Cisco Identity Services Engine RADIUS Service denial of service

CVE编号

CVE-2022-20756

利用情况

暂无

补丁情况

N/A

披露时间

2022-04-07

漏洞描述

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.

解决建议

建议您更新当前系统或软件至最新版，完成漏洞的修复。

参考链接
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-s...

受影响软件情况

#	类型	厂商	产品	版本	影响面
1
	运行在以下环境
	应用	cisco	identity_services_engine	2.2.0	-
	运行在以下环境
	应用	cisco	identity_services_engine	2.4.0	-
	运行在以下环境
	应用	cisco	identity_services_engine	2.6.0	-
	运行在以下环境
	应用	cisco	identity_services_engine	2.7.0	-
	运行在以下环境
	应用	cisco	identity_services_engine	2.7.0.356	-
	运行在以下环境
	应用	cisco	identity_services_engine	3.0.0	-
	运行在以下环境
	应用	cisco	identity_services_engine	3.1	-

CVSS3评分 7.5

• 攻击路径 网络
• 攻击复杂度 低
• 权限要求 无
• 影响范围 未更改
• 用户交互 无
• 可用性 高
• 保密性 无
• 完整性 无

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CWE-ID 漏洞类型 NVD-CWE-noinfo