CVE-2020-3165— Cisco NX-OS Software 信任管理问题漏洞
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一、 漏洞 CVE-2020-3165 基础信息
漏洞信息
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Vulnerability Title
Cisco NX-OS Software Border Gateway Protocol MD5 Authentication Bypass Vulnerability
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
A vulnerability in the implementation of Border Gateway Protocol (BGP) Message Digest 5 (MD5) authentication in Cisco NX-OS Software could allow an unauthenticated, remote attacker to bypass MD5 authentication and establish a BGP connection with the device. The vulnerability occurs because the BGP MD5 authentication is bypassed if the peer does not have MD5 authentication configured, the NX-OS device does have BGP MD5 authentication configured, and the NX-OS BGP virtual routing and forwarding (VRF) name is configured to be greater than 19 characters. An attacker could exploit this vulnerability by attempting to establish a BGP session with the NX-OS peer. A successful exploit could allow the attacker to establish a BGP session with the NX-OS device without MD5 authentication. The Cisco implementation of the BGP protocol accepts incoming BGP traffic only from explicitly configured peers. To exploit this vulnerability, an attacker must send the malicious packets over a TCP connection that appears to come from a trusted BGP peer. To do so, the attacker must obtain information about the BGP peers in the affected system’s trusted network.
来源: 美国国家漏洞数据库 NVD
CVSS Information
N/A
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
使用硬编码的凭证
来源: 美国国家漏洞数据库 NVD
Vulnerability Title
Cisco NX-OS Software 信任管理问题漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Cisco NX-OS Software是美国思科（Cisco）公司的一套交换机使用的数据中心级操作系统软件。 Cisco Nexus 3000 Series Switches和Nexus 9000 Series Switches（处于standalone NX-OS模式下）中的NX-OS Software中存在信任管理问题漏洞。远程攻击者可利用该漏洞绕过BGP MD5身份验证，与其他NX-OS设备建立BGP会话。以下产品及版本受到影响：NX-OS Software 9.2(1)版本，9.2(2)版本，9
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Cisco | Cisco NX-OS Software | 9.2(1) | - |
二、漏洞 CVE-2020-3165 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-nxos-bgpmd5vendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2020-3165
同批安全公告 · Cisco · 2020-02-26 · 共 11 条
| CVE-2020-3175 | Cisco MDS 9000 Series Multilayer Switches NX-OS Software 资源管理错误漏洞 | |
| CVE-2020-3174 | Cisco NX-OS Software 数据伪造问题漏洞 | |
| CVE-2020-3173 | Cisco UCS Manager Software 操作系统命令注入漏洞 | |
| CVE-2020-3172 | Cisco NX-OS Software和Cisco FXOS Software 输入验证错误漏洞 | |
| CVE-2020-3171 | Cisco FXOS Software和Cisco UCS Manager 操作系统命令注入漏洞 | |
| CVE-2020-3170 | Cisco NX-OS Software 输入验证错误漏洞 | |
| CVE-2020-3169 | Cisco Firepower 4100 Series和Firepower 9300 Security Appliances FXOS Software 操作系统命令注入漏洞 | |
| CVE-2020-3168 | Cisco Nexus 1000V Switch for VMware vSphere 资源管理错误漏洞 | |
| CVE-2020-3167 | Cisco FXOS Software和Cisco UCS Manager Software 操作系统命令注入漏洞 | |
| CVE-2020-3166 | Cisco FXOS Software 输入验证错误漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2020-3165
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