The Citrix Workspace app allows for secure, unified access to all of your SaaS apps, web apps, virtual apps, files, and desktops. If your company uses Citrix, simply login with your company credentials to access all of the resources you need to be productive from anywhere. / Downloads / Citrix Workspace App / Earlier Versions of Workspace app for Windows. Citrix Workspace app 1904.1 for Windows.
Set InstantiatedSecurityPolicyEditabledefault to false (See CTX128792 for further details)
Note: Restarting Citrix Workspace app and Receiver is not sufficient to apply the changes, the operating system must be rebooted.
What Customers Should Do
A new version of Citrix Workspace app and Receiver for Windows has been released. Citrix strongly recommends that customers upgrade Citrix Workspace app to version 1904 or later and Receiver for Windows to LTSR 4.9 CU6 version 4.9.6001.
The new Citrix Workspace app version is available from the following Citrix website location:
Rekordbox fx. The new LTSR version is available from the following Citrix website location:
Single Sign-on (SSO) could stop working, after applying the security update, for browsers other than Internet Explorer unless explicitly configured. Use the following documentation to ensure proper configuration post fix installation:
Citrix thanks Ollie Whitehouse, Richard Warren and Martin Hill of NCC Group for working with us to protect Citrix customers.
What Citrix Is Doing
Citrix is notifying customers and channel partners about this potential security issue. This article is also available from the Citrix Knowledge Center at http://support.citrix.com/.
Obtaining Support on This Issue
If you require technical assistance with this issue, please contact Citrix Technical Support. Contact details for Citrix Technical Support are available at https://www.citrix.com/support/open-a-support-case.html.
Reporting Security Vulnerabilities
Citrix welcomes input regarding the security of its products and considers any and all potential vulnerabilities seriously. For guidance on how to report security-related issues to Citrix, please see the following document: CTX081743 – Reporting Security Issues to Citrix
|13th May 2019||Initial publishing|
|17th May 2019||Clarified affected version statement|
|24th May 2019||Added 'Mitigating Factors' section|
- citrix workspace app
objectivethis update is applicable to citrix workspace app 1904 and above
citrix workspace app installer starts certain processes during the installation of the software. citrix workspace app 1904 for windows onwards certain changes have been made to the process handling in the installer. although there is no real impact to end users, certain cases of unattended installation may require modification. this article describes these changes to the citrix workspace app installer.
what changed in the citrix workspace app installer?in all versions of citrix workspace app 1903 and below, the msis which were a part of the installer would initiate various workspace app processes. if for any reason, a particular process was unable to start correctly, the installer fails, and the machine may become unstable. to circumvent such instability, msis do not start processes. instead, the metainstaller (commonly referred to as trolleyexpress) initiates the processes now. this makes sure that the machine does not go into an unstable state.
what is the impact of this change?there should be no impact to end users installing the software. however, if you are attempting unattended installation and waiting for the citrixworkspaceapp.exe to exit, you will require to change the logic. as an example, if you are using the following powershell command to install citrix workspace app, the command will not return even though the software has completed installation –
$t = start-process .citrixworkspaceapp.exe -argumentlist ‘/silent’ -wait -passthru
you will need to modify this command as shown below, which makes sure to wait on the exit code of the metainstallaer –
install citrix workspace windows 2010
$t = start-process -filepath .citrixworkspaceapp.exe -argumentlist ‘/silent’ -passthru -erroraction stop
if($t -ne $null)
wait-process -inputobject $t
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