2212
All about cloud security Contacts: @AMark0f @dvyakimov About DevSecOps: @sec_devops
👩💻 Inside the attack chain: Threat activity targeting Azure Blob Storage
Blog outlining some of the unique threats associated with the data storage layer, including relevant stages of the attack chain for Blob Storage to connect these risks to actionable Azure Security controls and applicable security recommendations.
https://www.microsoft.com/en-us/security/blog/2025/10/20/inside-the-attack-chain-threat-activity-targeting-azure-blob-storage/
#azure
👩💻 Reducing abuse of Microsoft 365 Exchange Online’s Direct Send
Cisco Talos has observed increased activity by malicious actors leveraging Direct Send as part of phishing campaigns. Here's how to strengthen your defenses.
https://blog.talosintelligence.com/reducing-abuse-of-microsoft-365-exchange-onlines-direct-send/
#azure
🔶 Amazon EC2 instance attestation
Learn how to use NitroTPM for attestation to verify the integrity of your EC2 instances.
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/nitrotpm-attestation.html
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#aws
🔶 AWS Transfer Family SFTP connectors now support VPC-based connectivity
AWS Transfer Family SFTP connectors now support VPC-based connectivity, allowing secure file transfers between Amazon S3 and remote SFTP servers through your existing VPC infrastructure without exposing endpoints to the internet.
https://aws.amazon.com/ru/blogs/aws/aws-transfer-family-sftp-connectors-now-support-vpc-based-connectivity/
#aws
🔶 Rubygems.org AWS Root Access Event – September 2025
This post details a September 2025 security incident where a former RubyGems.org maintainer retained AWS root access after removal. Ruby Central discovered unauthorized access, reset credentials, and found no evidence of data compromise.
https://rubycentral.org/news/rubygems-org-aws-root-access-event-september-2025/
#aws
🔶 AWS IAM Identity Center now supports customer-managed KMS keys for encryption at rest
Gain control over encryption and comply with regulations using customer-managed keys for AWS IAM Identity Center's user data and passwords.
https://aws.amazon.com/ru/blogs/aws/aws-iam-identity-center-now-supports-customer-managed-kms-keys-for-encryption-at-rest/
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#aws
🔶 Do you feel in control? Analysis of AWS CloudControl API as an attack tool
Abusing AWS CloudControl API to stealthily enumerate resources, persist in accounts, and evade detection.
https://www.exaforce.com/blogs/feel-in-control-analysis-of-aws-cloudcontrol-api
#aws
🔷🔴 OmniProx
IP Rotation from different providers - Like FireProx but for GCP, Azure, Alibaba and CloudFlare.
https://github.com/ZephrFish/OmniProx
#azure #gcp
🔶 Billing View now supports cost management data from multiple organizations
AWS announced the general availability of new capabilities within AWS Billing and Cost Management that enable customers to manage their AWS spend across multiple organizations through a single AWS account.
https://aws.amazon.com/ru/about-aws/whats-new/2025/09/billing-view-cost-management-multiple-organizations/
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#aws
🔶 Build secure network architectures for generative AI applications using AWS services
Post which reviews the secure network design principles that provide a robust foundation for deploying generative AI applications on AWS while maintaining strong security controls.
https://aws.amazon.com/ru/blogs/security/build-secure-network-architectures-for-generative-ai-applications-using-aws-services/
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#aws
🔴 Strengthen GCE and GKE security with new dashboards powered by Security Command Center
The GCE Security Risk Overview page now shows top security findings, vulnerability findings over time, and common vulnerabilities and exploits (CVEs) on your virtual machines.
https://cloud.google.com/blog/products/identity-security/new-gce-and-gke-dashboards-strengthen-security-posture/
#gcp
🔶 Introducing the AWS Infrastructure Canarytoken
This post introduces AWS Infrastructure Canarytoken, a new free tool that helps deploy decoy AWS resources (DynamoDB, S3, SSM Parameters, etc.) to detect attackers exploring compromised AWS accounts.
https://blog.thinkst.com/2025/09/introducing-the-aws-infrastructure-canarytoken.html
#aws
🔶 Automate OIDC client secret rotation with Application Load Balancer
Elastic Load Balancing simplifies authentication by offloading it to OpenID Connect (OIDC) compatible identity providers (IdPs). This lets builders focus on application logic while using robust identity management.
https://aws.amazon.com/ru/blogs/security/automate-oidc-client-secret-rotation-with-application-load-balancer/
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#aws
🔶🔷🔴 Comparing CSP-Managed Machine Identities
This paper compares the threat models of machine identities managed by the CloudService Providers (CSP-managed) across the three major cloud service providers, with a focus on the risks associated with impersonation and usage.
https://cdn.prod.website-files.com/64e50cbe2b6f932c04238c14/68c18f3c1a686fcdf26e81ac_V_WP_Comparing-CSP-Managed-Machine-Identities_090925_FNL%20(1).pdf
#aws #azure #gcp
👩💻 One Token to rule them all - obtaining Global Admin in every Entra ID tenant via Actor tokens
This article details a critical vulnerability discovered in Entra ID that allowed full tenant compromise through undocumented Actor tokens and a flaw in Azure AD Graph API's tenant validation. Microsoft patched it under CVE-2025-55241.
https://dirkjanm.io/obtaining-global-admin-in-every-entra-id-tenant-with-actor-tokens/
#azure
🔶 ECS on EC2: Covering Gaps in IMDS Hardening
The article discusses securing ECS on EC2 by blocking IMDS access. IMDSv2 with hop limit 1 only blocks access in bridge mode but not in awsvpc or host modes. Different networking modes require specific configurations to protect against privilege escalation attacks like ECScape.
https://www.latacora.com/blog/2025/10/02/ecs-on-ec2-covering-gaps-in-imds-hardening/
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#aws
👩💻 CoPhish: Using Microsoft Copilot Studio as a wrapper for OAuth phishing
Copilot Studio links look benign, but they can host content to redirect users to arbitrary URLs. In this post, Datadog documents a method by which a Copilot Studio agent's login settings can redirect a user to any URL, including an OAuth consent attack.
https://securitylabs.datadoghq.com/articles/cophish-using-microsoft-copilot-studio-as-a-wrapper/
#azure
🔶 Introducing Amazon EBS Volume Clones: Create instant copies of your EBS volumes
AWS launched Amazon EBS Volume Clones, a new capability that allows users to create instant point-in-time copies of EBS volumes within the same Availability Zone with a single API call, eliminating the previous multi-step process of taking snapshots and creating volumes from them.
https://aws.amazon.com/ru/blogs/aws/introducing-amazon-ebs-volume-clones-create-instant-copies-of-your-ebs-volumes/
#aws
👩💻 Remove Passwords from Microsoft Entra ID
Password scrambling guidance to deploy passwordless and phishing-resistant authentication for organizations that use Microsoft Entra ID.
https://learn.microsoft.com/en-us/entra/identity/authentication/how-to-plan-password-scramble-phishing-resistant-passwordless-authentication
#azure
🔶 New AWS whitepaper: Security Overview of Amazon EKS Auto Mode
The whitepaper covers the core security principles of Amazon EKS Auto Mode, highlighting its unique approach to managing Kubernetes clusters.
https://aws.amazon.com/ru/blogs/security/new-aws-whitepaper-security-overview-of-amazon-eks-auto-mode/
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#aws
🔴 Announcing quantum-safe Key Encapsulation Mechanisms in Cloud KMS
GCP now supports post-quantum Key Encapsulation Mechanisms in Cloud KMS, in preview, enabling customers to begin migrating to a post-quantum world.
https://cloud.google.com/blog/products/identity-security/announcing-quantum-safe-key-encapsulation-mechanisms-in-cloud-kms/
#gcp
🔶 Crimson Collective: A New Threat Group Observed Operating in the Cloud
Rapid7 has observed increased activity of a new threat group attacking AWS cloudenvironments, Crimson Collective, who recently claimed to have stolen private repositories from Red Hat's GitLab.
https://www.rapid7.com/blog/post/tr-crimson-collective-a-new-threat-group-observed-operating-in-the-cloud/
#aws
🔶🔷🔴 tokenex
A Go library that securely exchanges identity tokens for temporary cloud credentials, with built-in support for AWS, GCP, Azure, OCI, Kubernetes, and OAuth2. You can also refer to the companion blog post.
https://github.com/riptideslabs/tokenex
#aws #azure #gcp
🔶 How to develop an AWS Security Hub POC
This article guides you through planning and implementing an AWS Security Hub proof of concept, covering value assessment, success criteria definition, configuration, deployment, and validation steps.
https://aws.amazon.com/ru/blogs/security/how-to-develop-an-aws-security-hub-poc/
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#aws
🔶 How to accelerate security finding reviews using automated business context validation in AWS Security Hub
A structured workflow where security teams define acceptable compensating controls, developers implement them, and an automated system validates their effectiveness.
https://aws.amazon.com/ru/blogs/security/how-to-accelerate-security-finding-reviews-using-automated-business-context-validation-in-aws-security-hub/
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#aws
🔶 IMDS Abused: Hunting Rare Behaviors to Uncover Exploits
This post is about how Wiz used a data-driven methodology to uncover and stop anomalous IMDS usage, and how that approach led them to discover a zero-day vulnerability being exploited in the wild in a popular web service.
https://www.wiz.io/blog/imds-anomaly-hunting-zero-day
#aws
🔶 Adding Determinism and Safety to Uber IAM Policy Changes
Uber's production environment relies on a complex network of microservices and assets governed by IAM policies. Managing these policies effectively without disrupting production is challenging, as highlighted by an incident where an accidental IAM policy change caused Uber Eats outages. To address this, Uber introduced a Policy Simulator tool that allows policy authors to preview the impact of proposed changes in real time.
https://www.uber.com/en-GB/blog/adding-determinism-and-safety-to-uber-iam-policy-changes/
#aws
🔶 Multi-Region keys: A new approach to key replication in AWS Payment Cryptography
The new Multi-Region key replication feature in Payment Cryptography enhances automatic key replication capabilities, providing improved resilience and simplified management for global payment applications.
https://aws.amazon.com/ru/blogs/security/multi-region-keys-a-new-approach-to-key-replication-in-aws-payment-cryptography/
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#aws
👩💻 Illicit Consent-Granting & App Backdooring – Obtaining persistence in Entra
This article details how attackers exploit Entra ID through OAuth consent injection and app backdooring, covering attack flows, MITRE ATT&CK mappings, detection strategies, and prevention methods for securing consent flows.
https://www.slashid.dev/blog/entra-app-backdooring/
#azure
👩💻 Azure mandatory multifactor authentication: Phase 2 starting in October 2025
Multifactor enforcement for Azure Portal sign-ins was rolled out for 100% of Azure tenants in March 2025. Now, Azure is announcing the start of Phase 2 MFA enforcement at the Azure Resource Manager layer, starting October 1, 2025.
https://azure.microsoft.com/en-us/blog/azure-mandatory-multifactor-authentication-phase-2-starting-in-october-2025/
#azure