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I. Basic Information for CVE-2021-1619
Vulnerability Information

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Vulnerability Title
Cisco IOS XE Software NETCONF and RESTCONF Authentication Bypass Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the authentication, authorization, and accounting (AAA) function of Cisco IOS XE Software could allow an unauthenticated, remote attacker to bypass NETCONF or RESTCONF authentication and do either of the following: Install, manipulate, or delete the configuration of an affected device Cause memory corruption that results in a denial of service (DoS) on an affected device This vulnerability is due to an uninitialized variable. An attacker could exploit this vulnerability by sending a series of NETCONF or RESTCONF requests to an affected device. A successful exploit could allow the attacker to use NETCONF or RESTCONF to install, manipulate, or delete the configuration of a network device or to corrupt memory on the device, resulting a DoS.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用未经初始化的指针
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IOS 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS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 XE Software 存在缓冲区错误漏洞,该漏洞源于变量未初始化造成的。攻击者可利用该漏洞向受影响的设备发送一系列NETCONF或RESTCONF请求来安装、操作或删除网络设备的配置,或损坏设备上的内存。
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
VendorProductAffected VersionsCPESubscribe
CiscoCisco IOS XE Software n/a -
II. Public POCs for CVE-2021-1619
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III. Intelligence Information for CVE-2021-1619
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