The Network Master Key
A critical flaw in Cisco software that runs company networks let outsiders act as the top administrator without a password, and attackers already used it.
Key terms
AP Cybersecurity alignment
- 2.1.C.3In the initial-access phase of an attack, adversaries establish a foothold on the target’s computer, often through social engineering or compromised or weak credentials.Learning objective: Describe the phases of a cyberattack.
- 3.4.C.3Each point of data ingress and egress between the internal network and the public internet should have a firewall.Learning objective: Determine the effective placement of firewalls in a network.
- 4.1.C.1Adversaries can develop exploits for known vulnerabilities in software (including operating systems). Devices with unpatched software are vulnerable to these exploits, which could allow an adversary to crash a system, view…Learning objective: Explain how adversaries can exploit common device vulnerabilities to cause loss, damage, disruption, or destruction.
AP Networking alignment
- 3.5.B.3A perimeter firewall protects the boundary between internal and external networks and serves as the first line of defense against external threats. It handles high traffic volumes and applies broad security policies to all…Learning objective: Determine an appropriate firewall for a scenario.
- 4.5.A.3Widespread data compromise, service outages, or loss of administrative control can occur when an adversary or malicious software moves laterally across a network. These impacts are more likely in segmented or large networks…Learning objective: Identify the impacts of common threats and vulnerabilities in a managed network.
- 4.6.B.4Applying and documenting software updates and patches reduces the risk of failure and reduces recovery time if an outage occurs.Learning objective: Identify ways to improve the reliability and availability of networked systems.