cisco ios_xe 密码学签名的验证不恰当
CVE编号
CVE-2022-20944利用情况
暂无补丁情况
N/A披露时间
2022-10-11漏洞描述
A vulnerability in the software image verification functionality of Cisco IOS XE Software for Cisco Catalyst 9200 Series Switches could allow an unauthenticated, physical attacker to execute unsigned code at system boot time. This vulnerability is due to an improper check in the code function that manages the verification of the digital signatures of system image files during the initial boot process. An attacker could exploit this vulnerability by loading unsigned software on an affected device. A successful exploit could allow the attacker to boot a malicious software image or execute unsigned code and bypass the image verification check part of the boot process of the affected device. To exploit this vulnerability, the attacker needs either unauthenticated physical access to the device or privileged access to the root shell on the device. Note: In Cisco IOS XE Software releases 16.11.1 and later, root shell access is protected by the Consent Token mechanism. However, an attacker with level-15 privileges could easily downgrade the Cisco IOS XE Software running on a device to a release where root shell access is more readily available.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
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 | ios_xe | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_9200 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_9200cx | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_9200l | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_c9200-24p | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_c9200-24t | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_c9200-48p | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_c9200-48t | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_c9200l-24p-4g | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_c9200l-24p-4x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_c9200l-24pxg-2y | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_c9200l-24pxg-4x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_c9200l-24t-4g | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_c9200l-24t-4x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_c9200l-48p-4g | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_c9200l-48p-4x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_c9200l-48pxg-2y | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_c9200l-48pxg-4x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_c9200l-48t-4g | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | catalyst_c9200l-48t-4x | - | - | |||||
- 攻击路径 物理
- 攻击复杂度 低
- 权限要求 无
- 影响范围 未更改
- 用户交互 无
- 可用性 高
- 保密性 高
- 完整性 高
| CWE-ID | 漏洞类型 |
| CWE-347 | 密码学签名的验证不恰当 |
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