SB2023121358 - Multiple vulnerabilities in Umbraco CMS

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2023121358

SB2023121358 - Multiple vulnerabilities in Umbraco CMS

Published: December 13, 2023

Security Bulletin ID SB2023121358
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Information Exposure Through an Error Message (CVE-ID: CVE-2023-49278)

CWE-ID: CWE-209 - Information Exposure Through an Error Message

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


The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to a missing brute-force protection. A remote attacker can enumerate usernames on the website.


2) Path traversal (CVE-ID: CVE-2023-49089)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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


The vulnerability allows a remote user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in the backoffice component. A remote user with permissions to create packages can send a specially crafted HTTP request and write arbitrary files outside of the expected location.


3) Information exposure through an error message (CVE-ID: CVE-2023-49274)

CWE-ID: CWE-209 - Information Exposure Through an Error Message

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


The vulnerability allows a remote attacker to enumerate registered users.

The vulnerability exists due to incorrect implementation of password reset feature, when SMTP is not setup correctly. A remote attacker can enumerate registered users.


4) Improper access control (CVE-ID: CVE-2023-49273)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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 with Editor privileges can bypass implemented security restrictions and gain unauthorized access to the application.


Remediation

Install update from vendor's website.

References