Cisco IOS and IOS XE Software SNMPv3 Configuration Restriction Vulnerability

A vulnerability in the implementation of the Simple Network Management Protocol Version 3 (SNMPv3) feature of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to poll an affected device using SNMP, even if the device is configured to deny SNMP traffic from an unauthorized source or the SNMPv3 username is removed from the configuration. This vulnerability exists because of the way that the SNMPv3 configuration is stored in the Cisco IOS Software and Cisco IOS XE Software startup configuration. An attacker could exploit this vulnerability by polling an affected device from a source address that should have been denied. A successful exploit could allow the attacker to perform SNMP operations from a source that should be denied. Note: The attacker has no control of the SNMPv3 configuration. To exploit this vulnerability, the attacker must have valid SNMPv3 user credentials. For more information, see the section of this advisory.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

配置

Cisco IOS和Cisco IOS XE 配置错误漏洞

Cisco IOS和Cisco IOS XE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。Cisco IOS XE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 IOS和Cisco IOS XE存在配置错误漏洞，该漏洞源于SNMPv3配置存储不当，可能导致未授权访问。

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