S3 Bucket Versioning Suspended

Severity: low
Log types: AWS.CloudTrail
Tags: AWS, Defense Evasion, Impact:Data Destruction
Reference: https://docs.aws.amazon.com/AmazonS3/latest/userguide/Versioning.html
Source: github.com/panther-labs/panther-analysis

Detects when S3 bucket versioning is suspended or disabled, which removes the ability to recover previous versions of objects and is a common precursor to ransomware attacks or data destruction.

MITRE ATT&CK coverage

Tactic	Techniques
Stealth	`T1562` Impair Defenses
Impact	`T1485` Data Destruction

Rules detecting the same action

Other rules on this platform that filter on the same API call or operation.

AWS S3 Bucket Versioning Disable (Sigma)
AWS S3 Object Versioning Suspended (Elastic)
AWS S3 Security Control Disabling (Panther)
S3 MFA Delete Disabled (Panther)

Rule body yaml

AnalysisType: rule
Filename: aws_s3_suspend_versioning.py
RuleID: "AWS.S3.SuspendVersioning"
DisplayName: "S3 Bucket Versioning Suspended"
Enabled: true
CreateAlert: false
LogTypes:
  - AWS.CloudTrail
Tags:
  - AWS
  - Defense Evasion
  - Impact:Data Destruction
Reports:
  MITRE ATT&CK:
    - TA0005:T1562
    - TA0040:T1485
Severity: Low
Description: Detects when S3 bucket versioning is suspended or disabled, which removes the ability to recover previous versions of objects and is a common precursor to ransomware attacks or data destruction.
Runbook: |
  1. Query CloudTrail for all S3 API calls by the userIdentity:arn on the requestParameters:bucketName in the 24 hours before and after versioning was suspended
  2. Find any DeleteObject or DeleteObjects events on this bucket in the 6 hours after versioning was suspended to detect potential data destruction attempts
  3. Search for other security control changes (DisableBucketLogging, DisableMfaDelete, DeleteBucketEncryption) on the same bucket in the past 7 days to identify coordinated attack patterns
Reference: https://docs.aws.amazon.com/AmazonS3/latest/userguide/Versioning.html
SummaryAttributes:
  - sourceIpAddress
  - userAgent
  - recipientAccountId
  - p_any_aws_arns
Tests:
  - Name: Versioning Suspended Successfully
    ExpectedResult: true
    Log:
      {
        "eventVersion": "1.08",
        "userIdentity":
          {
            "type": "AssumedRole",
            "principalId": "AAAAAAAAAAAAAAAAAAAAA:user_name",
            "arn": "arn:aws:sts::111111111111:assumed-role/sample-role-dreamy-yonath/sample-role-brave-yalow-role-intelligent-brahmagupta-role-beautiful-keldysh-role-happy-easley-role-bold-buck",
            "accountId": "111111111111",
            "accessKeyId": "ASIA-MOCKACCESSKEYID-1",
            "sessionContext":
              {
                "attributes":
                  {
                    "mfaAuthenticated": "false",
                    "creationDate": "2024-01-15T10:30:00Z",
                  },
                "sessionIssuer":
                  {
                    "type": "Role",
                    "principalId": "AAAAAAAAAAAAAAAAAAAAA",
                    "arn": "arn:aws:iam::111111111111:role/sample-role-dreamy-yonath",
                    "accountId": "111111111111",
                    "userName": "AdminRole",
                  },
              },
          },
        "eventTime": "2024-01-15T10:45:23Z",
        "eventSource": "s3.amazonaws.com",
        "eventName": "PutBucketVersioning",
        "awsRegion": "us-east-1",
        "sourceIPAddress": "1.2.3.4",
        "userAgent": "aws-cli/2.13.0 Python/3.11.4 Linux/5.10.0-1234-aws exe/x86_64.ubuntu.22",
        "requestParameters":
          {
            "bucketName": "important-files-bucket",
            "host": "sample-bucket-lucid-jang.s3.amazonaws.com",
            "VersioningConfiguration":
              {
                "Status": "Suspended",
              },
          },
        "responseElements": null,
        "requestID": "ABC123DEF456",
        "eventID": "12345678-1234-1234-1234-111111111111",
        "readOnly": false,
        "eventType": "AwsApiCall",
        "managementEvent": true,
        "recipientAccountId": "111111111111",
        "vpcEndpointId": "vpce-1a2b3c4d",
      }
  - Name: Versioning Disabled Successfully
    ExpectedResult: true
    Log:
      {
        "eventVersion": "1.08",
        "userIdentity":
          {
            "type": "AssumedRole",
            "principalId": "AAAAAAAAAAAAAAAAAAAAA:user_name",
            "arn": "arn:aws:sts::111111111111:assumed-role/sample-role-dreamy-yonath/sample-role-brave-yalow-role-intelligent-brahmagupta-role-beautiful-keldysh-role-happy-easley-role-bold-buck",
            "accountId": "111111111111",
            "accessKeyId": "ASIA-MOCKACCESSKEYID-1",
            "sessionContext":
              {
                "attributes":
                  {
                    "mfaAuthenticated": "false",
                    "creationDate": "2024-01-15T10:30:00Z",
                  },
                "sessionIssuer":
                  {
                    "type": "Role",
                    "principalId": "AAAAAAAAAAAAAAAAAAAAA",
                    "arn": "arn:aws:iam::111111111111:role/sample-role-dreamy-yonath",
                    "accountId": "111111111111",
                    "userName": "AdminRole",
                  },
              },
          },
        "eventTime": "2024-01-15T10:45:23Z",
        "eventSource": "s3.amazonaws.com",
        "eventName": "PutBucketVersioning",
        "awsRegion": "us-east-1",
        "sourceIPAddress": "1.2.3.4",
        "userAgent": "aws-cli/2.13.0 Python/3.11.4 Linux/5.10.0-1234-aws exe/x86_64.ubuntu.22",
        "requestParameters":
          {
            "bucketName": "important-files-bucket",
            "host": "sample-bucket-lucid-jang.s3.amazonaws.com",
            "VersioningConfiguration":
              {
                "Status": "Disabled",
              },
          },
        "responseElements": null,
        "requestID": "ABC123DEF456",
        "eventID": "12345678-1234-1234-1234-111111111111",
        "readOnly": false,
        "eventType": "AwsApiCall",
        "managementEvent": true,
        "recipientAccountId": "111111111111",
        "vpcEndpointId": "vpce-1a2b3c4d",
      }
  - Name: Versioning Change Failed
    ExpectedResult: false
    Log:
      {
        "eventVersion": "1.08",
        "userIdentity":
          {
            "type": "IAMUser",
            "principalId": "AIDAI23HXS4EXAMPLE",
            "arn": "arn:aws:iam::111111111111:user/testuser",
            "accountId": "111111111111",
            "accessKeyId": "AKIA-MOCKACCESSKEYID-1",
          },
        "eventTime": "2024-01-15T10:45:23Z",
        "eventSource": "s3.amazonaws.com",
        "eventName": "PutBucketVersioning",
        "awsRegion": "us-east-1",
        "sourceIPAddress": "1.2.3.4",
        "userAgent": "aws-cli/2.13.0 Python/3.11.4 Linux/5.10.0-1234-aws exe/x86_64.ubuntu.22",
        "errorCode": "AccessDenied",
        "errorMessage": "Access Denied",
        "requestParameters":
          {
            "bucketName": "important-files-bucket",
            "host": "sample-bucket-lucid-jang.s3.amazonaws.com",
            "VersioningConfiguration":
              {
                "Status": "Suspended",
              },
          },
        "responseElements": null,
        "requestID": "ABC123DEF456",
        "eventID": "12345678-1234-1234-1234-111111111111",
        "readOnly": false,
        "eventType": "AwsApiCall",
        "managementEvent": true,
        "recipientAccountId": "111111111111",
      }
  - Name: Versioning Enabled
    ExpectedResult: false
    Log:
      {
        "eventVersion": "1.08",
        "userIdentity":
          {
            "type": "AssumedRole",
            "principalId": "AAAAAAAAAAAAAAAAAAAAA:user_name",
            "arn": "arn:aws:sts::111111111111:assumed-role/sample-role-dreamy-yonath/sample-role-brave-yalow-role-intelligent-brahmagupta-role-beautiful-keldysh-role-happy-easley-role-bold-buck",
            "accountId": "111111111111",
            "accessKeyId": "ASIA-MOCKACCESSKEYID-1",
          },
        "eventTime": "2024-01-15T10:45:23Z",
        "eventSource": "s3.amazonaws.com",
        "eventName": "PutBucketVersioning",
        "awsRegion": "us-east-1",
        "sourceIPAddress": "1.2.3.4",
        "userAgent": "aws-cli/2.13.0 Python/3.11.4 Linux/5.10.0-1234-aws exe/x86_64.ubuntu.22",
        "requestParameters":
          {
            "bucketName": "important-files-bucket",
            "host": "sample-bucket-lucid-jang.s3.amazonaws.com",
            "VersioningConfiguration":
              {
                "Status": "Enabled",
              },
          },
        "responseElements": null,
        "requestID": "ABC123DEF456",
        "eventID": "12345678-1234-1234-1234-111111111111",
        "readOnly": false,
        "eventType": "AwsApiCall",
        "managementEvent": true,
        "recipientAccountId": "111111111111",
      }
  - Name: Different S3 Event
    ExpectedResult: false
    Log:
      {
        "eventVersion": "1.08",
        "userIdentity":
          {
            "type": "AssumedRole",
            "principalId": "AAAAAAAAAAAAAAAAAAAAA:user_name",
            "arn": "arn:aws:sts::111111111111:assumed-role/sample-role-dreamy-yonath/sample-role-brave-yalow-role-intelligent-brahmagupta-role-beautiful-keldysh-role-happy-easley-role-bold-buck",
            "accountId": "111111111111",
            "accessKeyId": "ASIA-MOCKACCESSKEYID-1",
          },
        "eventTime": "2024-01-15T10:45:23Z",
        "eventSource": "s3.amazonaws.com",
        "eventName": "DeleteBucketEncryption",
        "awsRegion": "us-east-1",
        "sourceIPAddress": "1.2.3.4",
        "userAgent": "aws-cli/2.13.0 Python/3.11.4 Linux/5.10.0-1234-aws exe/x86_64.ubuntu.22",
        "requestParameters":
          {
            "bucketName": "important-files-bucket",
            "host": "sample-bucket-lucid-jang.s3.amazonaws.com",
          },
        "responseElements": null,
        "requestID": "ABC123DEF456",
        "eventID": "12345678-1234-1234-1234-111111111111",
        "readOnly": false,
        "eventType": "AwsApiCall",
        "managementEvent": true,
        "recipientAccountId": "111111111111",
      }
  - Name: Non-S3 Event
    ExpectedResult: false
    Log:
      {
        "eventVersion": "1.08",
        "userIdentity":
          {
            "type": "AssumedRole",
            "principalId": "AAAAAAAAAAAAAAAAAAAAA:user_name",
            "arn": "arn:aws:sts::123456789012:assumed-role/AdminRole/user_name",
            "accountId": "123456789012",
            "accessKeyId": "ASIAIOSFODNN7EXAMPLE",
          },
        "eventTime": "2024-01-15T10:45:23Z",
        "eventSource": "ec2.amazonaws.com",
        "eventName": "PutBucketVersioning",
        "awsRegion": "us-east-1",
        "sourceIPAddress": "203.0.113.42",
        "userAgent": "aws-cli/2.13.0 Python/3.11.4 Linux/5.10.0-1234-aws exe/x86_64.ubuntu.22",
        "requestParameters": {},
        "responseElements": null,
        "requestID": "ABC123DEF456",
        "eventID": "12345678-1234-1234-1234-123456789012",
        "readOnly": false,
        "eventType": "AwsApiCall",
        "managementEvent": true,
        "recipientAccountId": "123456789012",
      }

Detection logic

Condition

not (errorCode is_not_null or errorMessage is_not_null)
eventSource eq "s3.amazonaws.com"
eventName eq "PutBucketVersioning"
requestParameters.VersioningConfiguration.Status in ["Suspended", "Disabled"]

Exclusions

Top-level NOT(...) conjuncts: predicates this rule actively suppresses.

Field	Kind	Excluded values
`errorCode`	is_not_null	(no value, null check)
`errorMessage`	is_not_null	(no value, null check)

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

Field	Kind	Values
`eventName`	eq	`PutBucketVersioning`
`eventSource`	eq	`s3.amazonaws.com`
`requestParameters.VersioningConfiguration.Status`	in	`Disabled` `Suspended`

Output fields

Fields the rule emits when it matches. Chronicle authors list these in the outcome block; they appear on the detection and $risk_score drives alerting. Sentinel / Defender XDR rules build them up through project / summarize / extend stages. Sentinel maps these into alert fields via entityMappings and customDetails; Defender XDR custom detections surface them as alert fields directly.

Field	Source
`eventName`
`eventSource`
`awsRegion`
`recipientAccountId`
`sourceIPAddress`
`userAgent`
`userIdentity`
`actor_user`
`bucketName`	`requestParameters.bucketName`

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`-op:val`	Exclude matches; works on most operators but not `type:`/`like:`/`has:`/`no:` (use `no:<flag>` to exclude a rule flag): `tactic:execution -vendor:splunk`. Standalone `-kind:`/`-field:`/`-value:` drop every rule carrying a matching predicate leaf (`type:rules -kind:is_null`)
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`"quoted phrase"`	Exact-match a multi-word phrase (free text)