CVE-2018-17786 Explained : Impact and Mitigation
Learn about CVE-2018-17786, a vulnerability in D-Link DIR-823G devices allowing remote code execution. Find mitigation steps and the impact of this security issue.
Remote attackers can exploit the lack of authentication on D-Link DIR-823G devices to execute arbitrary code through certain scripts like ExportSettings.sh, upload_settings.cgi, GetDownLoadSyslog.sh, and upload_firmware.cgi.
Understanding CVE-2018-17786
On D-Link DIR-823G devices, ExportSettings.sh, upload_settings.cgi, GetDownLoadSyslog.sh, and upload_firmware.cgi do not require authentication, allowing remote attackers to execute arbitrary code.
What is CVE-2018-17786?
This CVE refers to a vulnerability in D-Link DIR-823G devices that enables remote attackers to run arbitrary code due to the absence of authentication requirements on specific scripts.
The Impact of CVE-2018-17786
The vulnerability allows attackers to execute malicious code remotely, potentially leading to unauthorized access, data theft, or system compromise.
Technical Details of CVE-2018-17786
Vulnerability Description
- Lack of authentication on D-Link DIR-823G devices
- Vulnerable scripts: ExportSettings.sh, upload_settings.cgi, GetDownLoadSyslog.sh, upload_firmware.cgi
Affected Systems and Versions
- Product: D-Link DIR-823G
- Version: Not specified
Exploitation Mechanism
- Remote attackers exploit the absence of authentication on specific scripts to execute arbitrary code
Mitigation and Prevention
Immediate Steps to Take
- Disable remote access to vulnerable scripts
- Implement strong authentication mechanisms
- Monitor network traffic for suspicious activities
Long-Term Security Practices
- Regularly update firmware and security patches
- Conduct security audits and penetration testing
Patching and Updates
- Apply patches provided by D-Link to address the authentication bypass vulnerability