Microsoft.keyvault.vaults.keys.write

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Event Information

1. The Microsoft.KeyVault.vaults.keys.write event in Azure for AzureSecurityService indicates that a key has been written or updated in an Azure Key Vault.
2. This event is triggered when a new key is created or an existing key is modified within the Key Vault.
3. It is important to monitor this event as it can help track any changes made to keys stored in the Key Vault, ensuring the security and integrity of sensitive data.

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Examples

1. Unauthorized access: If security is impacted with Microsoft.KeyVault.vaults.keys.write in Azure for AzureSecurityService, it could mean that unauthorized individuals or entities are able to write or modify keys within the Azure Key Vault. This could lead to potential data breaches or unauthorized access to sensitive information stored within the vault.
2. Key tampering: Another example of security impact could be the potential for key tampering. If unauthorized individuals gain write access to the keys in the Azure Key Vault, they could modify or tamper with the keys, compromising the integrity and security of encrypted data or resources that rely on those keys for encryption or decryption.
3. Key leakage: A security impact of Microsoft.KeyVault.vaults.keys.write could also be the risk of key leakage. If unauthorized individuals are able to write keys to the Azure Key Vault, they could potentially leak or expose those keys to external parties. This could result in unauthorized access to encrypted data or resources, as well as potential misuse or abuse of the leaked keys.

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Remediation

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Using Console

1. Enable Azure Security Center:
   • Log in to the Azure portal.
   • Search for “Security Center” in the search bar and select the Security Center service.
   • Click on “Pricing & settings” in the left-hand menu.
   • Select the subscription and resource group you want to enable Security Center for.
   • Choose the pricing tier that suits your requirements (Free, Standard, or Standard - Trial).
   • Click on “Apply” to save the changes.
2. Configure Security Policies:
   • In the Azure Security Center, click on “Security policy” in the left-hand menu.
   • Select the subscription and resource group you want to configure the policy for.
   • Click on “Add policy” to create a new policy or select an existing policy to modify.
   • Configure the policy settings according to your security requirements, such as enabling specific security recommendations, setting baseline rules, and defining compliance requirements.
   • Click on “Save” to apply the policy.
3. Monitor and Remediate Security Alerts:
   • In the Azure Security Center, click on “Security alerts” in the left-hand menu.
   • Review the list of security alerts and prioritize them based on severity and impact.
   • Click on an alert to view the details and recommended actions.
   • Follow the recommended steps to remediate the alert, such as applying security patches, updating configurations, or investigating suspicious activities.
   • Once the remediation steps are completed, mark the alert as resolved or closed.

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Using CLI

1. Enable Azure Security Center for your subscription:
   • Run the following command to enable Azure Security Center for your subscription:
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     az security pricing create --name 'Default' --tier 'Standard'
     

2. Configure Azure Security Center recommendations:
   • Use the following command to configure Azure Security Center recommendations:
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     Ask AI

     az security auto-provisioning-setting update --name 'default' --auto-provision 'On'
     

3. Enable Just-In-Time (JIT) VM access:
   • To enable JIT VM access, execute the following command:
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     Ask AI

     az security jit-policy update --name 'default' --resource-group 'your-resource-group' --location 'your-location' --enabled 'true'
     

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Using Python

1. Enable Azure Security Center: Use the Azure SDK for Python to enable Azure Security Center for your Azure subscription. You can use the azure-mgmt-security package to manage security settings programmatically. Here’s an example script:

from azure.identity import DefaultAzureCredential
from azure.mgmt.security import SecurityCenter

# Authenticate using default credentials
credential = DefaultAzureCredential()

# Create a Security Center client
security_center_client = SecurityCenter(
    credential=credential,
    subscription_id="<your-subscription-id>"
)

# Enable Azure Security Center for your subscription
security_center_client.auto_provisioning_settings.create_or_update(
    resource_group_name="<your-resource-group>",
    auto_provisioning_setting_name="<your-setting-name>",
    auto_provisioning_setting={
        "auto_provision": "On"
    }
)

2. Configure Security Policies: Use the azure-mgmt-security package to configure security policies for Azure Security Center. You can define policies to enforce specific security controls and compliance standards. Here’s an example script:

from azure.identity import DefaultAzureCredential
from azure.mgmt.security import SecurityCenter

# Authenticate using default credentials
credential = DefaultAzureCredential()

# Create a Security Center client
security_center_client = SecurityCenter(
    credential=credential,
    subscription_id="<your-subscription-id>"
)

# Configure a security policy
security_center_client.policies.create_or_update(
    resource_group_name="<your-resource-group>",
    policy_name="<your-policy-name>",
    policy={
        "displayName": "My Security Policy",
        "description": "This policy enforces security controls",
        "policyRule": {
            "if": {
                "field": "type",
                "equals": "Microsoft.Compute/virtualMachines"
            },
            "then": {
                "effect": "audit",
                "details": {
                    "type": "AuditIfNotExists",
                    "existenceCondition": {
                        "field": "Microsoft.Compute/virtualMachines/osProfile.linuxConfiguration.ssh.publicKeys[].keyData",
                        "equals": ""
                    }
                }
            }
        }
    }
)

3. Monitor Security Events: Use the azure-mgmt-monitor package to monitor security events in Azure. You can retrieve security event logs and analyze them for potential security issues. Here’s an example script:

from azure.identity import DefaultAzureCredential
from azure.mgmt.monitor import MonitorManagementClient

# Authenticate using default credentials
credential = DefaultAzureCredential()

# Create a Monitor client
monitor_client = MonitorManagementClient(
    credential=credential,
    subscription_id="<your-subscription-id>"
)

# Retrieve security event logs
security_event_logs = monitor_client.activity_logs.list(
    filter="eventTimestamp ge 2022-01-01 and eventTimestamp le 2022-01-31 and category eq 'Security'"
)

# Process security event logs
for log in security_event_logs:
    print(log.event_name.value, log.resource_id, log.event_timestamp)