CVE-2021-26740 : What You Need to Know
Learn about CVE-2021-26740, an arbitrary file upload flaw in 'sysupload.php' of millken doyocms 2.3 allowing hackers to execute code. Explore impact, mitigation, and prevention measures.
A file upload vulnerability in 'sysupload.php' within 'millken doyocms 2.3' can be exploited by attackers to execute arbitrary code.
Understanding CVE-2021-26740
This CVE involves an arbitrary file upload vulnerability in a specific PHP file within the 'millken doyocms 2.3' application.
What is CVE-2021-26740?
The CVE-2021-26740 vulnerability allows threat actors to upload malicious files through 'sysupload.php' in the affected system, enabling them to execute arbitrary code.
The Impact of CVE-2021-26740
The impact of this vulnerability is severe as attackers can leverage it to run unauthorized code on the target system, potentially leading to data theft, system compromise, or other malicious activities.
Technical Details of CVE-2021-26740
This section delves into the specific technical aspects of the CVE.
Vulnerability Description
The vulnerability lies in the 'sysupload.php' file of 'millken doyocms 2.3', allowing attackers to upload and execute arbitrary files, posing a significant security risk.
Affected Systems and Versions
Systems running 'millken doyocms 2.3' are susceptible to this vulnerability, highlighting the importance of prompt mitigation measures and updates.
Exploitation Mechanism
By exploiting this vulnerability, threat actors can bypass file upload restrictions and gain unauthorized access to execute malicious code, ultimately compromising the system's integrity.
Mitigation and Prevention
Protecting systems from CVE-2021-26740 involves a series of necessary steps and best practices.
Immediate Steps to Take
Immediate actions include restricting access to the vulnerable 'sysupload.php' file, implementing strong input validation mechanisms, and monitoring file uploads for malicious content.
Long-Term Security Practices
Establishing a robust security posture through regular security assessments, penetration testing, and user awareness training can enhance overall resilience against similar vulnerabilities.
Patching and Updates
Promptly applying security patches and updates released by the software vendor is crucial to remediate the vulnerability and prevent potential exploitation.