Data from Configuration Repository
Adversaries may collect data related to managed devices from configuration repositories. Configuration repositories are used by management systems in order to configure, manage, and control data on remote systems. Configuration repositories may also facilitate remote access and administration of devices.
Adversaries may target these repositories in order to collect large quantities of sensitive system administration data. Data from configuration repositories may be exposed by various protocols and software and can store a wide variety of data, much of which may align with adversary Discovery objectives.
|Encrypt Sensitive Information||
Configure SNMPv3 to use the highest level of security (authPriv) available.
|Filter Network Traffic||
Apply extended ACLs to block unauthorized protocols outside the trusted network.
|Network Intrusion Prevention||
Configure intrusion prevention devices to detect SNMP queries and commands from unauthorized sources.
Segregate SNMP traffic on a separate management network.
Allowlist MIB objects and implement SNMP views.
Keep system images and software updated and migrate to SNMPv3.
Identify network traffic sent or received by untrusted hosts or networks that solicits and obtains the configuration information of the queried device.
- US-CERT. (2018, April 20). Alert (TA18-106A) Russian State-Sponsored Cyber Actors Targeting Network Infrastructure Devices. Retrieved October 19, 2020.
- US-CERT. (2017, June 5). Reducing the Risk of SNMP Abuse. Retrieved October 19, 2020.
- Cisco. (2006, May 10). Securing Simple Network Management Protocol. Retrieved October 19, 2020.