# Trovent Security Advisory 2203-01 # ##################################### Micro Focus GroupWise transmits session ID in URL ################################################# Overview ######## Advisory ID: TRSA-2203-01 Advisory version: 1.0 Advisory status: Public Advisory URL: https://trovent.io/security-advisory-2203-01 Affected product: Micro Focus GroupWise Affected version: prior to 18.4.2 Vendor: Micro Focus, https://www.microfocus.com Credits: Trovent Security GmbH, Stefan Pietsch Detailed description #################### Micro Focus GroupWise is a messaging software for email and personal information management. Trovent Security GmbH discovered that the GroupWise web application transmits the session ID in HTTP GET requests in the URL when email content is accessed. The exposed session ID can be recorded in the browser history of the client and in log files of the web server or reverse proxy server. A possible attacker with access to the browser history or the server log files is able to take control of the user session with the help of the session ID. Severity: Medium CVSS Score: 4.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N) CVE ID: CVE-2022-38756 CWE ID: CWE-598 Proof of concept ################ Simplified HTTP request: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GET /attachment?session=<SESSIONID>&id=... HTTP/1.1 Host: <HOSTNAME> ... X-User-Agent: GroupWise Web (18.4.0-139604) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Solution / Workaround ##################### The vendor released a fixed version of GroupWise. Fixed in version 18.4.2. History ####### 2022-03-30: Vulnerability found 2022-08-05: Vendor contacted 2022-10-31: Contacted vendor again 2022-11-01: Vendor replied that the vulnerability will be investigated 2022-11-14: Vendor contacted, asking for status 2022-11-16: Vendor replied that a security bulletin is being prepared 2022-12-06: Vendor published security bulletin 2023-01-27: Advisory published