CVE-2022-20682— Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Service Vulnerability
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I. Basic Information for CVE-2022-20682
Vulnerability Information
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Vulnerability Title
Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to inadequate input validation of incoming CAPWAP packets encapsulating multicast DNS (mDNS) queries. An attacker could exploit this vulnerability by connecting to a wireless network and sending a crafted mDNS query, which would flow through and be processed by the wireless controller. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
未检查返回值导致空指针解引用
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IOS XE Wireless Controller software 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XE Wireless Controller software是美国思科（Cisco）公司的一个无线局域网控制器。提供一个管理网络功能 Cisco IOS XE Wireless Controller software 存在代码问题漏洞，该漏洞源于攻击者可以通过 CAPWAP 导致 Cisco IOS XE 的致命错误，以触发拒绝服务。
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-2022-20682
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-c9800-capwap-mdns-6PSn7gKUvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2022-20682
Same Patch Batch · Cisco · 2022-04-15 · 34 CVEs total
| CVE-2022-20695 | 10.0 CRITICAL | Cisco Wireless LAN Controller Management Interface Authentication Bypass Vulnerability |
| CVE-2022-20622 | 8.6 HIGH | Cisco Embedded Wireless Controller with Catalyst Access Points IP Flood Denial of Service |
| CVE-2022-20678 | 8.6 HIGH | Cisco IOS XE Software AppNav-XE Denial of Service Vulnerability |
| CVE-2022-20714 | 8.6 HIGH | Cisco IOS XR Software for ASR 9000 Series Routers Lightspeed-Plus Line Cards Denial of Ser |
| CVE-2022-20697 | 8.6 HIGH | Cisco IOS and IOS XE Software Web Services Denial of Service Vulnerability |
| CVE-2022-20683 | 8.6 HIGH | Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers Application Visibility |
| CVE-2022-20716 | 7.8 HIGH | Cisco SD-WAN Solution Improper Access Control Vulnerability |
| CVE-2022-20681 | 7.8 HIGH | Cisco IOS XE Software for Cisco Catalyst 9000 Family Switches and Catalyst 9000 Family Wir |
| CVE-2022-20692 | 7.7 HIGH | Cisco IOS XE Software NETCONF Over SSH Denial of Service Vulnerability |
| CVE-2022-20684 | 7.4 HIGH | Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family SNMP Trap Denial of |
| CVE-2022-20761 | 7.4 HIGH | Cisco 1000 Series Connected Grid Router Integrated Wireless Access Point Denial of Service |
| CVE-2022-20739 | 7.3 HIGH | Cisco SD-WAN vManage Software Privilege Escalation Vulnerability |
| CVE-2022-20694 | 6.8 MEDIUM | Cisco IOS XE Software Border Gateway Protocol Resource Public Key Infrastructure Denial of |
| CVE-2022-20679 | 6.8 MEDIUM | Cisco IOS XE Software IPSec Denial of Service Vulnerability |
| CVE-2022-20758 | 6.8 MEDIUM | Cisco IOS XR Software Border Gateway Protocol Ethernet VPN Denial of Service Vulnerability |
| CVE-2022-20735 | 6.5 MEDIUM | Cisco SD-WAN vManage Software Cross-Site Request Forgery Vulnerability |
| CVE-2022-20747 | 6.5 MEDIUM | Cisco SD-WAN vManage Software Information Disclosure Vulnerability |
| CVE-2022-20726 | 5.5 MEDIUM | Cisco IOx Application Hosting Environment Vulnerabilities |
| CVE-2022-20718 | 5.5 MEDIUM | Cisco IOx Application Hosting Environment Vulnerabilities |
| CVE-2022-20725 | 5.5 MEDIUM | Cisco IOx Application Hosting Environment Vulnerabilities |
Showing top 20 of 34 CVEs. View all on vendor page → →
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