A cloud identity created or modified a security group

Cortex XDR Analytics Alert Reference by Alert name

Product

Cortex XDR

Last date published

2024-09-24

Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	1 Day
Required Data	Requires one of the following data sources: AWS Audit Log OR Azure Audit Log OR Gcp Audit Log
Detection Modules	Cloud
Detector Tags
ATT&CK Tactic	Defense Evasion (TA0005)
ATT&CK Technique	Impair Defenses: Disable or Modify Cloud Firewall (T1562.007)
Severity	Informational

A cloud identity created or modified a security group.

Check which security rules were added or modified.
Check whether the identity that modified the security group rules is permitted to perform such action.
Check which cloud resources can be affected by the security group.

ATT&CK Tactic	Defense Evasion (TA0005)
ATT&CK Technique	Impair Defenses: Disable or Modify Cloud Firewall (T1562.007)
Severity	Medium

A cloud identity modified a security group to allow network access from the Internet.

Check which security rules were added or modified.
Check whether the identity that modified the security group rules is permitted to perform such action.
Check which cloud resources can be affected by the security group.

ATT&CK Tactic	Defense Evasion (TA0005)
ATT&CK Technique	Impair Defenses: Disable or Modify Cloud Firewall (T1562.007)
Severity	Low

A cloud identity modified a security group to allow network access from unknown IP.

Check which security rules were added or modified.
Check whether the identity that modified the security group rules is permitted to perform such action.
Check which cloud resources can be affected by the security group.