SB2022112928 - Multiple vulnerabilities in Discourse

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Main Vulnerability Database SB2022112928

SB2022112928 - Multiple vulnerabilities in Discourse

Published: November 29, 2022

Security Bulletin ID SB2022112928
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Partial DoS

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Input validation error (CVE-ID: CVE-2022-41921)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to missing limits on the amount of text published by application users. A remote user post a chat message of an unlimited lengt and perform a denial of service (DoS) attack.


2) Improper access control (CVE-ID: CVE-2022-41944)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote user can see notifications for topics they no longer have access to.


Remediation

Install update from vendor's website.

References