CVE Vulnerability

CVE-2022-20756

A vulnerability in the RADIUS feature of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to cause the affected system to stop processing RADIUS packets. This vulnerability is due to improper handling of certain RADIUS requests. An attacker could exploit this vulnerability by attempting to authenticate to a network or a service where the access server is using Cisco ISE as the RADIUS server. A successful exploit could allow the attacker to cause Cisco ISE to stop processing RADIUS requests, causing authentication/authorization timeouts, which would then result in legitimate requests being denied access. Note: To recover the ability to process RADIUS packets, a manual restart of the affected Policy Service Node (PSN) is required. See the Details section for more information.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-dos-JLh9TxBp Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch6:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch5:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.4.0:patch12:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch7:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.7.0:patch2:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.7.0.356:patch1:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.0.0:-:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch8:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.4.0:patch13:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.1:-:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.4.0:patch14:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.7.0:patch3:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.7.0:patch4:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch9:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.2.0:patch17:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch10:*:*:*:*:*:*
Information

Published : 2022-04-06 07:15

Updated : 2022-04-14 03:32

NVD link : CVE-2022-20756

Mitre link : CVE-2022-20756

Products Affected
No products.
CWE
NVD-CWE-noinfo