ios_xr 安全漏洞 (CVE-2023-20233)
CVE编号
CVE-2023-20233利用情况
暂无补丁情况
N/A披露时间
2022-10-27漏洞描述
A vulnerability in the Connectivity Fault Management (CFM) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to incorrect processing of invalid continuity check messages (CCMs). An attacker could exploit this vulnerability by sending crafted CCMs to an affected device. A successful exploit could allow the attacker to cause the CFM service to crash when a user displays information about maintenance end points (MEPs) for peer MEPs on an affected device.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://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory... |
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_xr | * | Up to (excluding) 7.5.4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | ios_xr | * | From (including) 7.6 | Up to (excluding) 7.6.3 | ||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | ios_xr | * | From (including) 7.7 | Up to (excluding) 7.7.21 | ||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | ios_xr | * | From (including) 7.8 | Up to (excluding) 7.8.2 | ||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | ios_xr | 7.9.0 | - | |||||
- 攻击路径 网络
- 攻击复杂度 低
- 权限要求 无
- 影响范围 未更改
- 用户交互 需要
- 可用性 高
- 保密性 无
- 完整性 无
| CWE-ID | 漏洞类型 |
| CWE-354 | 完整性检查值验证不恰当 |
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