CVE-2023-20187
Quick assessment
Affected
Cisco Cisco IOS XE Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Cisco IOS XE Software是美国思科（Cisco）公司的一个操作系统。用于企业有线和无线访问，汇聚，核心和WAN的单一操作系统，Cisco IOS XE降低了业务和网络的复杂性。 Cisco IOS XE Software 存在安全漏洞，该漏洞源于未经身份验证的远程攻击者导致受影响的设备重新加载，从而导致拒绝服务 (DoS) 健康）状况。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-20187
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Multicast Leaf Recycle Elimination (mLRE) feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.
This vulnerability is due to incorrect handling of certain IPv6 multicast packets when they are fanned out more than seven times on an affected device. An attacker could exploit this vulnerability by sending a specific IPv6 multicast or IPv6 multicast VPN (MVPNv6) packet through the affected device. A successful exploit could allow the attacker to cause a reload of the affected device, resulting in a DoS condition.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用越界的指针偏移
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco IOS XE Software 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XE Software是美国思科（Cisco）公司的一个操作系统。用于企业有线和无线访问，汇聚，核心和WAN的单一操作系统，Cisco IOS XE降低了业务和网络的复杂性。 Cisco IOS XE Software 存在安全漏洞，该漏洞源于未经身份验证的远程攻击者导致受影响的设备重新加载，从而导致拒绝服务 (DoS) 健康）状况。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco IOS XE Software | 3.7.1S | - |
|
II. Public POCs for CVE-2023-20187
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2023-20187 (1)
Same Patch Batch · Cisco · 2023-09-27 · 18 CVEs total
| CVE-2023-20252 | 9.8 CRITICAL | Cisco Catalyst SD-WAN Manager 授权问题漏洞 |
| CVE-2023-20231 | 8.8 HIGH | Cisco IOS XE Software 输入验证错误漏洞 |
| CVE-2023-20033 | 8.6 HIGH | Cisco IOS XE Software 安全漏洞 |
| CVE-2023-20223 | 8.6 HIGH | Cisco DNA Center 安全漏洞 |
| CVE-2023-20227 | 8.6 HIGH | Cisco IOS XE Software 安全漏洞 |
| CVE-2023-20226 | 8.6 HIGH | Cisco IOS XE Software 安全漏洞 |
| CVE-2023-20186 | 8.0 HIGH | Cisco IOS 安全漏洞 |
| CVE-2023-20034 | 7.5 HIGH | Cisco SD-WAN vManage 安全漏洞 |
| CVE-2023-20254 | 7.2 HIGH | Cisco Catalyst 安全漏洞 |
| CVE-2023-20253 | 7.1 HIGH | Cisco SD-WAN vManage 安全漏洞 |
| CVE-2023-20109 | 6.6 MEDIUM | Cisco IOS 缓冲区错误漏洞 |
| CVE-2023-20202 | 6.1 MEDIUM | Cisco IOS XE Software 安全漏洞 |
| CVE-2023-20251 | 6.1 MEDIUM | Cisco Wireless LAN Controller 缓冲区错误漏洞 |
| CVE-2023-20176 | 5.8 MEDIUM | Cisco Access Point 资源管理错误漏洞 |
| CVE-2023-20262 | 5.3 MEDIUM | Cisco Catalyst SD-WAN Manager 安全漏洞 |
| CVE-2023-20268 | 4.7 MEDIUM | Cisco Access Point Software Uncontrolled Resource Consumption Vulnerability |
| CVE-2023-20179 | 4.3 MEDIUM | Cisco Catalyst SD-WAN Manager 跨站脚本漏洞 |
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V. Comments for CVE-2023-20187
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