中危 cisco business_220-8t-e-2g_firmware 未进行输入大小检查的缓冲区拷贝（传统缓冲区溢出）
CVE编号
CVE-2021-34779利用情况
暂无补丁情况
官方补丁披露时间
2021-10-07漏洞描述
Cisco Small Business 220 Series Smart Switches是美国思科（Cisco）公司的一款小型智能交换机设备。 Cisco Small Business 220 Series Smart Switches的链路层发现协议（LLDP）存在拒绝服务漏洞。该漏洞源于程序在处理LLDP消息时未执行正确的边界检查。攻击者可利用该漏洞造成设备意外重新加载从而导致拒绝服务。 受影响系统： Cisco Small Business 220 Series Smart Switches解决建议
目前厂商已发布升级补丁以修复漏洞，补丁获取链接：https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb220-lldp-multivuls-mVRUtQ8T
参考链接 |
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| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-s... |
受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 系统 | cisco | business_220-16p-2g_firmware | * | Up to (including) 1.2.0.6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | business_220-16t-2g_firmware | * | Up to (including) 1.2.0.6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | business_220-24fp-4g_firmware | * | Up to (including) 1.2.0.6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | business_220-24fp-4x_firmware | * | Up to (including) 1.2.0.6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | business_220-24p-4g_firmware | * | Up to (including) 1.2.0.6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | business_220-24p-4x_firmware | * | Up to (including) 1.2.0.6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | business_220-24t-4g_firmware | * | Up to (including) 1.2.0.6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | business_220-24t-4x_firmware | * | Up to (including) 1.2.0.6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | business_220-48fp-4x_firmware | * | Up to (including) 1.2.0.6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | business_220-48p-4g_firmware | * | Up to (including) 1.2.0.6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | business_220-48p-4x_firmware | * | Up to (including) 1.2.0.6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | business_220-48t-4g_firmware | * | Up to (including) 1.2.0.6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | business_220-48t-4x_firmware | * | Up to (including) 1.2.0.6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | business_220-8fp-e-2g_firmware | * | Up to (including) 1.2.0.6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | business_220-8p-e-2g_firmware | * | Up to (including) 1.2.0.6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | business_220-8t-e-2g_firmware | * | Up to (including) 1.2.0.6 | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | business_220-16p-2g | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | business_220-16t-2g | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | business_220-24fp-4g | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | business_220-24fp-4x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | business_220-24p-4g | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | business_220-24p-4x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | business_220-24t-4g | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | business_220-24t-4x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | business_220-48fp-4x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | business_220-48p-4g | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | business_220-48p-4x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | business_220-48t-4g | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | business_220-48t-4x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | business_220-8fp-e-2g | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | business_220-8p-e-2g | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | business_220-8t-e-2g | - | - | |||||
- 攻击路径 远程
- 攻击复杂度 复杂
- 权限要求 无需权限
- 影响范围 全局影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 无影响
- 数据完整性 无影响
- 服务器危害 无影响
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-120 | 未进行输入大小检查的缓冲区拷贝（传统缓冲区溢出） |
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