SB2023031013 - Improper Authentication in Ivanti Avalanche



SB2023031013 - Improper Authentication in Ivanti Avalanche

Published: March 10, 2023 Updated: May 16, 2023

Security Bulletin ID SB2023031013
CSH Severity
High
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 20% Medium 60% Low 20%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 vulnerabilities.


1) Improper Authentication (CVE-ID: CVE-2022-44574)

CWE-ID: CWE-287 - Improper Authentication

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


The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests within the Remote Control Server RCServlet servlet. A remote attacker can bypass authentication process and gain unauthorized access to the application.


2) Improper Authentication (CVE-ID: CVE-2023-28125)

CWE-ID: CWE-287 - Improper Authentication

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


The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests within the InfoRail service. A remote user can bypass authentication process and gain unauthorized access to the application.


3) Improper Authentication (CVE-ID: CVE-2023-28126)

CWE-ID: CWE-287 - Improper Authentication

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


The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to the exposure of a dangerous method or function to unprivileged users within the GetSettings class. A remote user can bypass authentication process and gain unauthorized access to the application.


4) Path traversal (CVE-ID: CVE-2023-28127)

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:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


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

The vulnerability exists due to input validation error when processing directory traversal sequences within the getLogFile function. A remote user can send a specially crafted HTTP request and read arbitrary files on the system.


5) Arbitrary file upload (CVE-ID: CVE-2023-28128)

CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type

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


The vulnerability allows a remote user to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload within the FileStoreConfig app. A remote administrator can upload a malicious file and execute it on the server.


Remediation

Install update from vendor's website.