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sica-fondt/knowledge/cyber-skills/skills/auditing-aws-s3-bucket-permissions/references/api-reference.md
Claude 24f816b6a3
Consolidate 22 sibling repos into layered organism structure 
Place useful parts of the surrounding repos into sica-fondt by layer, per the
body model (Ada = membrane; brain/endocrine/capabilities/knowledge non-Ada):

- brain/        LLM reasoning + providers (dapr, hermes, MoMoA)
- capabilities/ REPRAG sidecars: hermes tools/skills, dapr tools, parallel
                dispatch, A51 channels, and the OSINT cluster
- knowledge/    LORAG corpus: 754 cyber-skills, agency personas, secure-coding,
                MITRE ATT&CK data
- reference/    defensive threat-reference (C3, shhbruh doc) + AdaYaml parser

License handling: AGPL sources (worldosint, advanced_evolution, mercury,
Reticulum) and GPL DeTTECT are SPEC-only clean-room/port descriptions — no
copyleft code copied. MIT/Apache/data parts copied as working trees.

Safety: shhbruh escape/persistence material and C3 covert-C2 kept as reference
only, not wired into the running organism. See CONSOLIDATION.md.

https://claude.ai/code/session_01UehUqEXXJJCsHoA4voCU5c
2026-06-10 06:53:01 +00:00

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API Reference: Auditing AWS S3 Bucket Permissions

boto3 S3 Client

List Buckets

import boto3
s3 = boto3.client("s3")
response = s3.list_buckets()
for bucket in response["Buckets"]:
    print(bucket["Name"], bucket["CreationDate"])

Get Bucket ACL

acl = s3.get_bucket_acl(Bucket="my-bucket")
for grant in acl["Grants"]:
    print(grant["Grantee"], grant["Permission"])

Get/Put Public Access Block

# Check settings
resp = s3.get_public_access_block(Bucket="my-bucket")
config = resp["PublicAccessBlockConfiguration"]

# Enable all blocks
s3.put_public_access_block(
    Bucket="my-bucket",
    PublicAccessBlockConfiguration={
        "BlockPublicAcls": True,
        "IgnorePublicAcls": True,
        "BlockPublicPolicy": True,
        "RestrictPublicBuckets": True,
    },
)

Get Bucket Policy

import json
policy_str = s3.get_bucket_policy(Bucket="my-bucket")["Policy"]
policy = json.loads(policy_str)
for stmt in policy["Statement"]:
    print(stmt["Effect"], stmt["Principal"], stmt["Action"])

Check Encryption

enc = s3.get_bucket_encryption(Bucket="my-bucket")
rules = enc["ServerSideEncryptionConfiguration"]["Rules"]
print(rules[0]["ApplyServerSideEncryptionByDefault"]["SSEAlgorithm"])

Check Versioning

resp = s3.get_bucket_versioning(Bucket="my-bucket")
print(resp.get("Status", "Disabled"))

Key S3 API Methods for Security Auditing

Method Returns
list_buckets() All buckets in account
get_bucket_acl() ACL grants (AllUsers, AuthenticatedUsers)
get_public_access_block() Block public access configuration
get_bucket_policy() Bucket policy JSON (wildcard principals)
get_bucket_encryption() Default encryption algorithm
get_bucket_versioning() Versioning status
get_bucket_logging() Access logging configuration
get_bucket_location() Bucket region

Public Grant URIs to Flag

URI Risk
http://acs.amazonaws.com/groups/global/AllUsers Public read/write
http://acs.amazonaws.com/groups/global/AuthenticatedUsers Any AWS account

References