QID 317139

Date Published: 2022-03-03

QID 317139: Cisco Identity Services Engine (ISE) RADIUS Service Denial of Service (DoS) Vulnerability (cisco-sa-ise-dos-JLh9TxBp)

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.

Affected version:
From 2.4 Prior to 2.6P11
From 2.7 Prior to 2.7P6
From 3.0 Prior to 3.0P5
From 3.1 Prior to 3.1P1
QID Detection Logic (Authenticated):
The check matches the Cisco ISE version and ise_patch retrieved via Unix Auth using "show version" command.

Note: This QID does not check if TACAS is used in Cisco ISE. Hence QID kept as Practice.

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.

  • CVSS V3 rated as Critical - 8.6 severity.
  • CVSS V2 rated as High - 7.8 severity.
    • Solution

    Customers are advised to refer to cisco-sa-ise-dos-JLh9TxBp for more information.

    Vendor References

    CVEs related to QID 317139

    CVE-2022-20756 |
    Software Advisories
    Advisory ID Software Component Link
    cisco-sa-ise-dos-JLh9TxBp URL Logo tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-dos-JLh9TxBp
    By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].