CVE-2025-34063 (GCVE-0-2025-34063)
Vulnerability from cvelistv5
Published
2025-07-01 14:49
Modified
2025-07-01 15:17
Severity ?
10.0 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CWE
  • CWE-290 - Authentication Bypass by Spoofing
Summary
A cryptographic authentication bypass vulnerability exists in OneLogin AD Connector prior to 6.1.5 due to the exposure of a tenant’s SSO JWT signing key via the /api/adc/v4/configuration endpoint. An attacker in possession of the signing key can craft valid JWT tokens impersonating arbitrary users within a OneLogin tenant. The tokens allow authentication to the OneLogin SSO portal and all downstream applications federated via SAML or OIDC. This allows full unauthorized access across the victim’s SaaS environment.
References
disclosure@vulncheck.comhttps://specterops.io/blog/2025/06/10/onelogin-many-issues-how-i-pivoted-from-a-trial-tenant-to-compromising-customer-signing-keys/
disclosure@vulncheck.comhttps://support.onelogin.com/product-notification/noti-00001768
disclosure@vulncheck.comhttps://vulncheck.com/advisories/onelogin-ad-connector-account-compromise
Impacted products
Vendor Product Version
One Identity OneLogin Active Directory Connector (ADC) Version: 0   ≤
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