Vulnerability Details : CVE-2022-20937
A vulnerability in a feature that monitors RADIUS requests on Cisco Identity Services Engine (ISE) Software could allow an unauthenticated, remote attacker to negatively affect the performance of an affected device.
This vulnerability is due to insufficient management of system resources. An attacker could exploit this vulnerability by taking actions that cause Cisco ISE Software to receive specific RADIUS traffic. A successful and sustained exploit of this vulnerability could allow the attacker to cause reduced performance of the affected device, resulting in significant delays to RADIUS authentications.
There are workarounds that address this vulnerability.
Exploit prediction scoring system (EPSS) score for CVE-2022-20937
Probability of exploitation activity in the next 30 days: 0.13%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 47 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2022-20937
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
3.9
|
1.4
|
NIST |
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
3.9
|
1.4
|
Cisco Systems, Inc. |
CWE ids for CVE-2022-20937
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: nvd@nist.gov (Primary)
-
The product's resource pool is not large enough to handle peak demand, which allows an attacker to prevent others from accessing the resource by using a (relatively) large number of requests for resources.Assigned by: ykramarz@cisco.com (Secondary)
References for CVE-2022-20937
-
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-sec-atk-dos-zw5RCUYp
Cisco Identity Services Engine Software Resource Exhaustion Vulnerability
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-sec-atk-dos-zw5RCUYp
Vendor Advisory
Products affected by CVE-2022-20937
- cpe:2.3:a:cisco:identity_services_engine:*:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:identity_services_engine:2.7.0:-:*:*:*:*:*:*
- cpe:2.3:a:cisco:identity_services_engine:2.7.0:patch2:*:*:*:*:*:*
- cpe:2.3:a:cisco:identity_services_engine:3.0.0:-:*:*:*:*:*:*
- cpe:2.3:a:cisco:identity_services_engine:3.0.0:patch1:*:*:*:*:*:*
- cpe:2.3:a:cisco:identity_services_engine:3.0.0:patch2:*:*:*:*:*:*
- cpe:2.3:a:cisco:identity_services_engine:2.7.0:patch1:*:*:*:*:*:*
- 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:3.0.0:patch3:*:*:*:*:*:*
- cpe:2.3:a:cisco:identity_services_engine:2.7.0:patch5:*:*:*:*:*:*
- cpe:2.3:a:cisco:identity_services_engine:2.7.0:patch6:*:*:*:*:*:*
- cpe:2.3:a:cisco:identity_services_engine:3.0.0:patch4:*:*:*:*:*:*
- cpe:2.3:a:cisco:identity_services_engine:3.1:-:*:*:*:*:*:*
- cpe:2.3:a:cisco:identity_services_engine:3.1:patch1:*:*:*:*:*:*
- cpe:2.3:a:cisco:identity_services_engine:2.7.0:patch7:*:*:*:*:*:*
- cpe:2.3:a:cisco:identity_services_engine:3.0.0:patch5:*:*:*:*:*:*
- cpe:2.3:a:cisco:identity_services_engine:3.1:patch3:*:*:*:*:*:*