CVE-2025-34063 (GCVE-0-2025-34063)

Vulnerability from cvelistv5 – Published: 2025-07-01 14:49 – Updated: 2025-07-01 15:17
VLAI
Title
OneLogin AD Connector JWT Authentication Bypass via Exposed Signing Key
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.
Severity
10 (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
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-01 15:16 UTC
CWE
  • CWE-290 - Authentication Bypass by Spoofing
Assigner
VulnCheck CNA
References
Impacted products
Credits
SpecterOps
Show details on NVD website
To clipboard 

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