in DEP. The Device Enrollment Program (DEP) is a service provided by Apple for bootstrapping Mobile Device Management (MDM) enrollment of iOS, macOS, and tvOS devices.