CVE-2022-27518 : Unauthenticated remote arbitrary code execution

Products affected by CVE-2022-27518

Citrix » Application Delivery Controller Firmware » Ndcpp Edition
Versions from including (>=) 12.1 and before (<) 12.1-55.291
cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:ndcpp:*:*:*
Matching versions
When used together with: Citrix » Application Delivery Controller » Version: N/A
Citrix » Application Delivery Controller Firmware
Versions from including (>=) 12.1 and before (<) 12.1-65.25
cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Citrix » Application Delivery Controller » Version: N/A
Citrix » Application Delivery Controller Firmware » Fips Edition
Versions from including (>=) 12.1 and before (<) 12.1-55.291
cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:fips:*:*:*
Matching versions
When used together with: Citrix » Application Delivery Controller » Version: N/A
Citrix » Application Delivery Controller Firmware
Versions from including (>=) 13.0 and before (<) 13.0-58.32
cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Citrix » Application Delivery Controller » Version: N/A
Citrix » Gateway Firmware
Versions from including (>=) 12.1 and before (<) 12.1-65.25
cpe:2.3:o:citrix:gateway_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Citrix » Gateway » Version: N/A
Citrix » Gateway Firmware
Versions from including (>=) 13.0 and before (<) 13.0-58.32
cpe:2.3:o:citrix:gateway_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Citrix » Gateway » Version: N/A

CVE-2022-27518 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:

Citrix Application Delivery Controller (ADC) and Gateway Authentication Bypass Vulnerability

CISA required action:

Apply updates per vendor instructions.

CISA description:

Citrix Application Delivery Controller (ADC) and Gateway, when configured with SAML SP or IdP configuration, contain an authentication bypass vulnerability that allows an attacker to execute code as administrator.

Notes:

https://www.citrix.com/blogs/2022/12/13/critical-security-update-now-available-for-citrix-adc-citrix-gateway/; https://nvd.nist.gov/vuln/detail/CVE-2022-27518

Added on 2022-12-13 Action due date 2023-01-03

Exploit prediction scoring system (EPSS) score for CVE-2022-27518

EPSS FAQ

20.30%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 97 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-27518

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	Citrix Systems, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2022-27518

CWE-664 Improper Control of a Resource Through its Lifetime

The product does not maintain or incorrectly maintains control over a resource throughout its lifetime of creation, use, and release.

Assigned by: secure@citrix.com (Secondary)

References for CVE-2022-27518