Brute Force CLI Access

Identifying brute force Command Line Interface (CLI) access attempts, particularly through protocols like SSH (Secure Shell) and telnet, is crucial in safeguarding network security. Brute force attacks involve repeated attempts to guess login credentials and gain unauthorized access to systems. These attacks pose a significant threat as they can lead to compromised systems, data breaches, and unauthorized control over critical network resources. In the context of SSH and telnet, which are commonly used for secure administrative access to devices and servers, detecting brute force attempts is paramount. Early detection allows network administrators to implement countermeasures, such as blocking malicious IP addresses, enforcing strong password policies, or setting up additional authentication mechanisms, thereby mitigating potential security risks.

ElastiFlow provides a collection of anomaly detection jobs designed to identify brute force CLI access attempts through SSH and telnet including several targeted monitoring and analysis strategies.

Attributes

Attribute	Information
Analysis Type	population
MITRE ATT&CK Technique	Brute Force (T1110)
MITRE ATT&CK Sub-Technique	Password Guessing (T1110.001)
MITRE ATT&CK Tactic	Credential Access (TA0006)

Downloads

Schema	Vector	Perspective	Window	Link
CODEX	direct	edge	fast	elastiflow_codex_netsec_bruteforce_direct_cli_edge_fast
CODEX	direct	edge	slow	elastiflow_codex_netsec_bruteforce_direct_cli_edge_slow
CODEX	direct	inbound	fast	elastiflow_codex_netsec_bruteforce_direct_cli_in_fast
CODEX	direct	inbound	slow	elastiflow_codex_netsec_bruteforce_direct_cli_in_slow
CODEX	direct	outbound	fast	elastiflow_codex_netsec_bruteforce_direct_cli_out_fast
CODEX	direct	outbound	slow	elastiflow_codex_netsec_bruteforce_direct_cli_out_slow
CODEX	direct	private	fast	elastiflow_codex_netsec_bruteforce_direct_cli_priv_fast
CODEX	direct	private	slow	elastiflow_codex_netsec_bruteforce_direct_cli_priv_slow
CODEX	distributed	edge	fast	elastiflow_codex_netsec_bruteforce_distrib_cli_edge_fast
CODEX	distributed	edge	slow	elastiflow_codex_netsec_bruteforce_distrib_cli_edge_slow
CODEX	distributed	inbound	fast	elastiflow_codex_netsec_bruteforce_distrib_cli_in_fast
CODEX	distributed	inbound	slow	elastiflow_codex_netsec_bruteforce_distrib_cli_in_slow
CODEX	distributed	outbound	fast	elastiflow_codex_netsec_bruteforce_distrib_cli_out_fast
CODEX	distributed	outbound	slow	elastiflow_codex_netsec_bruteforce_distrib_cli_out_slow
CODEX	distributed	private	fast	elastiflow_codex_netsec_bruteforce_distrib_cli_priv_fast
CODEX	distributed	private	slow	elastiflow_codex_netsec_bruteforce_distrib_cli_priv_slow
ECS	direct	edge	fast	elastiflow_ecs_netsec_bruteforce_direct_cli_edge_fast
ECS	direct	edge	slow	elastiflow_ecs_netsec_bruteforce_direct_cli_edge_slow
ECS	direct	inbound	fast	elastiflow_ecs_netsec_bruteforce_direct_cli_in_fast
ECS	direct	inbound	slow	elastiflow_ecs_netsec_bruteforce_direct_cli_in_slow
ECS	direct	outbound	fast	elastiflow_ecs_netsec_bruteforce_direct_cli_out_fast
ECS	direct	outbound	slow	elastiflow_ecs_netsec_bruteforce_direct_cli_out_slow
ECS	direct	private	fast	elastiflow_ecs_netsec_bruteforce_direct_cli_priv_fast
ECS	direct	private	slow	elastiflow_ecs_netsec_bruteforce_direct_cli_priv_slow
ECS	distributed	edge	fast	elastiflow_ecs_netsec_bruteforce_distrib_cli_edge_fast
ECS	distributed	edge	slow	elastiflow_ecs_netsec_bruteforce_distrib_cli_edge_slow
ECS	distributed	inbound	fast	elastiflow_ecs_netsec_bruteforce_distrib_cli_in_fast
ECS	distributed	inbound	slow	elastiflow_ecs_netsec_bruteforce_distrib_cli_in_slow
ECS	distributed	outbound	fast	elastiflow_ecs_netsec_bruteforce_distrib_cli_out_fast
ECS	distributed	outbound	slow	elastiflow_ecs_netsec_bruteforce_distrib_cli_out_slow
ECS	distributed	private	fast	elastiflow_ecs_netsec_bruteforce_distrib_cli_priv_fast
ECS	distributed	private	slow	elastiflow_ecs_netsec_bruteforce_distrib_cli_priv_slow

By deploying this suite of anomaly detection jobs, organizations can effectively monitor for and rapidly identify brute force access attempts on SSH and telnet interfaces. Prompt detection is essential for taking immediate action to secure the network against unauthorized access, ensuring the protection of sensitive data and the integrity of network operations. This proactive approach to network security is a critical aspect of modern network management in an increasingly connected and security-conscious digital environment.