CVE-2021-38678 : Security Advisory and Response
Learn about CVE-2021-38678, an open redirect vulnerability in QNAP Systems Inc.'s QcalAgent. Find out the impact, affected versions, mitigation steps, and solutions to address the issue.
This article provides detailed information about CVE-2021-38678, an open redirect vulnerability in QcalAgent affecting QNAP Systems Inc.'s products.
Understanding CVE-2021-38678
CVE-2021-38678 refers to an open redirect vulnerability in QNAP's QcalAgent, allowing attackers to redirect users to malicious sites.
What is CVE-2021-38678?
An open redirect vulnerability in QNAP's QcalAgent enables attackers to redirect users to untrusted pages containing malware.
The Impact of CVE-2021-38678
If exploited, this vulnerability could lead to users being redirected to harmful websites, potentially exposing them to various cyber threats.
Technical Details of CVE-2021-38678
The vulnerability has a CVSS base score of 6.1 (Medium severity) with low impact on confidentiality and integrity. Attackers can exploit this issue over a network with user interaction required.
Vulnerability Description
The vulnerability allows attackers to craft URLs redirecting users to malicious websites, posing a significant security risk.
Affected Systems and Versions
QNAP's QcalAgent versions earlier than 1.1.7 are affected by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by enticing users to click on specially crafted links that redirect to malicious websites.
Mitigation and Prevention
To address CVE-2021-38678, QNAP released fixes in QcalAgent version 1.1.7 and later.
Immediate Steps to Take
Users should update QcalAgent to version 1.1.7 or later to mitigate the risk of exploitation.
Long-Term Security Practices
Regularly update software and educate users on potential phishing attacks to enhance overall security posture.
Patching and Updates
Stay informed about security advisories from QNAP and promptly apply patches to secure the system.