CVE-2021-34355 : What You Need to Know
Learn about CVE-2021-34355, a cross-site scripting (XSS) vulnerability in QNAP Photo Station. Explore the impact, affected versions, exploitation, and mitigation strategies.
A cross-site scripting (XSS) vulnerability in QNAP Systems Inc.'s Photo Station allows remote attackers to inject malicious code. This article provides insights into the impact, technical details, and mitigation strategies.
Understanding CVE-2021-20657
This section delves into the details of the stored XSS vulnerability in Photo Station.
What is CVE-2021-20657?
CVE-2021-20657 is a cross-site scripting (XSS) vulnerability affecting QNAP NAS devices running Photo Station. The vulnerability enables attackers to inject and execute malicious scripts remotely.
The Impact of CVE-2021-20657
The vulnerability poses a high severity risk with a CVSS base score of 7.6 (High). It affects confidentiality and could lead to the injection of malicious code by remote attackers, potentially compromising the integrity of the system.
Technical Details of CVE-2021-20657
Explore the specific technical aspects of the vulnerability in Photo Station.
Vulnerability Description
The stored XSS vulnerability allows attackers to inject and execute malicious scripts remotely on QNAP NAS devices with affected versions of Photo Station.
Affected Systems and Versions
Photo Station versions less than 5.4.10, 5.7.13, and 6.0.18 (released before August and September 2021) are vulnerable to this exploit.
Exploitation Mechanism
Remote attackers can exploit this vulnerability through a crafted script injection, potentially leading to unauthorized access and data breaches.
Mitigation and Prevention
Discover the steps to mitigate and prevent the risks associated with CVE-2021-20657.
Immediate Steps to Take
Users are advised to update their Photo Station installations to versions 5.4.10, 5.7.13, or 6.0.18 and above to patch the vulnerability and prevent exploitation.
Long-Term Security Practices
To enhance system security, users should implement regular security updates, conduct security audits, and monitor for any unusual activities on the network.
Patching and Updates
Stay updated with the latest security patches and firmware updates provided by QNAP Systems Inc. to protect against potential vulnerabilities.