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🛡️ AWS S3 Bucket Policy is not set to deny HTTP requests🟢

Logic​

Similar Policies​

Similar Internal Rules​

RulePoliciesFlags
✉️ dec-x-d5fbfc401

Description​

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Description​

At the Amazon S3 bucket level, you can configure permissions through a bucket policy making the objects accessible only through HTTPS.

Rationale​

By default, Amazon S3 allows both HTTP and HTTPS requests. To achieve only allowing access to Amazon S3 objects through HTTPS you also have to explicitly deny access to HTTP requests. Bucket policies that allow HTTPS requests without explicitly denying HTTP requests will not comply with this recommendation.

Audit​

To allow access to HTTPS, you can use a bucket policy with the effect allow and a condition that checks for the key "aws:SecureTransport": "true". This means that HTTPS requests are allowed, but it does not deny HTTP requests. To explicitly deny HTTP access, ensure that there is also a bucket policy with the effect deny that contains the key "aws:SecureTransport": "false". You may also require TLS by setting a policy to deny any version lower than the one you wish to require, using the condition NumericLessThan and the key "s3:TlsVersion": "1.2".

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Remediation​

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Remediation​

From Console​

  1. Login to AWS Management Console and open the Amazon S3 console using https://console.aws.amazon.com/s3/
  2. Select the Check box next to the Bucket.
  3. Click on Permissions.
  4. Click Bucket Policy.
  5. Add either of the following to the existing policy, filling in the required information:
{
     "Sid": "<optional>",
     "Effect": "Deny",
     "Principal": "*",
     "Action": "s3:*",
     "Resource": "arn:aws:s3:::<bucket_name>/*",
     "Condition": {
        "Bool": {
            "aws:SecureTransport": "false"
        }
    }
}

or

{
    "Sid": "<optional>",
    "Effect": "Deny",
    "Principal": "*",
    "Action": "s3:*",
    "Resource": [
        "arn:aws:s3:::<bucket_name>",
        "arn:aws:s3:::<bucket_name>/*"
    ],
    "Condition": {
        "NumericLessThan": {
            "s3:TlsVersion": "1.2"
        }
    }
}
  1. Save.
  2. Repeat for all the buckets in your AWS account that contain sensitive data.

From Console using AWS Policy Generator​

  1. Repeat steps 1-4 above.
  2. Click on Policy Generator at the bottom of the Bucket Policy Editor.

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policy.yaml​

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Linked Framework Sections​

SectionSub SectionsInternal RulesPoliciesFlagsCompliance
💼 APRA CPG 234 → 💼 54 Cryptographic techniques can be used to control access to sensitive data, both in storage and in transit. The strength of the cryptographic techniques deployed would be commensurate with the sensitivity and criticality of the data as well as other supplementary or compensating controls (refer to Attachment E for further guidance).2122no data
💼 AWS Foundational Security Best Practices v1.0.0 → 💼 [S3.5] S3 general purpose buckets should require requests to use SSL11no data
💼 AWS Well-Architected → 💼 SEC09-BP03 Authenticate network communications3no data
💼 CIS AWS v1.3.0 → 💼 2.1.2 Ensure S3 Bucket Policy allows HTTPS requests11no data
💼 CIS AWS v1.4.0 → 💼 2.1.2 Ensure S3 Bucket Policy is set to deny HTTP requests11no data
💼 CIS AWS v1.5.0 → 💼 2.1.2 Ensure S3 Bucket Policy is set to deny HTTP requests - Level 2 (Automated)11no data
💼 CIS AWS v2.0.0 → 💼 2.1.1 Ensure S3 Bucket Policy is set to deny HTTP requests - Level 2 (Automated)11no data
💼 CIS AWS v3.0.0 → 💼 2.1.1 Ensure S3 Bucket Policy is set to deny HTTP requests - Level 2 (Automated)11no data
💼 CIS AWS v4.0.0 → 💼 2.1.1 Ensure S3 Bucket Policy is set to deny HTTP requests (Automated)1no data
💼 CIS AWS v4.0.1 → 💼 2.1.1 Ensure S3 Bucket Policy is set to deny HTTP requests (Automated)1no data
💼 CIS AWS v5.0.0 → 💼 2.1.1 Ensure S3 Bucket Policy is set to deny HTTP requests (Automated)1no data
💼 CIS AWS v6.0.0 → 💼 3.1.1 Ensure S3 Bucket Policy is set to deny HTTP requests (Automated)1no data
💼 Cloudaware Framework → 💼 Data Encryption57no data
💼 FedRAMP High Security Controls → 💼 AC-3 Access Enforcement (L)(M)(H)3772no data
💼 FedRAMP High Security Controls → 💼 AC-4 Information Flow Enforcement (M)(H)23789no data
💼 FedRAMP High Security Controls → 💼 AC-4(4) Flow Control of Encrypted Information (H)2627no data
💼 FedRAMP High Security Controls → 💼 AC-17(2) Protection of Confidentiality and Integrity Using Encryption (M)(H)18no data
💼 FedRAMP High Security Controls → 💼 IA-5(1) Password-based Authentication (L)(M)(H)19no data
💼 FedRAMP High Security Controls → 💼 SC-7 Boundary Protection (L)(M)(H)10864no data
💼 FedRAMP High Security Controls → 💼 SC-7(4) External Telecommunications Services (M)(H)35no data
💼 FedRAMP High Security Controls → 💼 SC-8 Transmission Confidentiality and Integrity (L)(M)(H)1820no data
💼 FedRAMP High Security Controls → 💼 SC-8(1) Cryptographic Protection (L)(M)(H)819no data
💼 FedRAMP High Security Controls → 💼 SC-13 Cryptographic Protection (L)(M)(H)1634no data
💼 FedRAMP High Security Controls → 💼 SC-23 Session Authenticity (M)(H)716no data
💼 FedRAMP Low Security Controls → 💼 AC-3 Access Enforcement (L)(M)(H)72no data
💼 FedRAMP Low Security Controls → 💼 IA-5(1) Password-based Authentication (L)(M)(H)9no data
💼 FedRAMP Low Security Controls → 💼 SC-7 Boundary Protection (L)(M)(H)40no data
💼 FedRAMP Low Security Controls → 💼 SC-8 Transmission Confidentiality and Integrity (L)(M)(H)120no data
💼 FedRAMP Low Security Controls → 💼 SC-8(1) Cryptographic Protection (L)(M)(H)19no data
💼 FedRAMP Low Security Controls → 💼 SC-13 Cryptographic Protection (L)(M)(H)34no data
💼 FedRAMP Moderate Security Controls → 💼 AC-3 Access Enforcement (L)(M)(H)72no data
💼 FedRAMP Moderate Security Controls → 💼 AC-4 Information Flow Enforcement (M)(H)173no data
💼 FedRAMP Moderate Security Controls → 💼 AC-17(2) Protection of Confidentiality and Integrity Using Encryption (M)(H)18no data
💼 FedRAMP Moderate Security Controls → 💼 IA-5(1) Password-based Authentication (L)(M)(H)9no data
💼 FedRAMP Moderate Security Controls → 💼 SC-7 Boundary Protection (L)(M)(H)753no data
💼 FedRAMP Moderate Security Controls → 💼 SC-7(4) External Telecommunications Services (M)(H)35no data
💼 FedRAMP Moderate Security Controls → 💼 SC-8 Transmission Confidentiality and Integrity (L)(M)(H)120no data
💼 FedRAMP Moderate Security Controls → 💼 SC-8(1) Cryptographic Protection (L)(M)(H)19no data
💼 FedRAMP Moderate Security Controls → 💼 SC-13 Cryptographic Protection (L)(M)(H)34no data
💼 FedRAMP Moderate Security Controls → 💼 SC-23 Session Authenticity (M)(H)16no data
💼 ISO/IEC 27001:2013 → 💼 A.10.1.1 Policy on the use of cryptographic controls1819no data
💼 ISO/IEC 27001:2013 → 💼 A.14.1.2 Securing application services on public networks55no data
💼 ISO/IEC 27001:2013 → 💼 A.14.1.3 Protecting application services transactions1015no data
💼 ISO/IEC 27001:2022 → 💼 5.14 Information transfer810no data
💼 NIST CSF v1.1 → 💼 DE.AE-1: A baseline of network operations and expected data flows for users and systems is established and managed1034no data
💼 NIST CSF v1.1 → 💼 DE.CM-1: The network is monitored to detect potential cybersecurity events1863no data
💼 NIST CSF v1.1 → 💼 ID.AM-3: Organizational communication and data flows are mapped48no data
💼 NIST CSF v1.1 → 💼 PR.AC-5: Network integrity is protected (e.g., network segregation, network segmentation)1044no data
💼 NIST CSF v1.1 → 💼 PR.DS-2: Data-in-transit is protected1653no data
💼 NIST CSF v1.1 → 💼 PR.DS-5: Protections against data leaks are implemented4791no data
💼 NIST CSF v1.1 → 💼 PR.DS-6: Integrity checking mechanisms are used to verify software, firmware, and information integrity2227no data
💼 NIST CSF v1.1 → 💼 PR.IP-1: A baseline configuration of information technology/industrial control systems is created and maintained incorporating security principles (e.g. concept of least functionality)426no data
💼 NIST CSF v1.1 → 💼 PR.PT-3: The principle of least functionality is incorporated by configuring systems to provide only essential capabilities2130no data
💼 NIST CSF v1.1 → 💼 PR.PT-4: Communications and control networks are protected1044no data
💼 NIST CSF v2.0 → 💼 DE.CM-01: Networks and network services are monitored to find potentially adverse events150no data
💼 NIST CSF v2.0 → 💼 DE.CM-09: Computing hardware and software, runtime environments, and their data are monitored to find potentially adverse events149no data
💼 NIST CSF v2.0 → 💼 ID.AM-03: Representations of the organization's authorized network communication and internal and external network data flows are maintained76no data
💼 NIST CSF v2.0 → 💼 PR.AA-06: Physical access to assets is managed, monitored, and enforced commensurate with risk44no data
💼 NIST CSF v2.0 → 💼 PR.DS-01: The confidentiality, integrity, and availability of data-at-rest are protected164no data
💼 NIST CSF v2.0 → 💼 PR.DS-02: The confidentiality, integrity, and availability of data-in-transit are protected140no data
💼 NIST CSF v2.0 → 💼 PR.DS-10: The confidentiality, integrity, and availability of data-in-use are protected156no data
💼 NIST CSF v2.0 → 💼 PR.IR-01: Networks and environments are protected from unauthorized logical access and usage103no data
💼 NIST SP 800-53 Revision 4 → 💼 CM-7 (1) PERIODIC REVIEW34no data
💼 NIST SP 800-53 Revision 4 → 💼 CM-7 LEAST FUNCTIONALITY567no data
💼 NIST SP 800-53 Revision 4 → 💼 SC-7 BOUNDARY PROTECTION23531no data
💼 NIST SP 800-53 Revision 4 → 💼 SC-8 TRANSMISSION CONFIDENTIALITY AND INTEGRITY422no data
💼 NIST SP 800-53 Revision 5 → 💼 AC-4 Information Flow Enforcement326999no data
💼 NIST SP 800-53 Revision 5 → 💼 AC-4(2) Information Flow Enforcement _ Processing Domains3133no data
💼 NIST SP 800-53 Revision 5 → 💼 AC-4(15) Information Flow Enforcement _ Detection of Unsanctioned Information910no data
💼 NIST SP 800-53 Revision 5 → 💼 AC-17(2) Remote Access _ Protection of Confidentiality and Integrity Using Encryption1218no data
💼 NIST SP 800-53 Revision 5 → 💼 IA-5(1) Authenticator Management _ Password-based Authentication9no data
💼 NIST SP 800-53 Revision 5 → 💼 SC-7(4) Boundary Protection _ External Telecommunications Services35no data
💼 NIST SP 800-53 Revision 5 → 💼 SC-8 Transmission Confidentiality and Integrity5819no data
💼 NIST SP 800-53 Revision 5 → 💼 SC-8(1) Transmission Confidentiality and Integrity _ Cryptographic Protection818no data
💼 NIST SP 800-53 Revision 5 → 💼 SC-8(2) Transmission Confidentiality and Integrity _ Pre- and Post-transmission Handling10no data
💼 NIST SP 800-53 Revision 5 → 💼 SC-12(3) Cryptographic Key Establishment and Management _ Asymmetric Keys7no data
💼 NIST SP 800-53 Revision 5 → 💼 SC-13 Cryptographic Protection423no data
💼 NIST SP 800-53 Revision 5 → 💼 SC-23 Session Authenticity510no data
💼 NIST SP 800-53 Revision 5 → 💼 SC-23(3) Session Authenticity _ Unique System-generated Session Identifiers9no data
💼 NIST SP 800-53 Revision 5 → 💼 SI-7(6) Software, Firmware, and Information Integrity _ Cryptographic Protection20no data
💼 PCI DSS v3.2.1 → 💼 2.2.4 Configure system security parameters to prevent misuse.16no data
💼 PCI DSS v3.2.1 → 💼 4.1 Use strong cryptography and security protocols to safeguard sensitive cardholder data during transmission over open, public networks.1825no data
💼 PCI DSS v3.2.1 → 💼 8.2.1 Using strong cryptography, render all authentication credentials unreadable during transmission and storage on all system components.14no data
💼 PCI DSS v4.0.1 → 💼 2.2.6 System security parameters are configured to prevent misuse.16no data
💼 PCI DSS v4.0.1 → 💼 4.2.1 Strong cryptography and security protocols are implemented to safeguard PAN during transmission over open, public networks.225no data
💼 PCI DSS v4.0.1 → 💼 8.3.2 Strong cryptography is used to render all authentication factors unreadable during transmission and storage on all system components.14no data
💼 PCI DSS v4.0 → 💼 2.2.6 System security parameters are configured to prevent misuse.1216no data
💼 PCI DSS v4.0 → 💼 4.2.1 Strong cryptography and security protocols are implemented to safeguard PAN during transmission over open, public networks.2925no data
💼 PCI DSS v4.0 → 💼 8.3.2 Strong cryptography is used to render all authentication factors unreadable during transmission and storage on all system components.614no data
💼 SOC 2 → 💼 CC6.1-8 Manages Identification and Authentication1824no data