Home/CVE/An improper access control vulnerability exists in Citrix Workspace App for Windows potentially allows privilege escalat
CVE

CVE-2021-22907

An improper access control vulnerability exists in Citrix Workspace App for Windows potentially allows privilege escalat

An improper access control vulnerability exists in Citrix Workspace App for Windows potentially allows privilege escalation in CR versions prior to 2105 and 1912 LTSR prior to CU4.

HIGH · CVSS 7.8 EPSS 0.00127
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules8 YARA rules0
⬡

Weakness Classification

CWE-284Improper Access Control
▤

Affected Products & Versions

2
citrix workspace< 19.12.4000
citrix workspace< 2105
◈

Sigma Hunt Rules

8
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumGoogle Workspace Out Of Domain Email Forwarding
productmediumGoogle Workspace Government Attack Warning
productmediumGoogle Workspace Role Modified or Deleted
productmediumGoogle Workspace Granted Domain API Access
productmediumGoogle Workspace User Granted Admin Privileges
productmediumGoogle Workspace Application Removed
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · support@hackerone.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD27 May 2021 · 12:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://support.citrix.com/article/CTX307794Vendor Advisory
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