CVE-2018-17881 Explained : Impact and Mitigation
Learn about CVE-2018-17881 affecting D-Link DIR-823G devices, allowing unauthorized users to change the admin password. Find mitigation steps and best practices here.
Devices manufactured by D-Link, specifically the model DIR-823G and version 2018-09-19, have a configuration called GoAhead that allows unauthorized execution of commands to change the admin password.
Understanding CVE-2018-17881
This CVE involves a vulnerability in D-Link DIR-823G devices that enables users to change the admin password without authentication.
What is CVE-2018-17881?
The vulnerability in D-Link DIR-823G devices allows users to execute /HNAP1 SetPasswdSettings commands without authentication, leading to an admin password change.
The Impact of CVE-2018-17881
This vulnerability poses a significant security risk as unauthorized users can change the admin password, potentially gaining full control over the device.
Technical Details of CVE-2018-17881
The technical aspects of the CVE.
Vulnerability Description
The GoAhead configuration in D-Link DIR-823G devices permits unauthorized execution of commands to change the admin password.
Affected Systems and Versions
- Product: D-Link DIR-823G
- Version: 2018-09-19
Exploitation Mechanism
Unauthorized users can exploit the vulnerability by executing specific commands without the need for authentication.
Mitigation and Prevention
Steps to address the CVE.
Immediate Steps to Take
- Disable remote access if not required
- Regularly monitor device logs for suspicious activities
Long-Term Security Practices
- Implement strong password policies
- Keep devices updated with the latest firmware
- Conduct regular security audits
Patching and Updates
Ensure that the affected devices are updated with the latest firmware patches to mitigate the vulnerability.