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I. Basic Information for CVE-2021-42073
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
An issue was discovered in Barrier before 2.4.0. An attacker can enter an active session state with the barriers component (aka the server-side implementation of Barrier) simply by supplying a client label that identifies a valid client configuration. This label is "Unnamed" by default but could instead be guessed from hostnames or other publicly available information. In the active session state, an attacker can capture input device events from the server, and also modify the clipboard content on the server.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Barrier 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Barrier是一种模仿 Kvm 切换器功能的软件。 Barrier 存在授权问题漏洞,该漏洞源于在2.4.0之前的Barrier中发现了一个问题。攻击者可利用该漏洞只需提供一个标识有效客户端配置的客户端标签,就可以使用Barrier组件(也就是Barrier的服务器端实现)进入活动会话状态。
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
-n/a n/a -
II. Public POCs for CVE-2021-42073
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III. Intelligence Information for CVE-2021-42073
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IV. Related Vulnerabilities
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