CVE-2022-47191 Explained : Impact and Mitigation
Learn about CVE-2022-47191, a privilege escalation vulnerability in Generex UPS CS141 versions below 2.06, allowing remote attackers to escalate privileges. Find out the impact, technical details, and mitigation steps in this article.
A privilege escalation vulnerability has been discovered in Generex UPS CS141 versions below 2.06, allowing a remote attacker to upload a firmware file with modified permissions to escalate privileges.
Understanding CVE-2022-47191
This section delves into the details of the CVE-2022-47191 vulnerability.
What is CVE-2022-47191?
Generex UPS CS141 versions below 2.06 are susceptible to a file upload vulnerability that enables a remote attacker to upload a firmware file with altered permissions, potentially leading to privilege escalation.
The Impact of CVE-2022-47191
The impact of this vulnerability is rated as medium severity with a CVSS base score of 4.3. It allows an attacker to escalate privileges on affected systems.
Technical Details of CVE-2022-47191
In this section, we will explore the technical aspects of the CVE-2022-47191 vulnerability.
Vulnerability Description
The vulnerability lies in the file upload functionality of Generex UPS CS141 versions below 2.06, which can be exploited by uploading a specially crafted firmware file with modified permissions.
Affected Systems and Versions
Vendor: Generex Product: UPS CS141 Affected Version: Below 2.06
Exploitation Mechanism
A remote attacker can exploit this vulnerability by uploading a firmware file containing a file with altered permissions, thereby gaining escalated privileges on the target system.
Mitigation and Prevention
This section outlines the steps to mitigate and prevent CVE-2022-47191.
Immediate Steps to Take
Upgrade to Generex CS141 version 2.12, the release that addresses and fixes this vulnerability. Ensure all firmware files are from trusted sources and have correct permissions.
Long-Term Security Practices
Regularly update and patch the software to the latest versions to protect against known vulnerabilities. Conduct security audits to identify and address any potential security weaknesses.
Patching and Updates
Generex has released CS141 version 2.12 in December 2022, containing the necessary fixes for CVE-2022-47191.