SARA / Free Tools / CVE / CVE-2023-20243

CVE-2023-20243 — A vulnerability in the RADIUS message processing feature of Cisco Identity Servi

A vulnerability in the RADIUS message processing 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 accoun

CVSS
8.6 HIGH
EPSS
0.38% (top 41.10%)
CWE
CWE-399
Published
2023-09-06T17:01:47.096Z
Last modified
2024-08-02T09:05:36.120Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

01What is this vulnerability?

A vulnerability in the RADIUS message processing 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 accounting requests. An attacker could exploit this vulnerability by sending a crafted authentication request to a network…

02Affected products

VendorProductVersions
CiscoCisco Identity Services Engine Software3.1.0, 3.1.0 p1, 3.1.0 p3, 3.1.0 p4, 3.1.0 p5, 3.1.0 p6, 3.2.0, 3.2.0 p1, 3.2.0 p2

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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