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CVE-2023-20100— Cisco IOS XE Software for Wireless LAN Controllers CAPWAP Join Denial of Service Vulnerability

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AP加入过程中满足某些条件时发生的逻辑错误。

CVSS 6.8 · Medium EPSS 0.78% · P54
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I. Basic Information for CVE-2023-20100

Vulnerability Information
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Vulnerability Title
Cisco IOS XE Software for Wireless LAN Controllers CAPWAP Join Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the access point (AP) joining process of the Control and Provisioning of Wireless Access Points (CAPWAP) protocol of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to a logic error that occurs when certain conditions are met during the AP joining process. An attacker could exploit this vulnerability by adding an AP that is under their control to the network. The attacker then must ensure that the AP successfully joins an affected wireless controller under certain conditions. Additionally, the attacker would need the ability to restart a valid AP that was previously connected to the controller. A successful exploit could allow the attacker to cause the affected device to restart unexpectedly, resulting in a DoS condition.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用多个具有重复标识的资源
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AP加入过程中满足某些条件时发生的逻辑错误。
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 n/a -

II. Public POCs for CVE-2023-20100

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III. Intelligence Information for CVE-2023-20100

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Vendor Advisories for CVE-2023-20100 (1)

Same Patch Batch · Cisco · 2023-03-23 · 18 CVEs total

CVE-2023-20027 8.6 HIGH Cisco IOS XE Software Virtual Fragmentation Reassembly Denial of Service Vulnerability
CVE-2023-20080 8.6 HIGH Cisco IOS and IOS XE Software IPv6 DHCP (DHCPv6) Relay and Server Denial of Service Vulner
CVE-2023-20072 8.6 HIGH Cisco IOS XE Software Fragmented Tunnel Protocol Packet Denial of Service Vulnerability
CVE-2023-20055 8.0 HIGH Cisco DNA Center Privilege Escalation Vulnerability
CVE-2023-20035 7.8 HIGH Cisco IOS XE SD-WAN Software Command Injection Vulnerability
CVE-2023-20065 7.8 HIGH Cisco IOS XE Software 安全漏洞
CVE-2023-20112 7.4 HIGH Cisco Access Point Software Association Request Denial of Service Vulnerability
CVE-2023-20067 7.4 HIGH Cisco IOS XE Software for Wireless LAN Controllers HTTP Client Profiling Denial of Service
CVE-2023-20081 6.8 MEDIUM Cisco Adaptive Security Appliance Software, Firepower Threat Defense Software, IOS Softwar
CVE-2023-20113 6.5 MEDIUM Cisco SD-WAN vManage Software Cross-Site Request Forgery Vulnerability
CVE-2023-20066 6.5 MEDIUM Cisco IOS XE Software Web UI Path Traversal Vulnerability
CVE-2023-20056 6.5 MEDIUM Cisco Access Point Software Denial of Service Vulnerability
CVE-2023-20082 6.1 MEDIUM Cisco IOS XE Software for Cisco Catalyst 9300 Series Switches Secure Boot Bypass Vulnerabi
CVE-2023-20097 4.6 MEDIUM Cisco Access Point Software Command Injection Vulnerability
CVE-2023-20029 4.4 MEDIUM Cisco IOS XE Software Privilege Escalation Vulnerability
CVE-2023-20059 4.3 MEDIUM Cisco DNA Center Information Disclosure Vulnerability
CVE-2023-20107 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Low-Entro

IV. Related Vulnerabilities

Same product: Cisco IOS XE Software
Same vendor: Cisco
Same weakness: CWE-694

V. Comments for CVE-2023-20100

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