CloudSec Wine
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All about cloud security

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🔶 Simulating Ransomware with AWS KMS

Post that demonstrates how attackers can abuse AWS KMS by importing malicious key material to encrypt RDS/EBS resources, then deleting the material to make data inaccessible without ransom payment.

https://heilancoos.github.io/research/2025/09/02/aws-kms-ransomware.html

#aws
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🔶 Locking down AWS principal tags with RCPs and SCPs

A post explaining how to use SCPs to restrict sensitive IAM actions to tagged principals, RCPs to block unauthorized "scp-*" session tags from external/non-tagger principals, and SCPs to protect the "tagger" role itself via CloudFormation StackSets.

https://awsteele.com/blog/2026/02/21/locking-down-aws-principal-tags-with-rcps-and-scps.html

#aws
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🔴 Remote Command Execution in Google Cloud with Single Directory Deletion - GMO Flatt Security Research

A race condition in Google Cloud Looker's directory deletion API allows deleting the ".git" directory while concurrent Git operations proceed, causing Git to use attacker-controlled worktree configs for RCE. Kubernetes service account misconfigurations further enabled cross-instance privilege escalation.

https://flatt.tech/research/posts/remote-command-execution-in-google-cloud-with-single-directory-deletion

#gcp
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👨‍💻 Widespread GitHub Campaign Uses Fake VS Code Security Alerts to Deliver Malware

A large-scale phishing campaign is targeting developers directly inside GitHub, using fake Visual Studio Code security alerts posted through Discussions to trick users into installing malicious software.

https://socket.dev/blog/widespread-github-campaign-uses-fake-vs-code-security-alerts-to-deliver-malware

#github
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📤 Threat Actors Abuse Railway.com PaaS as Microsoft 365 Token Attack Infrastructure

Railway PaaS is being weaponized as a clean token replay engine in an active AiTM and device code phishing campaign impacting 268+ M365 organizations and 100+ MSPs.

https://www.huntress.com/blog/railway-paas-m365-token-replay-campaign

#PaaS
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🔴 Double Agents: Exposing Security Blind Spots in GCP Vertex AI

Unit 42 researchers found that GCP Vertex AI Agent Engine's default P4SA service account has excessive permissions, enabling credential theft via the metadata service. This allows privilege escalation to read all consumer GCS buckets, access restricted Google-internal Artifact Registry container images, and expose internal source code.

https://unit42.paloaltonetworks.com/double-agents-vertex-ai

#gcp
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🔶 Enforcing AI Governance Across AWS Organizations

Learn how to enforce AI governance across AWS organizations using Bedrock guardrails, MCP server controls, model availability rules, and API restrictions to reduce risk and improve security.

https://sonraisecurity.com/enforcing-ai-governance-across-aws-orgs

#aws
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🔶 aws-preflight

Check your AWS CLI commands for security risks before you run them.

https://github.com/gabrielPav/aws-preflight

#aws
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🔶 AWS Security Agent on-demand penetration testing now generally available

AWS Security Agent on-demand penetration testing is now GA, offering autonomous 24/7 multi-cloud pen testing combining SAST, DAST, and context-aware agentic AI.

https://aws.amazon.com/ru/blogs/security/aws-security-agent-on-demand-penetration-testing-now-generally-available/

#aws
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🤖 How Command Injection Vulnerability in OpenAI Codex Leads to GitHub Token Compromise

BeyondTrust Phantom Labs recently identified a critical command injection vulnerability in OpenAI Codex that allowed for the theft of GitHub User Access Tokens.

https://www.beyondtrust.com/blog/entry/openai-codex-command-injection-vulnerability-github-token

#AI
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🔶 Unexpected Routing Behaviour in AWS with VPC Peering and NAT Gateway

When routing VPC peering traffic through an internal NAT gateway in AWS, response traffic bypasses route tables via connection tracking, making all subnets in the peered VPC reachable even without return routes configured. AWS confirmed this is "expected behaviour.".

https://labs.reversec.com/posts/2026/03/unexpected-routing-behaviour-in-aws-with-vpc-peering-and-nat-gateway

#aws
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🔶 Launching S3 Files, making S3 buckets accessible as file system

Amazon S3 Files makes S3 buckets accessible as high-performance file systems on AWS compute resources, eliminating the tradeoff between object storage benefits and interactive file capabilities while enabling seamless data sharing with ~1ms latencies.

https://aws.amazon.com/ru/blogs/aws/launching-s3-files-making-s3-buckets-accessible-as-file-systems

#aws
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🔶 Amazon S3 starts rolling out new security best practice to new and existing buckets by default

S3 is now deploying a new default bucket security setting which will automatically disable server-side encryption with customer-provided keys (SSE-C) for all new general purpose buckets.

https://aws.amazon.com/ru/about-aws/whats-new/2026/04/s3-default-bucket-security-setting

#aws
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🤖 NomShub: Weaponizing Cursor's Remote Tunnel Through Indirect Prompt Injection and Sandbox Breakout

NomShub is a critical vulnerability chain in the Cursor AI code editor where a malicious repository can silently hijack a developer's machine, combining indirect prompt injection, a sandbox escape via shell builtins, and Cursor's built-in remote tunnel to give attackers persistent, undetected shell access triggered simply by opening a repo.

https://www.straiker.ai/blog/nomshub-cursor-remote-tunneling-sandbox-breakout

#AI
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