CVE-2020-3496— Cisco Small Business Smart and Managed Switches IPv6数据包处理引擎输入验证错误漏洞
一分钟漏洞结论
影响对象
Cisco Cisco Small Business 250 Series Smart Switches 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 Small Business Smart和Cisco Managed Switches都是思科（Cisco）的产品。Cisco Small Business Smart是一个小型交换机。Cisco Managed Switches是一个管理型交换机。 Cisco Small Business Smart and Managed Switches中的IPv6数据包处理引擎存在输入验证错误漏洞，该漏洞源于程序没有充分验证接收的IPv6流量。远程攻击者可通过发送特制的IPv6数据包利用该漏洞造成拒绝
可能的 ATT&CK 技术 1 AI
T1499.002 · Service Exhaustion Flood
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一、 漏洞 CVE-2020-3496 基础信息
漏洞信息
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Vulnerability Title
Cisco Small Business Smart and Managed Switches Denial of Service Vulnerability
来源: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the IPv6 packet processing engine of Cisco Small Business Smart and Managed Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of incoming IPv6 traffic. An attacker could exploit this vulnerability by sending a crafted IPv6 packet through an affected device. A successful exploit could allow the attacker to cause the switch management CLI to stop responding, resulting in a DoS condition. This vulnerability is specific to IPv6 traffic. IPv4 traffic is not affected.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
来源: CVE Program / CVE List V5
Vulnerability Title
Cisco Small Business Smart and Managed Switches IPv6数据包处理引擎输入验证错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Cisco Small Business Smart和Cisco Managed Switches都是思科（Cisco）的产品。Cisco Small Business Smart是一个小型交换机。Cisco Managed Switches是一个管理型交换机。 Cisco Small Business Smart and Managed Switches中的IPv6数据包处理引擎存在输入验证错误漏洞，该漏洞源于程序没有充分验证接收的IPv6流量。远程攻击者可通过发送特制的IPv6数据包利用该漏洞造成拒绝
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 Small Business 250 Series Smart Switches Software | n/a | - |
|
二、漏洞 CVE-2020-3496 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-2020-3496 厂商安全公告 (1)
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbss-ipv6-dos-tsgqbffW vendor-advisory x_refsource_CISCO
同批安全公告 · Cisco · 2020-08-26 · 共 22 条
| CVE-2020-3507 | 8.8 HIGH | Cisco Video Surveillance 8000 Series IP Cameras 输入验证错误漏洞 |
| CVE-2020-3443 | 8.8 HIGH | Cisco Smart Software Manager On-Prem 权限许可和访问控制问题漏洞 |
| CVE-2020-3506 | 8.8 HIGH | Cisco Video Surveillance 8000 Series IP Cameras Cisco Discovery Protocol实现输入验证错误漏洞 |
| CVE-2020-3523 | 6.5 MEDIUM | Cisco Data Center Network Manager 跨站脚本漏洞 |
| CVE-2020-3518 | 6.5 MEDIUM | Cisco Data Center Network Manager 跨站脚本漏洞 |
| CVE-2020-3505 | 6.5 MEDIUM | Cisco Video Surveillance 8000 Series IP Cameras Cisco Discovery Protocol 资源管理错误漏洞 |
| CVE-2020-3485 | 6.3 MEDIUM | Cisco Vision Dynamic Signage Director Web管理软件权限许可和访问控制问题漏洞 |
| CVE-2020-3522 | 6.3 MEDIUM | Cisco Data Center Network Manager Web管理接口访问控制错误漏洞 |
| CVE-2020-3491 | 5.5 MEDIUM | Cisco Vision Dynamic Signage Director Web管理接口跨站脚本漏洞 |
| CVE-2020-3520 | 5.5 MEDIUM | Cisco Data Center Network Manager 信息泄露漏洞 |
| CVE-2020-3484 | 5.3 MEDIUM | Cisco Vision Dynamic Signage Director Web管理界面配置错误漏洞 |
| CVE-2020-3521 | 5.3 MEDIUM | Cisco Data Center Network Manager 输入验证错误漏洞 |
| CVE-2020-3490 | 4.9 MEDIUM | Cisco Vision Dynamic Signage Director Web管理接口路径遍历漏洞 |
| CVE-2020-3151 | Cisco Connected Mobile Experiences 授权问题漏洞 | |
| CVE-2020-3466 | Cisco DNA Center software Web管理接口跨站脚本漏洞 | |
| CVE-2020-3446 | Cisco ENCS 5400-W Series和CSP 5000-W Series 信任管理问题漏洞 | |
| CVE-2020-3440 | Cisco Webex Meetings Desktop App 路径遍历漏洞 | |
| CVE-2020-3439 | Cisco Data Center Network Manager 跨站脚本漏洞 | |
| CVE-2020-3519 | Cisco Data Center Network Manager 输入验证错误漏洞 | |
| CVE-2020-3389 | Cisco Hyperflex HX-Series Software安装模块加密问题漏洞 |
显示前 20 条，共 22 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2020-3496
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