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CVE-2025-34063— OneLogin AD Connector JWT Authentication Bypass via Exposed Signing Key

Quick assessment

Affected
One Identity OneLogin Active Directory Connector (ADC)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

One Identity OneLogin AD Connector是美国One Identity公司的一个连接器软件。 One Identity OneLogin AD Connector 6.1.5之前版本存在安全漏洞，该漏洞源于JWT签名密钥泄露导致身份验证绕过。

AI Predicted 9.8 Difficulty: Trivial EPSS 0.61% · P48
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I. Basic Information for CVE-2025-34063

Vulnerability Information
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Vulnerability Title
OneLogin AD Connector JWT Authentication Bypass via Exposed Signing Key
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
One Identity OneLogin AD Connector 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
One Identity OneLogin AD Connector是美国One Identity公司的一个连接器软件。 One Identity OneLogin AD Connector 6.1.5之前版本存在安全漏洞，该漏洞源于JWT签名密钥泄露导致身份验证绕过。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
One Identity OneLogin Active Directory Connector (ADC) 0 ~ 6.1.5 -

II. Public POCs for CVE-2025-34063

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III. Intelligence Information for CVE-2025-34063

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Security Blog Posts for CVE-2025-34063 (1)

Same Patch Batch · One Identity · 2025-07-01 · 3 CVEs total

CVE-2025-34064 OneLogin AD Connector Log S3 Bucket Hijack Leading to Cross-Tenant Data Leakage
CVE-2025-34062 OneLogin AD Connector API Credential and Signing Key Exposure

IV. Related Vulnerabilities

Same product: OneLogin Active Directory Connector (ADC)
Same vendor: One Identity
Same weakness: CWE-290

V. Comments for CVE-2025-34063

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