Authentication bypass via exposed JWT signing key
Published Jul 1, 2025 · Updated Jul 1, 2025
Authentication bypass in OneLogin Active Directory Connector before 6.1.5 allows remote attackers to impersonate arbitrary tenant users. The /api/adc/v4/configuration endpoint returns the tenant's base64-encoded SSO JWT signing key to requests carrying a directory token, enabling forged JWTs. Possession of a directory token is required to retrieve the key; a forged token then grants access to the SSO portal and federated SAML or OIDC applications.
Summary
What happened
Authentication bypass in OneLogin Active Directory Connector before 6.1.5 allows remote attackers to impersonate arbitrary tenant users. The /api/adc/v4/configuration endpoint returns the tenant's base64-encoded SSO JWT signing key to requests carrying a directory token, enabling forged JWTs. Possession of a directory token is required to retrieve the key; a forged token then grants access to the SSO portal and federated SAML or OIDC applications.
The record
- CVE
- CVE-2025-34063
- Published
- Jul 1, 2025
- Updated
- Jul 1, 2025
- Vendor
- One Identity
- Product
- OneLogin Active Directory Connector
- Classifications
- CWE-290, CAPEC-115, T1606
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 1, 2025CVE publishedPublication date reported by the CVE source.
- Jul 1, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <6.1.5
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- OneLogin JWT forgery procedurefunctional · demonstrated
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Technologies
Your stack
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Your stack
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