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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 communications1no 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 Encryption44no data
💼 FedRAMP High Security Controls → 💼 AC-3 Access Enforcement (L)(M)(H)3768no data
💼 FedRAMP High Security Controls → 💼 AC-4 Information Flow Enforcement (M)(H)23681no data
💼 FedRAMP High Security Controls → 💼 AC-4(4) Flow Control of Encrypted Information (H)2526no data
💼 FedRAMP High Security Controls → 💼 AC-17(2) Protection of Confidentiality and Integrity Using Encryption (M)(H)17no data
💼 FedRAMP High Security Controls → 💼 IA-5(1) Password-based Authentication (L)(M)(H)18no data
💼 FedRAMP High Security Controls → 💼 SC-7 Boundary Protection (L)(M)(H)10850no data
💼 FedRAMP High Security Controls → 💼 SC-7(4) External Telecommunications Services (M)(H)28no data
💼 FedRAMP High Security Controls → 💼 SC-8 Transmission Confidentiality and Integrity (L)(M)(H)1817no data
💼 FedRAMP High Security Controls → 💼 SC-8(1) Cryptographic Protection (L)(M)(H)816no data
💼 FedRAMP High Security Controls → 💼 SC-13 Cryptographic Protection (L)(M)(H)1624no data
💼 FedRAMP High Security Controls → 💼 SC-23 Session Authenticity (M)(H)713no data
💼 FedRAMP Low Security Controls → 💼 AC-3 Access Enforcement (L)(M)(H)68no data
💼 FedRAMP Low Security Controls → 💼 IA-5(1) Password-based Authentication (L)(M)(H)8no data
💼 FedRAMP Low Security Controls → 💼 SC-7 Boundary Protection (L)(M)(H)35no data
💼 FedRAMP Low Security Controls → 💼 SC-8 Transmission Confidentiality and Integrity (L)(M)(H)117no data
💼 FedRAMP Low Security Controls → 💼 SC-8(1) Cryptographic Protection (L)(M)(H)16no data
💼 FedRAMP Low Security Controls → 💼 SC-13 Cryptographic Protection (L)(M)(H)24no data
💼 FedRAMP Moderate Security Controls → 💼 AC-3 Access Enforcement (L)(M)(H)68no data
💼 FedRAMP Moderate Security Controls → 💼 AC-4 Information Flow Enforcement (M)(H)166no data
💼 FedRAMP Moderate Security Controls → 💼 AC-17(2) Protection of Confidentiality and Integrity Using Encryption (M)(H)17no data
💼 FedRAMP Moderate Security Controls → 💼 IA-5(1) Password-based Authentication (L)(M)(H)8no data
💼 FedRAMP Moderate Security Controls → 💼 SC-7 Boundary Protection (L)(M)(H)744no data
💼 FedRAMP Moderate Security Controls → 💼 SC-7(4) External Telecommunications Services (M)(H)28no data
💼 FedRAMP Moderate Security Controls → 💼 SC-8 Transmission Confidentiality and Integrity (L)(M)(H)117no data
💼 FedRAMP Moderate Security Controls → 💼 SC-8(1) Cryptographic Protection (L)(M)(H)16no data
💼 FedRAMP Moderate Security Controls → 💼 SC-13 Cryptographic Protection (L)(M)(H)24no data
💼 FedRAMP Moderate Security Controls → 💼 SC-23 Session Authenticity (M)(H)13no 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 events145no data
💼 NIST CSF v2.0 → 💼 DE.CM-09: Computing hardware and software, runtime environments, and their data are monitored to find potentially adverse events142no data
💼 NIST CSF v2.0 → 💼 ID.AM-03: Representations of the organization's authorized network communication and internal and external network data flows are maintained69no 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 protected148no data
💼 NIST CSF v2.0 → 💼 PR.DS-02: The confidentiality, integrity, and availability of data-in-transit are protected125no data
💼 NIST CSF v2.0 → 💼 PR.DS-10: The confidentiality, integrity, and availability of data-in-use are protected142no data
💼 NIST CSF v2.0 → 💼 PR.IR-01: Networks and environments are protected from unauthorized logical access and usage95no 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 Enforcement326891no data
💼 NIST SP 800-53 Revision 5 → 💼 AC-4(2) Information Flow Enforcement _ Processing Domains3032no 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 Encryption1217no data
💼 NIST SP 800-53 Revision 5 → 💼 IA-5(1) Authenticator Management _ Password-based Authentication8no data
💼 NIST SP 800-53 Revision 5 → 💼 SC-7(4) Boundary Protection _ External Telecommunications Services28no data
💼 NIST SP 800-53 Revision 5 → 💼 SC-8 Transmission Confidentiality and Integrity5816no data
💼 NIST SP 800-53 Revision 5 → 💼 SC-8(1) Transmission Confidentiality and Integrity _ Cryptographic Protection815no data
💼 NIST SP 800-53 Revision 5 → 💼 SC-8(2) Transmission Confidentiality and Integrity _ Pre- and Post-transmission Handling7no data
💼 NIST SP 800-53 Revision 5 → 💼 SC-12(3) Cryptographic Key Establishment and Management _ Asymmetric Keys6no data
💼 NIST SP 800-53 Revision 5 → 💼 SC-13 Cryptographic Protection413no data
💼 NIST SP 800-53 Revision 5 → 💼 SC-23 Session Authenticity57no data
💼 NIST SP 800-53 Revision 5 → 💼 SC-23(3) Session Authenticity _ Unique System-generated Session Identifiers6no data
💼 NIST SP 800-53 Revision 5 → 💼 SI-7(6) Software, Firmware, and Information Integrity _ Cryptographic Protection12no 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.1822no 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.222no 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.2922no 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