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Description

A cloud infrastructure misconfiguration in OneLogin AD Connector results in log data being sent to a hardcoded S3 bucket (onelogin-adc-logs-production) without validating bucket ownership. An attacker who registers this unclaimed bucket can begin receiving log files from other OneLogin tenants. These logs may contain sensitive data such as directory tokens, user metadata, and environment configuration. This enables cross-tenant leakage of secrets, potentially allowing JWT signing key recovery and user impersonation.

PUBLISHED Reserved 2025-04-15 | Published 2025-07-01 | Updated 2025-07-01 | Assigner VulnCheck




CRITICAL: 9.0CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N

Problem types

CWE-668 Exposure of Resource to Wrong Sphere

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Product status

Default status
unaffected

Any version before 6.1.5
affected

Credits

SpecterOps finder

References

support.onelogin.com/product-notification/noti-00001768 vendor-advisory patch

specterops.io/...nant-to-compromising-customer-signing-keys/ technical-description

vulncheck.com/...es/onelogin-ad-connector-account-compromise third-party-advisory

cve.org (CVE-2025-34064)

nvd.nist.gov (CVE-2025-34064)

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