Kubernetes pod creation with host network

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	5 Days
Required Data	Requires one of the following data sources: AWS Audit Log OR Azure Audit Log OR Gcp Audit Log OR Kubernetes Audit Logs
Detection Modules	Cloud
Detector Tags	Kubernetes - API
ATT&CK Tactic	Privilege Escalation (TA0004), Execution (TA0002)
ATT&CK Technique	Escape to Host (T1611), Deploy Container (T1610)
Severity	Informational

Description

An identity created a Kubernetes pod attached to the host network. This may indicate an adversary attempting to access services bound to localhost, sniff traffic on any interface on the host, and potentially bypass the network policy.

Attacker's Goals

• Access services bound to localhost.
• Sniff traffic on any interface on the host.
• Bypass network policy.

Investigative actions

• Check the identity's role designation in the organization.
• Inspect for any unusual access to localhost services.
• Inspect for any network sniffing tool being used inside the Kubernetes Pod.

Variations

Kubernetes pod creation with host network for the first time in the cluster

Synopsis

Field	Value
ATT&CK Tactic	Privilege Escalation (TA0004), Execution (TA0002)
ATT&CK Technique	Escape to Host (T1611), Deploy Container (T1610)
Severity	Low

Description

An identity created a Kubernetes pod attached to the host network. This may indicate an adversary attempting to access services bound to localhost, sniff traffic on any interface on the host, and potentially bypass the network policy.

Attacker's Goals

• Access services bound to localhost.
• Sniff traffic on any interface on the host.
• Bypass network policy.

Investigative actions

• Check the identity's role designation in the organization.
• Inspect for any unusual access to localhost services.
• Inspect for any network sniffing tool being used inside the Kubernetes Pod.

Kubernetes pod creation with host network for the first time in the namespace

Synopsis

Field	Value
ATT&CK Tactic	Privilege Escalation (TA0004), Execution (TA0002)
ATT&CK Technique	Escape to Host (T1611), Deploy Container (T1610)
Severity	Low

Description

An identity created a Kubernetes pod attached to the host network. This may indicate an adversary attempting to access services bound to localhost, sniff traffic on any interface on the host, and potentially bypass the network policy.

Attacker's Goals

• Access services bound to localhost.
• Sniff traffic on any interface on the host.
• Bypass network policy.

Investigative actions

• Check the identity's role designation in the organization.
• Inspect for any unusual access to localhost services.
• Inspect for any network sniffing tool being used inside the Kubernetes Pod.

Kubernetes pod creation with host network for the first time by the identity

Synopsis

Field	Value
ATT&CK Tactic	Privilege Escalation (TA0004), Execution (TA0002)
ATT&CK Technique	Escape to Host (T1611), Deploy Container (T1610)
Severity	Low

Description

An identity created a Kubernetes pod attached to the host network. This may indicate an adversary attempting to access services bound to localhost, sniff traffic on any interface on the host, and potentially bypass the network policy.

Attacker's Goals

• Access services bound to localhost.
• Sniff traffic on any interface on the host.
• Bypass network policy.

Investigative actions

• Check the identity's role designation in the organization.
• Inspect for any unusual access to localhost services.
• Inspect for any network sniffing tool being used inside the Kubernetes Pod.