CVE-2021-1591— Cisco Nexus 9500 Series Switches 安全漏洞
一分钟漏洞结论
影响对象
Cisco Cisco NX-OS Software
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Cisco Nexus 9500 Series Switches是美国思科（Cisco）公司的系列交换机。 Cisco Nexus 9500 Series Switches 中存在安全漏洞，攻击者可以通过该漏洞获取敏感数据。
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一、 漏洞 CVE-2021-1591 基础信息
漏洞信息
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Vulnerability Title
Cisco Nexus 9500 Series Switches Access Control List Bypass Vulnerability
来源: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the EtherChannel port subscription logic of Cisco Nexus 9500 Series Switches could allow an unauthenticated, remote attacker to bypass access control list (ACL) rules that are configured on an affected device. This vulnerability is due to oversubscription of resources that occurs when applying ACLs to port channel interfaces. An attacker could exploit this vulnerability by attempting to access network resources that are protected by the ACL. A successful exploit could allow the attacker to access network resources that would be protected by the ACL that was applied on the port channel interface.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
来源: CVE Program / CVE List V5
Vulnerability Title
Cisco Nexus 9500 Series Switches 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Cisco Nexus 9500 Series Switches是美国思科（Cisco）公司的系列交换机。 Cisco Nexus 9500 Series Switches 中存在安全漏洞，攻击者可以通过该漏洞获取敏感数据。
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 | n/a | - |
|
二、漏洞 CVE-2021-1591 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
未找到公开 POC。
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CVE-2021-1591 厂商安全公告 (1)
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nexus-acl-vrvQYPVe vendor-advisory x_refsource_CISCO
同批安全公告 · Cisco · 2021-08-25 · 共 15 条
| CVE-2021-1577 | 9.1 CRITICAL | Cisco Application Policy Infrastructure Controller 安全漏洞 |
| CVE-2021-1578 | 8.8 HIGH | Cisco Application Policy Infrastructure Controller 访问控制错误漏洞 |
| CVE-2021-1588 | 8.6 HIGH | Cisco NX-OS Software 缓冲区错误漏洞 |
| CVE-2021-1587 | 8.6 HIGH | Cisco NX-OS Software 输入验证错误漏洞 |
| CVE-2021-1586 | 8.6 HIGH | Cisco Nexus 9000 Series Fabric Switches 数据伪造问题漏洞 |
| CVE-2021-1523 | 8.6 HIGH | Cisco Nexus 9000 Series Fabric Switches 输入验证错误漏洞 |
| CVE-2021-1579 | 8.1 HIGH | Cisco Application Policy Infrastructure Controller 授权问题漏洞 |
| CVE-2021-1581 | 6.5 MEDIUM | Cisco Application Policy Infrastructure Controller 安全漏洞 |
| CVE-2021-1580 | 6.5 MEDIUM | Cisco Application Policy Infrastructure Controller 命令注入漏洞 |
| CVE-2021-1584 | 6.0 MEDIUM | Cisco Nexus 9000 Series Fabric Switches 操作系统命令注入漏洞 |
| CVE-2021-1582 | 5.4 MEDIUM | Cisco Application Policy Infrastructure Controller 跨站脚本漏洞 |
| CVE-2021-1590 | 5.3 MEDIUM | Cisco NX-OS Software 安全漏洞 |
| CVE-2021-1583 | 4.4 MEDIUM | Cisco Nexus 9000 Series Fabric Switches 安全漏洞 |
| CVE-2021-1592 | 4.3 MEDIUM | Cisco UCS Manager 资源管理错误漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-1591
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