Credential Access Protection
Use capabilities to prevent successful credential access by adversaries; including blocking forms of credential dumping.
Techniques Addressed by Mitigation
| Domain | ID | Name | Use | |
|---|---|---|---|---|
| Enterprise | T1547 | .008 | Boot or Logon Autostart Execution: LSASS Driver |
On Windows 10 and Server 2016, enable Windows Defender Credential Guard [1] to run lsass.exe in an isolated virtualized environment without any device drivers. [2] |
| Enterprise | T1601 | Modify System Image |
Some embedded network devices are capable of storing passwords for local accounts in either plain-text or encrypted formats. Ensure that, where available, local passwords are always encrypted, per vendor recommendations. [3] |
|
| .001 | Patch System Image |
Some embedded network devices are capable of storing passwords for local accounts in either plain-text or encrypted formats. Ensure that, where available, local passwords are always encrypted, per vendor recommendations. [3] |
||
| .002 | Downgrade System Image |
Some embedded network devices are capable of storing passwords for local accounts in either plain-text or encrypted formats. Ensure that, where available, local passwords are always encrypted, per vendor recommendations. [3] |
||
| Enterprise | T1599 | Network Boundary Bridging |
Some embedded network devices are capable of storing passwords for local accounts in either plain-text or encrypted formats. Ensure that, where available, local passwords are always encrypted, per vendor recommendations.[4] |
|
| .001 | Network Address Translation Traversal |
Some embedded network devices are capable of storing passwords for local accounts in either plain-text or encrypted formats. Ensure that, where available, local passwords are always encrypted, per vendor recommendations. [4] |
||
| Enterprise | T1003 | OS Credential Dumping |
With Windows 10, Microsoft implemented new protections called Credential Guard to protect the LSA secrets that can be used to obtain credentials through forms of credential dumping. It is not configured by default and has hardware and firmware system requirements. [5] It also does not protect against all forms of credential dumping. [6] |
|
| .001 | LSASS Memory |
With Windows 10, Microsoft implemented new protections called Credential Guard to protect the LSA secrets that can be used to obtain credentials through forms of credential dumping. It is not configured by default and has hardware and firmware system requirements. It also does not protect against all forms of credential dumping.[5][6] |
||
| Enterprise | T1558 | Steal or Forge Kerberos Tickets |
On Linux systems, protect resources with Security Enhanced Linux (SELinux) by defining entry points, process types, and file labels.[7] |
|
| .005 | Ccache Files |
Protect resources with Security Enhanced Linux (SELinux) by defining entry points, process types, and file labels.[7] |
||
References
- Lich, B., Tobin, J., Hall, J. (2017, April 5). Manage Windows Defender Credential Guard. Retrieved November 27, 2017.
- Lich, B., Tobin, J. (2017, April 5). How Windows Defender Credential Guard works. Retrieved November 27, 2017.
- Cisco. (n.d.). Cisco IOS Software Integrity Assurance - Credentials Management. Retrieved October 19, 2020.
- Cisco. (n.d.). Cisco IOS Software Integrity Assurance - AAA. Retrieved October 19, 2020.
- Lich, B. (2016, May 31). Protect derived domain credentials with Credential Guard. Retrieved June 1, 2016.
- NSA IAD. (2017, April 20). Secure Host Baseline - Credential Guard. Retrieved April 25, 2017.
- Tim Wadhwa-Brown. (2018, November). Where 2 worlds collide Bringing Mimikatz et al to UNIX. Retrieved October 13, 2021.