Daily Edition · Page 5

THE DAILY INDEX

Technology, AI, software, security, crypto and business

ATTACKS & VULNERABILITIES

TLDR InfoSec

GATEWAYTOHEAVEN: FINDING A CROSS-TENANT VULNERABILITY IN GCP'S APIGEE

A cross-tenant vulnerability (CVE-2025-13292) discovered in Google Cloud's Apigee allowed attackers to chain SSRF via the GKE metadata endpoint, to escalate privileges via Dataflow JAR poisoning, and to abuse autoscaling to access analytics data across all Apigee tenants, including plaintext OAuth access tokens. The attack exploited shared cross-tenant metadata buckets lacking tenant-specific path isolation and overly permissive service account permissions within tenant projects. Organizations using managed multi-tenant cloud services should audit tenant isolation boundaries, restrict access to metadata endpoints from workloads, and ensure that shared infrastructure components enforce strict per-tenant scoping.

BUILDING SECURITY TO UNLOCK ENGINEERING VELOCITY

Robinhood built SERA (Secure Enhanced Remote Approval), an internal platform that replaces VPN-dependent access approvals with passkey-based biometric authentication, enabling engineers to securely approve requests from any device. The system uses trusted enrollment on corporate devices to bootstrap credentials and then enables flexible remote approvals with tamper-evident audit trails, reducing approval times by over 20%. This approach demonstrates how organizations can reduce friction in security incident response and off-hours workflows without weakening authentication guarantees.

EXPLOITING AWS IAM EVENTUAL CONSISTENCY

AWS is a highly distributed system, which can lead to delays as changes propagate across the system. This is known as eventual consistency. This window can be exploited to recreate deleted or disabled AWS access keys within a nearly four-second window while the changes propagate. Disallow the principal from accessing via an SCP, wait 4 seconds, and then use the standard deletion process to prevent an attacker from exploiting eventual consistency. Other IAM operations, such as policy attachment and detachment, and role assumption, share this vulnerability.

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