OSS Bucket Ip Restriction Disabled

• Query id: 6107c530-7178-464a-88bc-df9cdd364ac8
• Query name: OSS Bucket Ip Restriction Disabled
• Platform: Terraform
• Severity: High
• Category: Networking and Firewall
• URL: Github

Description

OSS Bucket should have ip restricted access
Documentation

Code samples

Code samples with security vulnerabilities

Postitive test num. 1 - tf file

resource "alicloud_oss_bucket" "bucket-policy" {
  bucket = "bucket-170309-policy"
  acl    = "private"

  policy = <<POLICY
  {"Statement":
      [{"Action":
          ["oss:PutObject", "oss:GetObject", "oss:DeleteBucket"],
        "Effect":"Allow",
        "Resource":
            ["acs:oss:*:*:*"]}],
   "Version":"1"}
  POLICY
}

Code samples without security vulnerabilities

Negative test num. 1 - tf file

resource "alicloud_oss_bucket" "bucket-securetransport2"{
        policy = <<POLICY
{
        "Version": "1",
        "Statement": 
        [
            {
                "Effect": "Deny",
                "Action": 
                [
                    "oss:RestoreObject",
                    "oss:ListObjects",
                    "oss:AbortMultipartUpload",
                    "oss:PutObjectAcl",
                    "oss:GetObjectAcl",
                    "oss:ListParts",
                    "oss:DeleteObject",
                    "oss:PutObject",
                    "oss:GetObject",
                    "oss:GetVodPlaylist",
                    "oss:PostVodPlaylist",
                    "oss:PublishRtmpStream",
                    "oss:ListObjectVersions",
                    "oss:GetObjectVersion",
                    "oss:GetObjectVersionAcl",
                    "oss:RestoreObjectVersion"
                ],
                "Principal": 
                [
                    "*"
                ],
                "Resource": 
                [
                    "acs:oss:*:0000111122223334:af/*"
                ],
                "Condition": 
                {
                    "IpAdress": 
                    {
                        "acs:SourceIp": "10.0.0.0"
                    }
                }
            }
        ]
}
POLICY
}

Negative test num. 2 - tf file

resource "alicloud_oss_bucket" "bucket-securetransport2"{
        policy = <<POLICY
{
        "Version": "1",
        "Statement": 
        [
            {
                "Effect": "Deny",
                "Action": 
                [
                    "oss:RestoreObject",
                    "oss:ListObjects",
                    "oss:AbortMultipartUpload",
                    "oss:PutObjectAcl",
                    "oss:GetObjectAcl",
                    "oss:ListParts",
                    "oss:DeleteObject",
                    "oss:PutObject",
                    "oss:GetObject",
                    "oss:GetVodPlaylist",
                    "oss:PostVodPlaylist",
                    "oss:PublishRtmpStream",
                    "oss:ListObjectVersions",
                    "oss:GetObjectVersion",
                    "oss:GetObjectVersionAcl",
                    "oss:RestoreObjectVersion"
                ],
                "Principal": 
                [
                    "*"
                ],
                "Resource": 
                [
                    "acs:oss:*:0000111122223334:af/*"
                ],
                "Condition": 
                {
                    "NotIpAdress": 
                    {
                        "acs:SourceIp": "10.0.0.0"
                    }
                }
            }
        ]
}
POLICY

}