SB2023031013 - Improper Authentication in Ivanti Avalanche
Published: March 10, 2023 Updated: May 16, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) Improper Authentication (CVE-ID: CVE-2022-44574)
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)
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)
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)
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)
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.
References
- https://www.zerodayinitiative.com/advisories/ZDI-23-228/
- https://forums.ivanti.com/s/article/Avalanche-ZDI-CAN-19513-Security-Advisory?language=en_US
- https://www.zerodayinitiative.com/advisories/ZDI-23-453/
- https://forums.ivanti.com/s/article/New-Avalanche-Landing-Page?language=en_US
- https://www.zerodayinitiative.com/advisories/ZDI-23-454/
- https://www.zerodayinitiative.com/advisories/ZDI-23-455/
- https://www.zerodayinitiative.com/advisories/ZDI-23-456/