CVE-2022-20679— Cisco IOS XE Software IPSec Denial of Service Vulnerability
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I. Basic Information for CVE-2022-20679
Vulnerability Information
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Vulnerability Title
Cisco IOS XE Software IPSec Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the IPSec decryption routine of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to buffer exhaustion that occurs while traffic on a configured IPsec tunnel is being processed. An attacker could exploit this vulnerability by sending traffic to an affected device that has a maximum transmission unit (MTU) of 1800 bytes or greater. A successful exploit could allow the attacker to cause the device to reload. To exploit this vulnerability, the attacker may need access to the trusted network where the affected device is in order to send specific packets to be processed by the device. All network devices between the attacker and the affected device must support an MTU of 1800 bytes or greater. This access requirement could limit the possibility of a successful exploit.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
多款Cisco产品输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS等都是美国思科（Cisco）公司的产品。Cisco IOS是一套为其网络设备开发的操作系统。IOS XE是一套为其网络设备开发的操作系统。Cisco IOS XE Software是一个操作系统。 Cisco IOS XE 存在输入验证错误漏洞，该漏洞源于攻击者可以通过 IPSec 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-2022-20679
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-qfp-ipsec-GQmqvtqVvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2022-20679
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-2022-20682 | 8.6 HIGH | Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Se |
| 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-2022-20758 | 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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Same weakness: CWE-20
V. Comments for CVE-2022-20679
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