CVE-2021-1377— Cisco IOS and IOS XE Software ARP Resource Management Exhaustion Denial of Service Vulnerability
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I. Basic Information for CVE-2021-1377
Vulnerability Information
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Vulnerability Title
Cisco IOS and IOS XE Software ARP Resource Management Exhaustion Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in Address Resolution Protocol (ARP) management of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to prevent an affected device from resolving ARP entries for legitimate hosts on the connected subnets. This vulnerability exists because ARP entries are mismanaged. An attacker could exploit this vulnerability by continuously sending traffic that results in incomplete ARP entries. A successful exploit could allow the attacker to cause ARP requests on the device to be unsuccessful for legitimate hosts, resulting in a denial of service (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:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
资源管理错误
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IOS和IOS XE 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS和IOS XE都是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS Software and Cisco IOS XE Software 存在安全漏洞，该漏洞允许远程攻击者阻止受影响的设备解析连接子网中合法主机的ARP表项。
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
II. Public POCs for CVE-2021-1377
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-arp-mtfhBfjEvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2021-1377
Same Patch Batch · Cisco · 2021-03-24 · 45 CVEs total
| CVE-2021-1418 | 9.9 CRITICAL | Cisco Jabber Desktop and Mobile Client Software Vulnerabilities |
| CVE-2021-1417 | 9.9 CRITICAL | Cisco Jabber Desktop and Mobile Client Software Vulnerabilities |
| CVE-2021-1411 | 9.9 CRITICAL | Cisco Jabber Desktop and Mobile Client Software Vulnerabilities |
| CVE-2021-1471 | 9.9 CRITICAL | Cisco Jabber Desktop and Mobile Client Software Vulnerabilities |
| CVE-2021-1469 | 9.9 CRITICAL | Cisco Jabber Desktop and Mobile Client Software Vulnerabilities |
| CVE-2021-1373 | 8.6 HIGH | Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Se |
| CVE-2021-1446 | 8.6 HIGH | Cisco IOS XE Software DNS NAT Protocol Application Layer Gateway Denial of Service Vulnera |
| CVE-2021-1451 | 8.1 HIGH | Cisco IOS XE Software Easy Virtual Switching System Arbitrary Code Execution Vulnerability |
| CVE-2021-1433 | 8.1 HIGH | Cisco IOS XE SD-WAN Software vDaemon Buffer Overflow Vulnerability |
| CVE-2021-1392 | 7.8 HIGH | Cisco IOS and IOS XE Software Common Industrial Protocol Privilege Escalation Vulnerabili |
| CVE-2021-1437 | 7.5 HIGH | Cisco Aironet Access Points FlexConnect Upgrade Information Disclosure Vulnerability |
| CVE-2021-1431 | 7.5 HIGH | Cisco IOS XE SD-WAN Software vDaemon Denial of Service Vulnerability |
| CVE-2021-1352 | 7.4 HIGH | Cisco IOS XE Software DECnet Phase IV/OSI Denial of Service Vulnerability |
| CVE-2021-1439 | 7.4 HIGH | Cisco Aironet Access Points FlexConnect Multicast DNS Denial of Service Vulnerability |
| CVE-2021-1403 | 7.4 HIGH | Cisco IOS XE Software Web UI Cross-Site WebSocket Hijacking Vulnerability |
| CVE-2021-1432 | 7.3 HIGH | Cisco IOS XE SD-WAN Software Arbitrary Command Execution Vulnerability |
| CVE-2021-1453 | 6.8 MEDIUM | Cisco IOS XE Software for the Catalyst 9000 Family Arbitrary Code Execution Vulnerability |
| CVE-2021-1452 | 6.8 MEDIUM | Cisco IOS XE ROM Monitor Software for Cisco Industrial Switches OS Command Injection Vulne |
| CVE-2021-1398 | 6.8 MEDIUM | Cisco IOS XE Software Arbitrary Code Execution Vulnerability |
| CVE-2021-1449 | 6.7 MEDIUM | Cisco Access Point Software Arbitrary Code Execution Vulnerability |
Showing top 20 of 45 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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Cisco IOx Application Hosting Environment Command Injection - CVE-2022-20920
Cisco IOS and IOS XE Software SSH Denial of Service Vulnera - CVE-2022-20919
Cisco IOS and IOS XE Software Common Industrial Protocol Req
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V. Comments for CVE-2021-1377
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