Bad Request for URL During WebUI Login

Products

• Carbon Black EDR (formerly Cb Response)

Issue/Introduction

• Server web login returns HTTP Error "400 Client Error: Bad Request for URL:" and "SAML2/Redirect/SSO"
• /var/log/cb/coreservices/debug.log contains "GET /api/saml/auth?redirect_url=%2F HTTP/1.1" 303"

Environment

• EDR Servers:  All Versions

Cause

Server's time is out of sync with the SSO Provider

Resolution

Server owner will need to resync the time on the EDR server