CVE-2019-5071 Explained : Impact and Mitigation
Learn about CVE-2019-5071 affecting Tenda AC9 Router, allowing command injection via HTTP POST requests. Understand the impact, affected versions, and mitigation steps.
The Tenda AC9 Router AC1200 Smart Dual-Band Gigabit WiFi Route (AC9V1.0 Firmware V15.03.05.16multiTRU) is vulnerable to command injection through the /goform/WanParameterSetting feature, allowing attackers to execute arbitrary code.
Understanding CVE-2019-5071
This CVE involves a command injection vulnerability in the Tenda AC9 Router AC1200 Smart Dual-Band Gigabit WiFi Route.
What is CVE-2019-5071?
The vulnerability in the /goform/WanParameterSetting feature of the Tenda AC9 Router allows attackers to inject commands via specially crafted HTTP POST requests, potentially leading to code execution.
The Impact of CVE-2019-5071
- CVSS Base Score: 7.8 (High)
- Attack Vector: Local
- Attack Complexity: Low
- Privileges Required: Low
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Technical Details of CVE-2019-5071
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability allows for command injection in the DNS1 post parameters of the Tenda AC9 Router, enabling attackers to execute malicious code.
Affected Systems and Versions
- Affected Product: Tenda AC9
- Affected Versions:
- AC9V1.0 Firmware V15.03.05.16multiTRU
- AC9V1.0 Firmware V15.03.05.14_EN
Exploitation Mechanism
By sending a specifically designed HTTP POST request containing malicious commands, an attacker can exploit the vulnerability and execute arbitrary code.
Mitigation and Prevention
Protecting systems from CVE-2019-5071 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by the vendor.
- Monitor network traffic for any suspicious activity.
- Restrict access to the vulnerable feature.
Long-Term Security Practices
- Regularly update firmware and software.
- Conduct security assessments and penetration testing.
- Educate users on safe browsing habits.
Patching and Updates
Ensure that the Tenda AC9 Router is updated with the latest firmware to mitigate the vulnerability.