Document Title:
Citrix Gateway & Cloud - Session Validation Vulnerability


Security Video: (Cloud)

Security Video: (OnPrem)


Vulnerability Magazine:

Release Date:

Vulnerability Laboratory ID (VL-ID):

Common Vulnerability Scoring System:

Vulnerability Class:
Insufficient Session Validation

Current Estimated Price:
2.000€ - 3.000€

Abstract Advisory Information:
The vulnerability laboratory core research team discovered a web vulnerability in the official Citrix Gateway (ADC/NetScaler) 13.0 & 13.1 web-application, Cloud and AAA Feature.

Vulnerability Disclosure Timeline:
2023-07-03: Public Disclosure (Vulnerability Laboratory)

Discovery Status:

Exploitation Technique:

Severity Level:

Authentication Type:
Restricted Authentication (User Privileges)

User Interaction:
No User Interaction

Disclosure Type:
Responsible Disclosure

Technical Details & Description:
An insufficient session validation web vulnerability was discovered in the Citrix Gateway (ADC/NetScaler) 13.0 & 13.1 web-application, Cloud and AAA Feature.
The security vulnerability allows remote attackers to bypass the mfa function by hijacking the session data of an active user (non expired session) to followup 
with further compromising attacks.

Credits & Authors:
Lars Guenther -
Benjamin Mejri (Kunz) -

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