ASVS V20 Internet of Things

This section contains controls that are Embedded/IoT device specific. These controls must be taken in conjunction with all other sections of the relevant ASVS Verification Level.
 * 1) V20: Internet of Things Verification Requirements


 * 1) Control Objective

Embedded/IoT devices should:


 * Have the same level of security controls within the device as found in the server, by enforcing security controls in a trusted environment.
 * Sensitive data stored on the device should be done so in a secure manner.
 * All sensitive data transmitted from the device should utilize transport layer security.


 * 1) Security Verification Requirements


 * # | Description | L1 | L2 | L3 | Since |
 * **20.1** | Verify that application layer debugging interfaces such USB or serial are disabled. | ✓ | ✓ | ✓ | 3.1 |
 * **20.1** | Verify that cryptographic keys are unique to each individual device. | ✓ | ✓ | ✓ | 3.1 |
 * **20.1** | Verify that memory protection controls such as ASLR and DEP are enabled by the embedded/IoT operating system, if applicable. | ✓ | ✓ | ✓ | 3.1 |
 * **20.1** | Verify that on-chip debugging interfaces such as JTAG or SWD are disabled or that available protection mechanism is enabled and configured appropriately. | ✓ | ✓ | ✓ | 3.1 |
 * **20.1** | Verify that physical debug headers are not present on the device. | ✓ | ✓ | ✓ | 3.1 |
 * **20.1** | Verify that sensitive data is not stored unencrypted on the device. | ✓ | ✓ | ✓ | 3.1 |
 * **20.1** | Verify that the device prevents leaking of sensitive information. | ✓ | ✓ | ✓ | 3.1 |
 * **20.1** | Verify that the firmware apps protect data-in-transit using transport security. | ✓ | ✓ | ✓ | 3.1 |
 * **20.1** | Verify that the firmware apps validate the digital signature of server connections. | ✓ | ✓ | ✓ | 3.1 |
 * **20.1** | Verify that wireless communications are mutually authenticated. | ✓ | ✓ | ✓ | 3.1 |
 * **20.1** | Verify that wireless communications are sent over an encrypted channel. | ✓ | ✓ | ✓ | 3.1 |
 * **20.1** | Verify that the firmware apps pin the digital signature to a trusted server(s). | | ✓ | ✓ | 3.1 |
 * **20.1** | Verify the presence of physical tamper resistance and/or tamper detection features, including epoxy. | | ✓ | ✓ | 3.1 |
 * **20.1** | Verify that identifying markings on chips have been removed. | | ✓ | ✓ | 3.1 |
 * **20.1** | Verify that any available Intellectual Property protection technologies provided by the chip manufacturer are enabled. | | ✓ | ✓ | 3.1 |
 * **20.1** | Verify security controls are in place to hinder firmware reverse engineering (e.g., removal of verbose debugging strings). | | ✓ | ✓ | 3.1 |
 * **20.1** | Verify the device validates the boot image signature before loading. | | ✓ | ✓ | 3.1 |
 * **20.1** | Verify that the firmware update process is not vulnerable to time-of-check vs time-of-use attacks. | | ✓ | ✓ | 3.1 |
 * **20.1** | Verify the device uses code signing and validates firmware upgrade files before installing. | | ✓ | ✓ | 3.1 |
 * **20.1** | Verify that the device cannot be downgraded to old versions of valid firmware. | | ✓ | ✓ | 3.1 |
 * **20.1** | Verify usage of cryptographically secure pseudo-random number generator on embedded device (e.g., using chip-provided random number generators). | | ✓ | ✓ | 3.1 |
 * **20.1** | Verify that the device wipes firmware and sensitive data upon detection of tampering or receipt of invalid message. | |  | ✓ | 3.1 |
 * **20.1** | Verify that only microcontrollers that support disabling debugging interfaces (e.g. JTAG, SWD) are used. | |  | ✓ | 3.1 |
 * **20.1** | Verify that only microcontrollers that provide substantial protection from de-capping and side channel attacks are used. | |  | ✓ | 3.1 |
 * **20.1** | Verify that sensitive traces are not exposed to outer layers of the printed circuit board. | |  | ✓ | 3.1 |
 * **20.1** | Verify that inter-chip communication is encrypted. | |  | ✓ | 3.1 |
 * **20.1** | Verify the device uses code signing and validates code before execution. | |  | ✓ | 3.1 |
 * **20.1** | Verify that sensitive information maintained in memory is overwritten with zeros as soon as it is no longer required. | |  | ✓ | 3.1 |
 * **20.1** | Verify that the firmware apps utilize kernel containers for isolation between apps. | |  | ✓ | 3.1 |
 * **20.1** | Verify that the firmware apps utilize kernel containers for isolation between apps. | |  | ✓ | 3.1 |


 * 1) References

For more information, see also:


 * [OWASP Internet of Things Top 10](https://www.owasp.org/images/7/71/Internet_of_Things_Top_Ten_2014-OWASP.pdf)
 * [OWASP Internet of Things Project](https://www.owasp.org/index.php/OWASP_Internet_of_Things_Project)
 * [Trudy TCP Proxy Tool](https://github.com/praetorian-inc/trudy)