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CVE-2019-1969— Cisco NX-OS Software SNMP Access Control List Configuration Name Bypass Vulnerability

Quick assessment

Affected
Cisco Cisco NX-OS Software
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中的简单网络管理协议访问控制列功能存在权限许可和访问控制问题漏洞，该漏洞源于当所配置的ACL名称达到最大的32 ASCII字符长度时，程序进行了错误地检查。远程攻击者可利用该漏洞进行SNMP轮询。以下产品及版本受到影响：Cisco Nexus 3000 Series Switches；Nexus 3500 Platform Switches；Nexus 3

AI Predicted 6.5 Difficulty: Moderate EPSS 1.38% · P71
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I. Basic Information for CVE-2019-1969

Vulnerability Information
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Vulnerability Title
Cisco NX-OS Software SNMP Access Control List Configuration Name Bypass Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the implementation of the Simple Network Management Protocol (SNMP) Access Control List (ACL) feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to perform SNMP polling of an affected device, even if it is configured to deny SNMP traffic. The vulnerability is due to an incorrect length check when the configured ACL name is the maximum length, which is 32 ASCII characters. An attacker could exploit this vulnerability by performing SNMP polling of an affected device. A successful exploit could allow the attacker to perform SNMP polling that should have been denied. The attacker has no control of the configuration of the SNMP ACL name.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
权限、特权和访问控制
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco NX-OS Software 权限许可和访问控制问题漏洞
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中的简单网络管理协议访问控制列功能存在权限许可和访问控制问题漏洞，该漏洞源于当所配置的ACL名称达到最大的32 ASCII字符长度时，程序进行了错误地检查。远程攻击者可利用该漏洞进行SNMP轮询。以下产品及版本受到影响：Cisco Nexus 3000 Series Switches；Nexus 3500 Platform Switches；Nexus 3
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 unspecified ~ 9.2(3) -

II. Public POCs for CVE-2019-1969

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III. Intelligence Information for CVE-2019-1969

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Vendor Advisories for CVE-2019-1969 (1)

Same Patch Batch · Cisco · 2019-08-29 · 5 CVEs total

CVE-2019-1967 Cisco NX-OS Software Network Time Protocol Denial of Service Vulnerability
CVE-2019-1966 Cisco Unified Computing System Fabric Interconnect root Privilege Escalation Vulnerability
CVE-2019-1977 Cisco Nexus 9000 Series Fabric Switches ACI Mode Border Leaf Endpoint Learning Vulnerabili
CVE-2019-1968 Cisco NX-OS Software NX-API Denial of Service Vulnerability

IV. Related Vulnerabilities

Same product: Cisco NX-OS Software
Same vendor: Cisco
Same weakness: CWE-264

V. Comments for CVE-2019-1969

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