CVE-2021-26639 : Exploit Details and Defense Strategies
Discover the details of CVE-2021-26639, a high-severity vulnerability in WISA Smart Wing CMS allowing remote attackers to download files without validation.
This article provides insights into CVE-2021-26639, a vulnerability in WISA Smart Wing CMS that allows remote attackers to download server files without proper validation.
Understanding CVE-2021-26639
This section delves into the details of the vulnerability.
What is CVE-2021-26639?
CVE-2021-26639 is a vulnerability in WISA Smart Wing CMS that arises due to the lack of input validation for specific functions. This flaw enables remote attackers to extract all server files without system login.
The Impact of CVE-2021-26639
With a CVSS base score of 8.1, this vulnerability has a high severity level with significant confidentiality and integrity impacts. Attackers can exploit this flaw via network access, with low privileges required and no user interaction.
Technical Details of CVE-2021-26639
This section covers the technical aspects of the vulnerability.
Vulnerability Description
The vulnerability in WISA Smart Wing CMS stems from inadequate input validation, allowing unauthorized file downloads by remote attackers.
Affected Systems and Versions
The affected product is the Smart Wing CMS by WISA corp. on Linux platforms, specifically versions below r18715.20211229.
Exploitation Mechanism
Remote attackers can exploit this vulnerability over the network to access and exfiltrate server files without the need for user interaction.
Mitigation and Prevention
This section focuses on mitigating the risks associated with CVE-2021-26639.
Immediate Steps to Take
To address this vulnerability, users are advised to apply security patches provided by the vendor. Additionally, it is crucial to monitor system logs for any suspicious activities.
Long-Term Security Practices
Implementing robust input validation mechanisms, conducting regular security audits, and promoting security awareness among staff can bolster long-term defense against such vulnerabilities.
Patching and Updates
Regularly update the Smart Wing CMS to versions beyond r18715.20211229 to mitigate the risk of exploitation.