If you are running Citrix Gateway and Citrix ADC, stop what you are doing and read this post. Please reach out to Cornerstone.IT with any questions. We are a Citrix Gold partner with decades of Citrix experience.
Severity
Critical
Issue
- Unauthorized access to Gateway user capabilities
- Remote desktop takeover via phishing
- User login brute force protection functionality bypass
Impacted Products
- Citrix ADC
- Citrix Gateway
Description
| CVE-ID | Description | CWE | Affected Products | Pre-Conditions |
| CVE-2022-27510 | Unauthorized access to Gateway user capabilities | CWE-288: Authentication Bypass Using an Alternate Path or Channel | Citrix Gateway, Citrix ADC | Appliance must be configured as a VPN (Gateway) |
| CVE-2022-27513 | Remote desktop takeover via phishing | CWE-345: Insufficient Verification of Data Authenticity | Citrix Gateway, Citrix ADC | Appliance must be configured as a VPN (Gateway) and the RDP proxy functionality must be configured |
| CVE-2022-27516 | User login brute force protection functionality bypass | CWE-693: Protection Mechanism Failure | Citrix Gateway, Citrix ADC | Appliance must be configured as a VPN (Gateway) OR AAA virtual server and the user lockout functionality “Max Login Attempts” must be configured |
The following supported versions of Citrix ADC and Citrix Gateway are affected by this vulnerability:
- Citrix ADC and Citrix Gateway 13.1 before 13.1-33.47
- Citrix ADC and Citrix Gateway 13.0 before 13.0-88.12
- Citrix ADC and Citrix Gateway 12.1 before 12.1.65.21
- Citrix ADC 12.1-FIPS before 12.1-55.289
- Citrix ADC 12.1-NDcPP before 12.1-55.289
Mitigation
Affected customers of Citrix ADC and Citrix Gateway are recommended to install the relevant updated versions of Citrix ADC or Citrix Gateway as soon as possible:
- Unauthorized access to Gateway user capabilities
- Remote desktop takeover via phishing
- User login brute force protection functionality bypass
- Citrix ADC and Citrix Gateway 13.1-33.47 and later releases
- Citrix ADC and Citrix Gateway 13.0-88.12 and later releases of 13.0
- Citrix ADC and Citrix Gateway 12.1-65.21 and later releases of 12.1
- Citrix ADC 12.1-FIPS 12.1-55.289 and later releases of 12.1-FIPS
- Citrix ADC 12.1-FIPS 12.1-55.289 and later releases of 12.1-FIPS
- Citrix ADC 12.1-NDcPP 12.1-55.289 and later releases of 12.1-NDcPP
Please note that Citrix ADC and Citrix Gateway versions prior to 12.1 are EOL and customers on those versions are recommended to upgrade to one of the supported versions.
Contact Cornerstone.IT with any questions or assistance regarding these updates.
Published: 11/8/2022