Learn about CVE-2021-21886, a directory traversal vulnerability in Lantronix PremierWave 2050 8.9.0.0R4 that allows information disclosure. Find out the impact, technical details, and mitigation steps.
A directory traversal vulnerability exists in the Web Manager FSBrowsePage functionality of Lantronix PremierWave 2050 8.9.0.0R4, allowing information disclosure through a specially crafted HTTP request.
Understanding CVE-2021-21886
This CVE describes a directory traversal vulnerability in Lantronix PremierWave 2050 8.9.0.0R4 that could lead to information disclosure when exploited by an attacker.
What is CVE-2021-21886?
CVE-2021-21886 is a vulnerability in the Web Manager FSBrowsePage functionality of Lantronix PremierWave 2050 8.9.0.0R4 that enables an attacker to make an authenticated HTTP request to disclose sensitive information.
The Impact of CVE-2021-21886
With a base CVSS score of 4.3 (Medium severity), the vulnerability poses a risk of information disclosure, requiring immediate attention to prevent exploitation by threat actors.
Technical Details of CVE-2021-21886
The technical details of CVE-2021-21886 include:
Vulnerability Description
The vulnerability allows attackers to perform directory traversal through specially crafted HTTP requests, potentially leading to information leaks.
Affected Systems and Versions
Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU) is affected by this vulnerability, putting systems with this version at risk.
Exploitation Mechanism
Exploitation involves making an authenticated HTTP request to trigger the directory traversal vulnerability and disclose information.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-21886, consider the following:
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates