QID 375602

Date Published: 2021-06-14

QID 375602: Citrix Workspace Privilege Escalation Vulnerability (CTX307794)

Citrix Workspace Suite is a collection of Citrix products that information technology (IT) administrators can use to deliver secure access to desktops, data, applications and services to users on any device, on any network, anywhere.

CVE-2021-22907: Citrix Workspace App is affected with privilege escalation vulnerability

Affected Versions:
Citrix Workspace App prior to 1912 LTSR CU4
Citrix Workspace App prior to 2105

NOTE: Citrix Workspace app downloaded from Windows Store are not affected by this issue.
This vulnerability only exists if Citrix Workspace app was installed using an account with local or domain administrator privileges.

QID Detection Logic
It checks the file versions of SelfService.exe for Workspace App

Successful exploitation of this vulnerability may allow an attacker to escalate their privilege level to that of an administrator on the computer running Citrix Workspace app for Windows.

  • CVSS V3 rated as High - 7.8 severity.
  • CVSS V2 rated as High - 7.2 severity.
    • Solution
    Customers running Citrix Workspace App for Windows versions prior to 1912 LTSR CU4 are advised to update to 1912 LTSR CU4 or later cumulative updates
    Customers running Citrix Workspace App for Windows versions prior to 2105 are advised to update to 2105 or later.
    Vendor References

    CVEs related to QID 375602

    CVE-2021-22907 |
    Software Advisories
    Advisory ID Software Component Link
    CTX307794 WIndows URL Logo support.citrix.com/article/CTX307794
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