CVE-2020-3120 (CNNVD-202002-129)
中文标题:
多款Cisco产品输入验证错误漏洞
英文标题:
Cisco FXOS, IOS XR, and NX-OS Software Cisco Discovery Protocol Denial of Service Vulnerability
漏洞描述
中文描述:
Cisco NX-OS Software等都是美国思科（Cisco）公司的产品。Cisco NX-OS Software是一套交换机使用的数据中心级操作系统软件。Cisco FXOS Software是一套运行在思科安全设备中的防火墙软件。Cisco IOS XR是一套为其网络设备开发的操作系统。 Cisco FXOS Software、Cisco IOS XR Software和Cisco NX-OS Software中Cisco Discovery Protocol的实现存在输入验证错误漏洞，该漏洞源于程序在处理Cisco Discovery Protocol时，缺少检查。远程攻击者可通过发送恶意的Cisco Discovery Protocol数据包重新加载受影响的设备，造成拒绝服务。
英文描述:
A vulnerability in the Cisco Discovery Protocol implementation for Cisco FXOS Software, Cisco IOS XR Software, and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to a missing check when the affected software processes Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to exhaust system memory, causing the device to reload. Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).
CWE类型:
标签:
受影响产品
| 厂商 | 产品 | 版本 | 版本范围 | 平台 | CPE |
|---|---|---|---|---|---|
| Cisco | Cisco IOS XR Software | - | < 2.3.1.173 | - |
cpe:2.3:a:cisco:cisco_ios_xr_software:*:*:*:*:*:*:*:*
|
| cisco | firepower_extensible_operating_system | * | - | - |
cpe:2.3:o:cisco:firepower_extensible_operating_system:*:*:*:*:*:*:*:*
|
| cisco | fxos | 2.4 | - | - |
cpe:2.3:o:cisco:fxos:2.4:*:*:*:*:*:*:*
|
| cisco | ios_xr | 5.2.5 | - | - |
cpe:2.3:o:cisco:ios_xr:5.2.5:*:*:*:*:*:*:*
|
| cisco | ios_xr | 6.4.2 | - | - |
cpe:2.3:o:cisco:ios_xr:6.4.2:*:*:*:*:*:*:*
|
| cisco | ios_xr | 6.5.3 | - | - |
cpe:2.3:o:cisco:ios_xr:6.5.3:*:*:*:*:*:*:*
|
| cisco | ios_xr | 6.6.25 | - | - |
cpe:2.3:o:cisco:ios_xr:6.6.25:*:*:*:*:*:*:*
|
| cisco | ios_xr | 7.0.1 | - | - |
cpe:2.3:o:cisco:ios_xr:7.0.1:*:*:*:*:*:*:*
|
| cisco | nx-os | * | - | - |
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
|
| cisco | ucs_manager | * | - | - |
cpe:2.3:a:cisco:ucs_manager:*:*:*:*:*:*:*:*
|
解决方案
中文解决方案:
英文解决方案:
临时解决方案:
CVSS评分详情
3.0 (cna)
HIGHCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
时间信息
利用信息
数据源详情
| 数据源 | 记录ID | 版本 | 提取时间 |
|---|---|---|---|
| CVE | cve_CVE-2020-3120 |
2025-11-11 15:20:36 | 2025-11-11 07:36:18 |
| NVD | nvd_CVE-2020-3120 |
2025-11-11 14:56:55 | 2025-11-11 07:44:43 |
| CNNVD | cnnvd_CNNVD-202002-129 |
2025-11-11 15:10:21 | 2025-11-11 07:55:25 |
版本与语言
安全公告
变更历史
查看详细变更
- vulnerability_type: 未提取 -> 输入验证错误
- cnnvd_id: 未提取 -> CNNVD-202002-129
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 1 -> 10
- data_sources: ['cve'] -> ['cve', 'nvd']