CVE-2020-3174— Cisco NX-OS Software Anycast Gateway Invalid ARP Vulnerability
Quick assessment
Affected
Cisco Cisco NX-OS Software 7.3(2)D1(1d)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Cisco NX-OS Software是美国思科（Cisco）公司的一套交换机使用的数据中心级操作系统软件。 Cisco NX-OS Software中的选播网关功能存在数据伪造问题漏洞，该漏洞源于程序没有正确验证所接收的Address Resolution Protocol条目。攻击者可通过发送恶意的GARP数据包利用该漏洞造成ARP表单损坏。以下产品及版本受到影响：Nexus 3000 Series Switches；Nexus 7000 Series Switches；Nexus 9000 Ser
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2020-3174
Vulnerability Information
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Vulnerability Title
Cisco NX-OS Software Anycast Gateway Invalid ARP Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the anycast gateway feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a device to learn invalid Address Resolution Protocol (ARP) entries. The ARP entries are for nonlocal IP addresses for the subnet. The vulnerability is due to improper validation of a received gratuitous ARP (GARP) request. An attacker could exploit this vulnerability by sending a malicious GARP packet on the local subnet to cause the ARP table on the device to become corrupted. A successful exploit could allow the attacker to populate the ARP table with incorrect entries, which could lead to traffic disruptions.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
对数据真实性的验证不充分
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco NX-OS Software 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco NX-OS Software是美国思科（Cisco）公司的一套交换机使用的数据中心级操作系统软件。 Cisco NX-OS Software中的选播网关功能存在数据伪造问题漏洞，该漏洞源于程序没有正确验证所接收的Address Resolution Protocol条目。攻击者可通过发送恶意的GARP数据包利用该漏洞造成ARP表单损坏。以下产品及版本受到影响：Nexus 3000 Series Switches；Nexus 7000 Series Switches；Nexus 9000 Ser
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 NX-OS Software 7.3(2)D1(1d) | unspecified ~ n/a | - |
|
II. Public POCs for CVE-2020-3174
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2020-3174 (1)
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-nxos-arp vendor-advisory x_refsource_CISCO
Same Patch Batch · Cisco · 2020-02-26 · 11 CVEs total
| CVE-2020-3165 | Cisco NX-OS Software Border Gateway Protocol MD5 Authentication Bypass Vulnerability | |
| CVE-2020-3175 | Cisco MDS 9000 Series Multilayer Switches Denial of Service Vulnerability | |
| CVE-2020-3173 | Cisco UCS Manager Software Local Management CLI Command Injection Vulnerability | |
| CVE-2020-3172 | Cisco FXOS and NX-OS Software Cisco Discovery Protocol Arbitrary Code Execution and Denial | |
| CVE-2020-3171 | Cisco FXOS and UCS Manager Software Local Management CLI Command Injection Vulnerability | |
| CVE-2020-3170 | Cisco NX-OS Software NX-API Denial of Service Vulnerability | |
| CVE-2020-3169 | Cisco FXOS Software CLI Command Injection Vulnerability | |
| CVE-2020-3168 | Cisco Nexus 1000V Switch for VMware vSphere Secure Login Enhancements Denial of Service Vu | |
| CVE-2020-3167 | Cisco FXOS and UCS Manager Software CLI Command Injection Vulnerability | |
| CVE-2020-3166 | Cisco FXOS Software CLI Arbitrary File Read and Write Vulnerability |
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V. Comments for CVE-2020-3174
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