CVE-2021-22927 : Vulnerability Insights and Analysis

A session fixation vulnerability exists in Citrix ADC and Citrix Gateway 13.0-82.45 when configured SAML service provider that could allow an attacker to hijack a session.

Understanding CVE-2021-22927

This vulnerability affects Citrix ADC and Citrix Gateway, potentially leading to session hijacking.

What is CVE-2021-22927?

It is a session fixation vulnerability in Citrix ADC and Citrix Gateway 13.0-82.45 that allows attackers to take control of sessions.

The Impact of CVE-2021-22927

The vulnerability could be exploited by attackers to hijack user sessions, potentially leading to unauthorized access to sensitive information.

Technical Details of CVE-2021-22927

This section provides more information on the vulnerability.

Vulnerability Description

A session fixation flaw in Citrix ADC and Citrix Gateway 13.0-82.45 can be abused by attackers to compromise sessions.

Affected Systems and Versions

Citrix ADC and Citrix Gateway 13.0-82.45 and later releases of 13.0
Citrix ADC and Citrix Gateway 12.1-62.27 and later releases of 12.1
Citrix ADC and NetScaler Gateway 11.1-65.22 and later releases of 11.1
Citrix ADC 12.1-FIPS 12.1-55.247 and later releases of 12.1-FIPS

Exploitation Mechanism

By targeting the SAML service provider configuration, attackers can exploit this vulnerability to hijack user sessions.

Mitigation and Prevention

Protecting systems from CVE-2021-22927 is essential to ensure security.

Immediate Steps to Take

It is recommended to patch affected systems immediately and monitor for any unusual session activities.

Long-Term Security Practices

Implementing strong session management practices and regularly updating security measures can prevent similar vulnerabilities.

Patching and Updates

Citrix has released patches for the affected versions. Ensure all systems are updated with the latest security fixes.