CVE-2020-3408 (CNNVD-202009-1395)
中文标题:
Cisco IOS 和 Cisco IOS XE Split DNS 资源管理错误漏洞
英文标题:
Cisco IOS and IOS XE Software Split DNS Denial of Service Vulnerability
漏洞描述
中文描述:
Cisco IOS和IOS XE都是美国思科（Cisco）公司的产品。CLI是其中的一个命令行界面。 Cisco IOS 和Cisco IOS XE软件的Split DNS功能存在安全漏洞，该漏洞源于对mDNS数据包的验证不正确造成的。攻击者可利用该漏洞通过尝试解析受影响的设备处理的地址或主机名，导致重新加载设备，从而导致DoS状态。
英文描述:
A vulnerability in the Split DNS feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability occurs because the regular expression (regex) engine that is used with the Split DNS feature of affected releases may time out when it processes the DNS name list configuration. An attacker could exploit this vulnerability by trying to resolve an address or hostname that the affected device handles. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
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 | n/a | - | - |
cpe:2.3:a:cisco:cisco_ios:n_a:*:*:*:*:*:*:*
|
| cisco | ios | 15.8\(3\)m3 | - | - |
cpe:2.3:o:cisco:ios:15.8\(3\)m3:*:*:*:*:*:*:*
|
| cisco | ios_xe | 15.8\(3\)m3 | - | - |
cpe:2.3:o:cisco:ios_xe:15.8\(3\)m3:*:*:*:*:*:*:*
|
解决方案
中文解决方案:
英文解决方案:
临时解决方案:
参考链接
cve.org
CVSS评分详情
3.0 (cna)
HIGHCVSS:3.0/AV:N/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-2020-3408 |
2025-11-11 15:20:37 | 2025-11-11 07:36:19 |
| NVD | nvd_CVE-2020-3408 |
2025-11-11 14:57:03 | 2025-11-11 07:44:43 |
| CNNVD | cnnvd_CNNVD-202009-1395 |
2025-11-11 15:10:30 | 2025-11-11 07:56:26 |
版本与语言
安全公告
变更历史
查看详细变更
- vulnerability_type: 未提取 -> 资源管理错误
- cnnvd_id: 未提取 -> CNNVD-202009-1395
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 1 -> 3
- data_sources: ['cve'] -> ['cve', 'nvd']