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.

An information disclosure vulnerability exists in OneLogin AD Connector versions prior to 6.1.5 via the /api/adc/v4/configuration endpoint. An attacker with access to a valid directory_token—which may be retrievable from host registry keys or improperly secured logs—can retrieve a plaintext response disclosing sensitive credentials. These may include an API key, AWS IAM access and secret keys, and a base64-encoded JWT signing key used in the tenant’s SSO IdP configuration.

The onelogin-saml-sso plugin before 2.2.0 for WordPress has a hardcoded @@@nopass@@@ password for just-in-time provisioned users.

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OneLogin Ruby-SAML 1.6.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.

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OneLogin PythonSAML 2.3.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.

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The Mzone Login (aka com.mr384.MzoneLogin) application 1.2.0 for Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

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