Denial of service via malformed HTTP/2 requests in NetScaler ADC and NetScaler Gateway if HTTP/2 is enabled in HTTP Profile and associated with the virtual server (of type LB, CS, VPN) or the service configured on NetScaler
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 7
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Citrix Netscaler_Application_Delivery_Controller
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*
|
— |
13.1-37.272
|
|
Citrix Netscaler_Application_Delivery_Controller
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*
|
— |
13.1-37.272
|
|
Citrix Netscaler_Application_Delivery_Controller
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
|
13.1
|
13.1-63.18
|
|
Citrix Netscaler_Application_Delivery_Controller
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
|
14.1
|
14.1-72.61
|
|
Citrix Netscaler_Application_Delivery_Controller
cpe:2.3:a:citrix:netscaler_application_delivery_controller:14.1-66.68:*:*:*:fips:*:*:*
|
— | — |
|
Citrix Netscaler_Gateway
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*
|
13.1
|
13.1-63.18
|
|
Citrix Netscaler_Gateway
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*
|
14.1
|
14.1-72.61
|