CVE-2025-34064

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.

Score

CVSS 4.0 9.0 Critical

Status

Deferred - disclosure@vulncheck.com

Published

2025-07-01

Last modified

2025-07-01

Weaknesses

CWE-200, CWE-668

Affected products

• Onelogin Active Directory Connector Adc (One Identity)

References

• https://specterops.io/blog/2025/06/10/onelogin-many-issues-how-i-pivoted-from-a-trial-tenant-to-compromising-customer-s…
• https://support.onelogin.com/product-notification/noti-00001768
• https://vulncheck.com/advisories/onelogin-ad-connector-account-compromise