CVE-2019-15527 : Vulnerability Insights and Analysis
Learn about CVE-2019-15527, a command injection vulnerability in D-Link DIR-823G devices. Find out the impact, affected systems, exploitation method, and mitigation steps.
A vulnerability has been identified in D-Link DIR-823G devices running firmware V1.0.2B05. The issue relates to a command injection found in HNAP1, which can be exploited with Authentication. This injection occurs through the utilization of shell metacharacters in the MaxIdTime field when configuring SetWanSettings.
Understanding CVE-2019-15527
This CVE identifies a command injection vulnerability in D-Link DIR-823G devices.
What is CVE-2019-15527?
CVE-2019-15527 is a security vulnerability found in D-Link DIR-823G devices that allows attackers to execute commands through shell metacharacters in the MaxIdTime field.
The Impact of CVE-2019-15527
The vulnerability can be exploited with Authentication, potentially leading to unauthorized command execution and compromising the device's security.
Technical Details of CVE-2019-15527
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability involves a command injection in HNAP1, specifically through the use of shell metacharacters in the MaxIdTime field for SetWanSettings configuration.
Affected Systems and Versions
- Affected Device: D-Link DIR-823G
- Firmware Version: V1.0.2B05
Exploitation Mechanism
Attackers can exploit this vulnerability by inserting malicious shell metacharacters in the MaxIdTime field, allowing unauthorized command execution.
Mitigation and Prevention
Protecting systems from CVE-2019-15527 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update the firmware of D-Link DIR-823G devices to the latest version that addresses the vulnerability.
- Implement strong authentication mechanisms to prevent unauthorized access.
Long-Term Security Practices
- Regularly monitor and audit device configurations for any unauthorized changes.
- Educate users on safe practices to prevent social engineering attacks.
Patching and Updates
- Stay informed about security updates from D-Link and apply patches promptly to mitigate known vulnerabilities.