> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/analytics-alerts/alerts-by-name/a-cloud-identity-created-or-modified-a-security-group.md).

# A cloud identity created or modified a security group

### Synopsis

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

### Description

A cloud identity created or modified a security group.

### Attacker's Goals

* Bypass network security controls to gain access to restricted cloud resources.

### Investigative actions

* 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.

### Variations

<details>

<summary>A cloud identity opened a security group to the Internet</summary>

**Synopsis**

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

**Description**

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

**Attacker's Goals**

* Bypass network security controls to gain access to restricted cloud resources.

**Investigative actions**

* 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.

</details>

<details>

<summary>A cloud identity opened a security group to an unknown IP</summary>

**Synopsis**

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

**Description**

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

**Attacker's Goals**

* Bypass network security controls to gain access to restricted cloud resources.

**Investigative actions**

* 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.

</details>


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