CVE-2022-20847— Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family DHCP Processing Denial of Service Vulnerability
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I. Basic Information for CVE-2022-20847
Vulnerability Information
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Vulnerability Title
Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family DHCP Processing Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the DHCP processing functionality 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. This vulnerability is due to the improper processing of DHCP messages. An attacker could exploit this vulnerability by sending malicious DHCP messages to an affected device. A successful exploit could allow the attacker to 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
资源管理错误
Source: NVD (National Vulnerability Database)
Vulnerability Title
多款Cisco产品 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XE Software和 Cisco Catalyst 9000都是美国思科（Cisco）公司的产品。Cisco IOS XE Software是一个操作系统。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 Catalyst 9000是一个交换机。 Cisco IOS XE Catalyst 9000存在资源管理错误漏洞，该漏洞源于处理DHCP消息不当。远程攻击者利用该漏洞执行拒绝服务（DoS）攻击。
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-2022-20847
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|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wlc-dhcp-dos-76pCjPxKvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2022-20847
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-2022-20856 | 8.6 HIGH | Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Mobility Den |
| CVE-2022-20848 | 8.6 HIGH | Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst 9100 Series Access Poi |
| 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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