CVE-2022-20856— Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Mobility Denial of Service Vulnerability
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I. Basic Information for CVE-2022-20856
Vulnerability Information
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Vulnerability Title
Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Mobility Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the processing of Control and Provisioning of Wireless Access Points (CAPWAP) Mobility messages in 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 a logic error and improper management of resources related to the handling of CAPWAP Mobility messages. An attacker could exploit this vulnerability by sending crafted CAPWAP Mobility packets to an affected device. A successful exploit could allow the attacker to exhaust resources on the affected device. This would cause the device to 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
在生命周期中对资源的控制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IOS XE Wireless Controller software 安全漏洞
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 Catalyst 9000存在安全漏洞，该漏洞源于在处理CAPWAP Mobility消息相关时出现逻辑错误和资源管理不当问题。
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-2022-20856
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|---|
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- Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Mobility Denial of Service Vulnerabilityvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2022-20856
Same Patch Batch · Cisco · 2022-09-30 · 16 CVEs total
| CVE-2022-20919 | 8.6 HIGH | Cisco IOS and IOS XE Software Common Industrial Protocol Request Denial of Service Vulnera |
| CVE-2022-20848 | 8.6 HIGH | Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst 9100 Series Access Poi |
| CVE-2022-20847 | 8.6 HIGH | Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family DHCP Processing Den |
| CVE-2022-20855 | 7.9 HIGH | Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst Access Points Privileg |
| CVE-2022-20818 | 7.8 HIGH | Cisco SD-WAN Software Privilege Escalation Vulnerabilities |
| CVE-2022-20775 | 7.8 HIGH | Cisco SD-WAN Software Privilege Escalation Vulnerability |
| CVE-2022-20945 | 7.4 HIGH | Cisco Catalyst 9100 Series Access Points Association Request Denial of Service Vulnerabili |
| CVE-2022-20769 | 7.4 HIGH | Cisco Wireless LAN Controller AireOS Software FIPS Mode Denial of Service Vulnerability |
| CVE-2022-20930 | 6.7 MEDIUM | Cisco SD-WAN Software Arbitrary File Corruption Vulnerability |
| CVE-2022-20810 | 6.5 MEDIUM | Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family SNMP Information Di |
| CVE-2022-20662 | 6.1 MEDIUM | Cisco Duo for macOS Authentication Bypass Vulnerability |
| CVE-2022-20851 | 5.5 MEDIUM | Cisco IOS XE Software Web UI Command Injection Vulnerability |
| CVE-2022-20850 | 5.5 MEDIUM | Cisco SD-WAN Arbitrary File Deletion Vulnerability |
| CVE-2022-20844 | 5.3 MEDIUM | Cisco Software-Defined Application Visibility and Control on Cisco vManage Static Username |
| CVE-2022-20728 | 4.7 MEDIUM | Cisco Access Points VLAN Bypass from Native VLAN Vulnerability |
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