> For the complete documentation index, see [llms.txt](https://newdocs.keeper.io/en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://newdocs.keeper.io/en/release-notes/enterprise/sso-connect/sso-connect-on-prem-17.0.2.md).

# SSO Connect On-Prem 17.1.2

This release delivers critical security remediation for SAML authentication bypass vulnerabilities, hardens the administrative interface against unauthorized access, and removes unnecessary dependencies to reduce the attack surface. No configuration changes are required for administrators.

#### What’s New <a href="#whats-new" id="whats-new"></a>

* Strengthened SAML signature validation to bind cryptographic verification to the assertion it covers, closing a signature relocation bypass that survived the 17.1.1 fix.
* Hardened administrative interface authentication to prevent unauthenticated configuration changes via the SSO Connect admin port.
* Removed the keycloak-services dependency (100+ transitives eliminated) to minimize CVE exposure and reduce distribution footprint.
* Added account-switching session token passthrough for Vault Web integration.
* Keycloak SAML dependency version updated to maintain alignment with the current release line.

#### Security & Bug Fixes <a href="#security-and-bug-fixes" id="security-and-bug-fixes"></a>

* **KSC-524** — SAML authentication bypass via signature relocation vulnerability mitigated by enforcing that each assertion's signature cryptographically covers the assertion it is attached to. The exploit path was validated, remediated, and regression-tested across ADFS, Okta, and Entra ID configurations.
* **KSC-518** — Administrative interface authentication bypass mitigated by correcting the session validation ordering. Previously, an unauthenticated attacker with network access to the admin port could overwrite SSO Connect configuration. The fix ensures authentication is validated before session state is updated.

  No admin-side configuration updates are required.

  We recommend validating SSO sign-in with your IdP (Okta, Entra ID, ADFS, Ping, Keycloak) in a non-production environment prior to production rollout.

#### Compatibility & Upgrade Notes <a href="#compatibility-and-upgrade-notes" id="compatibility-and-upgrade-notes"></a>

* No admin-side configuration updates are required.
* We recommend validating SSO sign-in with your IdP (Okta, Entra ID, ADFS, Ping, Keycloak) in a non-production environment prior to production rollout.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://newdocs.keeper.io/en/release-notes/enterprise/sso-connect/sso-connect-on-prem-17.0.2.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.