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CVE-2025-34064

OneLogin AD Connector Log S3 Bucket Hijack Leading to Cross-Tenant Data Leakage

Published: Jul 1, 2025Updated: Jul 3, 2025 Sources: CVE List NVD BDUCWE-200
NVD MITRE
9.3CVSSCRITICAL
EPSS Score
0.4%
Top 64.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LC:HI:LA:N
Exploitability
AV:NAccess Vector
Network
AC:LAccess Complexity
Low
Impact
C:HConfidentiality
H
I:LIntegrity
L
A:NAvailability
None
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Weaknesses

CWE-200CWE-668

Affected Products

OneLogin Active Directory Connector (ADC)One Identity
Mixed
Security Products / identity-access-mgmt
OneLogin AD ConnectorOne Identity
Mixed
Security Products / identity-access-mgmt
one identitycommercialSecurity Productsaka oneidentity

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
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References

https://specterops.io/blog/2025/06/10/onelogin-many-issues-how-i-pivoted-from-a-trial-tenant-to-compromising-customer-signing-keys/
specterops.io
https://support.onelogin.com/product-notification/noti-00001768
support.onelogin.com
https://vulncheck.com/advisories/onelogin-ad-connector-account-compromise
vulncheck.com
and 1 more references View all →

Timeline

Published
Jul 1, 2025
Last Updated
Jul 3, 2025

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