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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-42073 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.openwall.com/lists/oss-security/2021/11/02/4 Exploit  Mailing List  Third Party Advisory 
https://github.com/debauchee/barrier/commit/229abab99f39f11624e5651f819e7f1f8eddedcc
https://github.com/debauchee/barrier/commit/b5adc93e2bd74cb094f91ff595c07f321a489f3e
https://github.com/debauchee/barrier/releases/tag/v2.4.0 Release Notes  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-384 Session Fixation cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-42073
NVD Published Date:
11/07/2021
NVD Last Modified:
11/13/2023
Source:
MITRE