CVE-2023-31447 : Vulnerability Insights and Analysis
Discover the impact of CVE-2023-31447, a vulnerability in user_login.cgi on Draytek Vigor2620 and Vigor2925 devices allowing for arbitrary code execution. Learn mitigation steps.
A vulnerability has been discovered in user_login.cgi on Draytek Vigor2620 devices before 3.9.8.4 and all versions of Vigor2925 devices. Attackers can exploit this vulnerability to execute arbitrary code by sending a crafted payload to modify the content of the code segment and insert shellcode.
Understanding CVE-2023-31447
This section provides insights into the nature and impact of CVE-2023-31447.
What is CVE-2023-31447?
CVE-2023-31447 is a security flaw in Draytek Vigor2620 and Vigor2925 devices that allows attackers to execute arbitrary code by manipulating user_login.cgi.
The Impact of CVE-2023-31447
The vulnerability enables unauthorized attackers to take control of affected devices, potentially leading to unauthorized access, data theft, or system compromise.
Technical Details of CVE-2023-31447
Explore the specific technical aspects of the CVE-2023-31447 vulnerability.
Vulnerability Description
The flaw in user_login.cgi can be exploited by attackers to modify code content and execute arbitrary code, posing a significant risk to device security.
Affected Systems and Versions
All versions of Draytek Vigor2925 devices and Vigor2620 devices before 3.9.8.4 are impacted by this vulnerability.
Exploitation Mechanism
By sending a tailored payload to user_login.cgi, threat actors can inject shellcode, altering the code segment to execute malicious commands.
Mitigation and Prevention
Learn about the actions to mitigate and prevent the exploitation of CVE-2023-31447.
Immediate Steps to Take
Users should update their Draytek devices to the latest firmware version to eliminate the vulnerability. Additionally, restrict unauthorized access to the user_login.cgi interface.
Long-Term Security Practices
Implement robust network security measures, such as network segmentation and access control, to reduce the risk of future attacks.
Patching and Updates
Regularly check for updates and patches from Draytek to ensure that your devices are protected against known vulnerabilities.