SAML update identity provider
Id | bce1dcba-4948-414d-8838-6385afb9d496 |
Rulename | SAML update identity provider |
Description | Attackers could update the SAML provider in order to create unauthorized but valid tokens and represent them to services that trust SAML tokens from the environment. These tokens can then be used to access resources. More about this API at https://docs.aws.amazon.com/IAM/latest/APIReference/API_UpdateSAMLProvider.html |
Severity | High |
Tactics | Persistence |
Techniques | T1078 |
Required data connectors | AWS |
Kind | Scheduled |
Query frequency | 1d |
Query period | 1d |
Trigger threshold | 0 |
Trigger operator | gt |
Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Amazon Web Services/Analytic Rules/AWS_SAMLUpdateIdentity.yaml |
Version | 1.0.1 |
Arm template | bce1dcba-4948-414d-8838-6385afb9d496.json |
AWSCloudTrail
| where EventName == "UpdateSAMLProvider" and isempty(ErrorCode) and isempty(ErrorMessage)
| extend UserIdentityArn = iif(isempty(UserIdentityArn), tostring(parse_json(Resources)[0].ARN), UserIdentityArn)
| extend UserName = tostring(split(UserIdentityArn, '/')[-1])
| extend AccountName = case( UserIdentityPrincipalid == "Anonymous", "Anonymous", isempty(UserIdentityUserName), UserName, UserIdentityUserName)
| extend AccountName = iif(AccountName contains "@", tostring(split(AccountName, '@', 0)[0]), AccountName),
AccountUPNSuffix = iif(AccountName contains "@", tostring(split(AccountName, '@', 1)[0]), "")
| extend timestamp = TimeGenerated
severity: High
relevantTechniques:
- T1078
requiredDataConnectors:
- dataTypes:
- AWSCloudTrail
connectorId: AWS
status: Available
triggerThreshold: 0
description: |
'Attackers could update the SAML provider in order to create unauthorized but valid tokens and represent them to services that trust SAML tokens from the environment. These tokens can then be used to access resources. More about this API at https://docs.aws.amazon.com/IAM/latest/APIReference/API_UpdateSAMLProvider.html '
triggerOperator: gt
name: SAML update identity provider
queryFrequency: 1d
version: 1.0.1
query: |
AWSCloudTrail
| where EventName == "UpdateSAMLProvider" and isempty(ErrorCode) and isempty(ErrorMessage)
| extend UserIdentityArn = iif(isempty(UserIdentityArn), tostring(parse_json(Resources)[0].ARN), UserIdentityArn)
| extend UserName = tostring(split(UserIdentityArn, '/')[-1])
| extend AccountName = case( UserIdentityPrincipalid == "Anonymous", "Anonymous", isempty(UserIdentityUserName), UserName, UserIdentityUserName)
| extend AccountName = iif(AccountName contains "@", tostring(split(AccountName, '@', 0)[0]), AccountName),
AccountUPNSuffix = iif(AccountName contains "@", tostring(split(AccountName, '@', 1)[0]), "")
| extend timestamp = TimeGenerated
entityMappings:
- entityType: Account
fieldMappings:
- columnName: AccountName
identifier: Name
- columnName: AccountUPNSuffix
identifier: UPNSuffix
- columnName: RecipientAccountId
identifier: CloudAppAccountId
- entityType: IP
fieldMappings:
- columnName: SourceIpAddress
identifier: Address
tactics:
- Persistence
queryPeriod: 1d
kind: Scheduled
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Amazon Web Services/Analytic Rules/AWS_SAMLUpdateIdentity.yaml
id: bce1dcba-4948-414d-8838-6385afb9d496
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"workspace": {
"type": "String"
}
},
"resources": [
{
"apiVersion": "2024-01-01-preview",
"id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/bce1dcba-4948-414d-8838-6385afb9d496')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/bce1dcba-4948-414d-8838-6385afb9d496')]",
"properties": {
"alertRuleTemplateName": "bce1dcba-4948-414d-8838-6385afb9d496",
"customDetails": null,
"description": "'Attackers could update the SAML provider in order to create unauthorized but valid tokens and represent them to services that trust SAML tokens from the environment. These tokens can then be used to access resources. More about this API at https://docs.aws.amazon.com/IAM/latest/APIReference/API_UpdateSAMLProvider.html '\n",
"displayName": "SAML update identity provider",
"enabled": true,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "AccountName",
"identifier": "Name"
},
{
"columnName": "AccountUPNSuffix",
"identifier": "UPNSuffix"
},
{
"columnName": "RecipientAccountId",
"identifier": "CloudAppAccountId"
}
]
},
{
"entityType": "IP",
"fieldMappings": [
{
"columnName": "SourceIpAddress",
"identifier": "Address"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Amazon Web Services/Analytic Rules/AWS_SAMLUpdateIdentity.yaml",
"query": "AWSCloudTrail\n| where EventName == \"UpdateSAMLProvider\" and isempty(ErrorCode) and isempty(ErrorMessage)\n| extend UserIdentityArn = iif(isempty(UserIdentityArn), tostring(parse_json(Resources)[0].ARN), UserIdentityArn)\n| extend UserName = tostring(split(UserIdentityArn, '/')[-1])\n| extend AccountName = case( UserIdentityPrincipalid == \"Anonymous\", \"Anonymous\", isempty(UserIdentityUserName), UserName, UserIdentityUserName)\n| extend AccountName = iif(AccountName contains \"@\", tostring(split(AccountName, '@', 0)[0]), AccountName),\n AccountUPNSuffix = iif(AccountName contains \"@\", tostring(split(AccountName, '@', 1)[0]), \"\")\n| extend timestamp = TimeGenerated\n",
"queryFrequency": "P1D",
"queryPeriod": "P1D",
"severity": "High",
"status": "Available",
"subTechniques": [],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Persistence"
],
"techniques": [
"T1078"
],
"templateVersion": "1.0.1",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}