CVE-2019-7297 : Vulnerability Insights and Analysis
Learn about CVE-2019-7297 affecting D-Link DIR-823G devices. Discover the impact, affected systems, exploitation method, and mitigation steps to secure your network.
A vulnerability has been found on D-Link DIR-823G devices running firmware versions up to 1.02B03, allowing attackers to execute arbitrary OS commands remotely.
Understanding CVE-2019-7297
What is CVE-2019-7297?
This vulnerability is a command injection flaw that enables attackers to exploit the system function with untrusted inputs, leading to remote command execution.
The Impact of CVE-2019-7297
The vulnerability allows attackers to execute any command on affected devices, compromising their security and potentially leading to unauthorized access.
Technical Details of CVE-2019-7297
Vulnerability Description
The flaw arises from the GetNetworkTomographyResult function using the system function with an untrusted Address parameter, enabling attackers to execute commands via crafted /HNAP1 requests.
Affected Systems and Versions
- D-Link DIR-823G devices with firmware versions up to 1.02B03
Exploitation Mechanism
Attackers exploit the vulnerability by inserting shell metacharacters in specially crafted /HNAP1 requests, gaining control over the input to execute arbitrary commands.
Mitigation and Prevention
Immediate Steps to Take
- Update the firmware to the latest version provided by D-Link.
- Implement network segmentation to limit the impact of potential attacks.
Long-Term Security Practices
- Regularly monitor and audit network traffic for suspicious activities.
- Enforce strong access controls and authentication mechanisms.
Patching and Updates
- Stay informed about security updates from D-Link and apply patches promptly to mitigate the vulnerability.