1510
All about cloud security Contacts: @AMark0f @dvyakimov About DevSecOps: @sec_devops
🔷 Mistaken Identity: Extracting Managed Identity Credentials from Azure Function Apps
The article discusses a security vulnerability in Azure Function Apps, where Linux containers use an encrypted startup context file that can be decrypted to expose sensitive data, including Managed Identity certificates.
https://www.netspi.com/blog/technical/cloud-penetration-testing/mistaken-identity-azure-function-apps
#azure
🔶 How to create an AMI hardening pipeline and automate updates to your ECS instance fleet
How to create a workflow to enhance Amazon ECS-optimized AMIs by using the CIS Docker Benchmark and automatically updating your EC2 instances in your ECS cluster with the newly created AMIs.
https://aws.amazon.com/ru/blogs/security/how-to-create-an-ami-hardening-pipeline-and-automate-updates-to-your-ecs-instance-fleet/
#aws
🔷 Spoofing Microsoft Entra ID Verified Publisher Status
It was possible to manipulate the consenting process of a legitimate verified publisher application to implant malicious unverified applications within a Microsoft Entra ID tenant.
https://www.secureworks.com/research/spoofing-microsoft-entra-id-verified-publisher-status
#azure
🔶 Announcing the EKS Cluster Games
Wiz released "The EKS Cluster Games", a cloud security Capture The Flag (CTF) event. The mission? To identify and learn about common Amazon EKS security issues.
https://www.wiz.io/blog/announcing-the-eks-cluster-games
#aws
🔴 Migrating to Google Workspace: Solving Email Routing Challenges
My firsthand experience with migrating from Cloudflare Email Routing to Google Workspace.
https://blog.marcolancini.it/2023/blog-migrate-to-google-workspace/
#gcp
🔶 CloudKeys in the Air: Tracking Malicious Operations of Exposed IAM Keys
PaloAlto analyzes an attack path starting with GitHub IAM exposure and leading to creation of AWS Elastic Compute instances, which TAs used to perform cryptojacking.
https://unit42.paloaltonetworks.com/malicious-operations-of-exposed-iam-keys-cryptojacking/
#aws
🔴 Detect transitive access to sensitive Google Cloud resources
If a user can successfully authenticate as a service account, they gain access to all the IAM permissions associated with that account.
https://p0.dev/blog/transitive-access-gcp
#gcp
🔶 Securing attacks targeted at user or kernel level for customer X with KubeArmor & AWS Bottlerock
The article outlines how KubeArmor and AWS Bottlerocket enhance security in Kubernetes deployments. KubeArmor aids in blocking unwanted binaries and applying granular controls at the container level, while AWS Bottlerocket fortifies host and worker nodes.
https://www.cncf.io/blog/2023/10/26/securing-attacks-targeted-at-user-or-kernel-level-for-customer-x-with-kubearmor-aws-bottlerocket/
#aws
🔴 Cloud CISO Perspectives: How boards can help cyber-crisis communications
Google Cloud CISO Phil Venables talks about the important (and often undervalued) organizational skill of crisis communications.
https://cloud.google.com/blog/products/identity-security/cloud-ciso-perspectives-how-boards-can-help-cyber-crisis-communications/
#gcp
🔷 Everything you need to know about the Microsoft Graph Activity Logs
An introduction on the new Graph APIs that can help incident responders close some visibility gaps.
https://invictus-ir.medium.com/everything-you-need-to-know-about-the-microsoftgraphactivitylogs-5bd7c158dc1c
(Use VPN to open from Russia)
#azure
🔶 What Can Go Wrong When an EC2 Instance is Exposed to SSRF
New CNAPPgoat scenario makes experimentation easy by triggering calls to AWS service from an EC2 instance exposed to SSRF.
https://ermetic.com/blog/cloud/exfiltrated-signed-delivered-what-can-go-wrong-when-an-amazon-elastic-compute-cloud-ec2-instance-is-exposed-to-ssrf/
#aws
🔷 Phishing for Primary Refresh Tokens and Windows Hello keys
Post describing new techniques to phish for Primary Refresh Tokens, and in some scenarios also deploy passwordless credentials that comply with even the strictest MFA policies.
https://dirkjanm.io/phishing-for-microsoft-entra-primary-refresh-tokens/
#azure
🔶 Attacking AWS Cognito with Pacu
Common problems in AWS Cognito security, as seen in client environments, which would benefit from automated scanning and exploitation.
https://rhinosecuritylabs.com/aws/attacking-aws-cognito-with-pacu-p1/
#aws
🔶 Meeting the FedRAMP FIPS 140-2 requirement on AWS
Some ideas for implementing encryption that uses FIPS modules on AWS.
https://alsmola.medium.com/meeting-the-fedramp-fips-140-2-requirement-on-aws-e9886ba3f66b
(Use VPN to open from Russia)
#aws
🔶 5 things you may not know about AWS IAM
SCPs are not inherited like you would expect them to be, resource policies can give permissions by themselves, NotPrincipal evaluation may not do what you expect, a permission can be granted by a combination of statements, KMS grants are like detached resource policy statements.
https://blog.revolve.team/2023/09/21/5-things-about-aws-iam/
#aws
🔴 Introducing Advanced Vulnerability Insights for GKE
Artifact Analysis in partnership with Google Kubernetes Engine has introduced a new vulnerability scanning offering called Advanced Vulnerability Insights.
https://cloud.google.com/blog/products/identity-security/introducing-advanced-vulnerability-insights-for-gke
#gcp
🔷 The Triforce of Initial Access
The article emphasizes that the success of Red Teaming often hinges on the quality of information (loot) gathered and the effectiveness of the tools used, such as Evilginx, ROADtools, and TeamFiltration, complemented by the Bobber script.
https://trustedsec.com/blog/the-triforce-of-initial-access
#azure
🔷 Weather Forecast: Money Is Going to Rain from the Cloud
SafeBreach researchers discovered and exploited a billing flaw in Azure Automation Service, enabling free, hidden, and unstoppable cryptocurrency mining using Python scripts and Runbooks.
https://www.safebreach.com/blog/cryptocurrency-miner-microsoft-azure
#azure
🔶🔴 ApatchMe - Authenticated Stored XSS Vulnerability in AWS and GCP Apache Airflow Services
Unpatched Apache Airflow instances used in AWS and GCP allow an exploitable stored XSS through the task instance details page.
https://www.tenable.com/blog/apatchme-authenticated-stored-xss-vulnerability-in-aws-and-gcp-apache-airflow-services
(Use VPN to open from Russia)
#aws #gcp
🔶 The deputy is confused about AWS Security Hub
The article highlights a potential issue with AWS Security Hub where incorrect AWS account IDs could lead to cross-tenant data pollution, potentially allowing an attacker to pollute someone else's Security Hub.
https://blog.plerion.com/the-deputy-is-confused-about-aws-security-hub/
#aws
🔶 AWS Network Firewall egress filtering can be easily bypassed
If you are thinking of or are already using AWS Network Firewall to control and filter egress traffic to only allow connections to approved destination sites, you need to read this post, as it may not work as you have thought.
https://canglad.com/blog/2023/aws-network-firewall-egress-filtering-can-be-easily-bypassed/
#aws
🔶 Fargate and Cribl (Stream): How We Got It Working
The article discusses deploying Cribl using AWS Fargate to manage log data more effectively, outlining an approach to setting up this infrastructure.
https://floqast.com/engineering-blog/post/fargate-and-cribl-stream-how-we-got-it-working/
#aws
🔷 Exploring the Dark Side of Package Files and Storage Account Abuse
How attackers can abuse the Storage Account's connection string to gain unauthorized access to the Function Apps.
https://3xpl01tc0d3r.blogspot.com/2023/10/exploring-dark-side-of-package-files.html
#azure
🔶 Terraform AWS Provider: Everything you need to know about Multi-Account Authentication and Configuration
Post covering multiple options available to configure the authentication between Terraform and AWS.
https://hector-reyesaleman.medium.com/terraform-aws-provider-everything-you-need-to-know-about-multi-account-authentication-and-f2343a4afd4b
(Use VPN to open from Russia)
#aws
🔶 Adopt Open ID Connect (OIDC) in Terraform for secure multi-account CI/CD to AWS
Deploy to AWS with Terraform and GitHub Actions using Open ID Connect (OIDC) and IAM AssumeRoleWithWebIdentity. Say goodbye to IAM users and long-lived credentials.
https://hedrange.com/2023/10/07/adopt-open-id-connect-oidc-in-terraform-for-secure-multi-account-ci-cd-to-aws/
#aws
🔶 Users of Telegram, AWS, and Alibaba Cloud targeted in latest supply chain attack
Throughout September 2023, an attacker executed a targeted campaign via Pypi to draw developers using Alibaba cloud services, AWS, and Telegram to their malicious packages.
https://checkmarx.com/blog/users-of-telegram-aws-and-alibaba-cloud-targeted-in-latest-supply-chain-attack/
#aws
🔴 Investigate Service Account Key Origins and Usage with Best Practices
Deep dive on investigating service account key origins and usage, including analyzing authentication patterns, monitoring authentication events, and examining service account impersonation and key usage.
https://p0.dev/blog/service-account-key-origins
#gcp
🔶 Following attackers' (Cloud)trail in AWS: Methodology and findings in the wild
Datadog's methodology to proactively identify malicious activity by investigating logs in AWS Cloudtrail.
https://securitylabs.datadoghq.com/articles/following-attackers-trail-in-aws-methodology-findings-in-the-wild/
#aws
🔶 Security Hub gives me imposter syndrome
Chris Farris' take on AWS Security Hub, what's wrong, what's good, and why it's a dangerous service for smaller companies.
https://www.chrisfarris.com/post/securityhub-2023/
#aws
🔶 Introduction to AWS Attribute-Based Access Control
The article provides an introduction to Attribute-Based Access Control (ABAC) in AWS. It explains how ABAC differs from traditional Role-Based Access Control (RBAC) and how to use tags to implement ABAC.
https://research.nccgroup.com/2023/10/02/introduction-to-aws-attribute-based-access-control/
#aws