CVE-2022-20756
Cisco Identity Services Engine RADIUS Service Denial of Service Vulnerability
At a glance
- Source
- NVD
- EPSS
- EPSS 1.46 % · percentile 73 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
Description
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.
Weaknesses (CWE)
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | cisco |
| CVSS 3.1 | HIGH 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | NVD · psirt@cisco.com (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2022-26006
- GCVE · GCVE-0-2022-20756
CERT-FR advisories
- CERTFR-2022-AVI-200 — Multiples vulnérabilités dans les produits Cisco · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:cisco:identity_services_engine:2.2.0:patch17:*:*:*:*:*:*cpe:2.3:a:cisco:identity_services_engine:2.4.0:patch12:*:*:*:*:*:*cpe:2.3:a:cisco:identity_services_engine:2.4.0:patch13:*:*:*:*:*:*cpe:2.3:a:cisco:identity_services_engine:2.4.0:patch14:*:*:*:*:*:*cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch10:*:*:*:*:*:*cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch5:*:*:*:*:*:*cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch6:*:*:*:*:*:*cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch7:*:*:*:*:*:*cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch8:*:*:*:*:*:*cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch9:*:*:*:*:*:*cpe:2.3:a:cisco:identity_services_engine:2.7.0:patch2:*:*:*:*:*:*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:2.7.0.356:patch1:*:*:*:*:*:*cpe:2.3:a:cisco:identity_services_engine:3.0.0:-:*:*:*:*:*:*cpe:2.3:a:cisco:identity_services_engine:3.1:-:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco Identity Services Engine Software | affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |