CVE-2023-20251
Quick assessment
Affected
Cisco Cisco Wireless LAN Controller (WLC)
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 Wireless LAN Controller（WLC）是美国思科（Cisco）公司的一款无线局域网控制器产品。该产品在无线局域网中提供安全策略、入侵检测等功能。 Cisco Wireless LAN Controller 存在安全漏洞，该漏洞源于AireOS 软件的内存缓冲区中存在漏洞，未经身份验证的相邻攻击者可能会导致内存泄漏，最终导致设备重新启动。
Possible ATT&CK Techniques 2 AI
T1499 · Endpoint Denial of Service T1499.002 · Service Exhaustion Flood
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I. Basic Information for CVE-2023-20251
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the memory buffer of Cisco Wireless LAN Controller (WLC) AireOS Software could allow an unauthenticated, adjacent attacker to cause memory leaks that could eventually lead to a device reboot.
This vulnerability is due to memory leaks caused by multiple clients connecting under specific conditions. An attacker could exploit this vulnerability by causing multiple wireless clients to attempt to connect to an access point (AP) on an affected device. A successful exploit could allow the attacker to cause the affected device to reboot after a significant amount of time, resulting in a denial of service (DoS) condition.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Wireless LAN Controller 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Wireless LAN Controller（WLC）是美国思科（Cisco）公司的一款无线局域网控制器产品。该产品在无线局域网中提供安全策略、入侵检测等功能。 Cisco Wireless LAN Controller 存在安全漏洞，该漏洞源于AireOS 软件的内存缓冲区中存在漏洞，未经身份验证的相邻攻击者可能会导致内存泄漏，最终导致设备重新启动。
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 Wireless LAN Controller (WLC) | 8.10.162.0 | - |
|
| Cisco | Cisco Mobility Express | 8.10.183.0 | - |
|
II. Public POCs for CVE-2023-20251
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2023-20251 (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-2023-20187 | 8.6 HIGH | Cisco IOS XE Software 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-2023-20223 | 8.6 HIGH | Cisco DNA Center 安全漏洞 |
| CVE-2023-20033 | 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-2023-20176 | 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-2023-20251
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