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@better-auth/sso@1.6.8

SSO plugin for Better Auth

  • latest version

    1.7.1

  • latest non vulnerable version

    1.7.1

  • first published

    1 years ago

  • latest version published

    3 hours ago

  • licenses detected

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    Direct Vulnerabilities

    Known vulnerabilities in the @better-auth/sso package. This does not include vulnerabilities belonging to this package’s dependencies.

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    VulnerabilityVulnerable Version
    • H
    Cross-site Scripting (XSS)

    @better-auth/sso is a SSO plugin for Better Auth

    Affected versions of this package are vulnerable to Cross-site Scripting (XSS) through the SAML login pipeline in packages/sso/src/routes/saml-pipeline.ts. An attacker can sign in as another user by sending a SAML response whose AudienceRestriction, bearer Recipient, or Destination is meant for a different service provider but is still accepted during session creation. This lets the attacker obtain a valid session for the victim account; in affected deployments, that can also grant the victim’s organization privileges if the account is an owner or admin.

    Workarounds

    • Leave saml.enableSingleLogout off unless you need single logout.
    • Prefer pre-validated defaultSSO providers for SAML.

    How to fix Cross-site Scripting (XSS)?

    Upgrade @better-auth/sso to version 1.6.21, 1.7.0-beta.10 or higher.

    <1.6.21>=1.7.0-beta.0 <1.7.0-beta.10
    • H
    Incorrect Authorization

    @better-auth/sso is a SSO plugin for Better Auth

    Affected versions of this package are vulnerable to Incorrect Authorization via the POST /sso/register endpoint, which allows any organization member to attach a new SSO provider without verifying admin or owner privileges. An attacker can gain elevated access by registering a malicious OIDC or SAML provider and triggering organization provisioning through crafted requests.

    How to fix Incorrect Authorization?

    Upgrade @better-auth/sso to version 1.6.11 or higher.

    <1.6.11
    • H
    Server-side Request Forgery (SSRF)

    @better-auth/sso is a SSO plugin for Better Auth

    Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the POST /sso/register and POST /sso/update-provider endpoints when attacker-controlled OIDC endpoint URLs are accepted without proper validation if skipDiscovery: true is set. An attacker can access internal resources or sensitive data by supplying malicious endpoints, leading the server to make requests to arbitrary URLs. If trustEmailVerified: true is enabled and the deployment has accounts with emails overlapping attacker-chosen domains, the attacker can escalate to account takeover by crafting a malicious userInfo response.

    Note: This is only exploitable if the SSO plugin is enabled, the attacker has a valid session, and the application allows registration or update of providers with unvalidated endpoints.

    How to fix Server-side Request Forgery (SSRF)?

    Upgrade @better-auth/sso to version 1.6.11 or higher.

    <1.6.11
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