CVE编号
CVE-2022-20623利用情况
暂无补丁情况
N/A披露时间
2022-02-24漏洞描述
A vulnerability in the rate limiter for Bidirectional Forwarding Detection (BFD) traffic of Cisco NX-OS Software for Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to cause BFD traffic to be dropped on an affected device. This vulnerability is due to a logic error in the BFD rate limiter functionality. An attacker could exploit this vulnerability by sending a crafted stream of traffic through the device. A successful exploit could allow the attacker to cause BFD traffic to be dropped, resulting in BFD session flaps. BFD session flaps can cause route instability and dropped traffic, resulting in a denial of service (DoS) condition. This vulnerability applies to both IPv4 and IPv6 traffic.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 |
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|---|---|
| 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 | |||||||||
| 系统 | cisco | nx-os | * |
From (including) 10.1\(1\) |
Up to (including) 10.2\(1\) |
||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | nx-os | * |
From (including) 7.0\(3\)i6\(2\) |
Up to (including) 7.0\(3\)i7\(3\) |
||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | nx-os | * |
From (including) 7.0\(3\)i6\(2\) |
Up to (including) 9.3\(8\) |
||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c92160yc-x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c92300yc | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c92304qc | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c9232c | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c92348gc-x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c9236c | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c9272q | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c93108tc-ex | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c93108tc-fx | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c9316d-gx | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c93180lc-ex | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c93180yc-ex | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c93180yc-fx | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c93180yc2-fx | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c93216tc-fx2 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c93240yc-fx2 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c9332c | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c93360yc-fx2 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c9336c-fx2 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c9348gc-fxp | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c93600cd-gx | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c9364c | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-c9364c-gx | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-x97160yc-ex | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-x97284yc-fx | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-x9732c-ex | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-x9732c-fx | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-x9736c-ex | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-x9736c-fx | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | n9k-x9788tc-fx | - | - | |||||
- 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
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