CVE-2018-3890 : What You Need to Know
Learn about CVE-2018-3890, a high-severity vulnerability in Yi Home Camera 27US 1.8.7.0D firmware update feature allowing for code execution. Find mitigation steps and preventive measures here.
A vulnerability in the firmware update feature of Yi Home Camera 27US 1.8.7.0D allows for exploitable code execution, posing a significant security risk.
Understanding CVE-2018-3890
This CVE involves a command injection vulnerability in the Yi Home Camera 27US 1.8.7.0D firmware update feature, enabling attackers to execute arbitrary code.
What is CVE-2018-3890?
The vulnerability in the firmware update functionality of Yi Home Camera 27US 1.8.7.0D permits attackers to inject commands through a customized file, leading to the execution of malicious code.
The Impact of CVE-2018-3890
- CVSS Base Score: 7.6 (High Severity)
- Attack Vector: Physical
- Attack Complexity: Low
- Privileges Required: None
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Scope: Changed
- This vulnerability can be exploited by inserting an SD card, making it a critical security concern.
Technical Details of CVE-2018-3890
This section delves into the specific technical aspects of the CVE.
Vulnerability Description
The vulnerability allows for the execution of arbitrary code by exploiting a flaw in the logic of the firmware update feature.
Affected Systems and Versions
- Affected Product: Yi Technology Home Camera 27US 1.8.7.0D
Exploitation Mechanism
- Attackers can exploit this vulnerability by inserting a specially crafted file, triggering a logic flaw that enables command injection and subsequent code execution.
Mitigation and Prevention
Protecting systems from CVE-2018-3890 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Disable the firmware update feature if not essential
- Regularly monitor for unauthorized access or changes
- Implement network segmentation to limit the impact of potential attacks
Long-Term Security Practices
- Keep firmware and software up to date
- Conduct regular security assessments and penetration testing
- Educate users on safe practices and security awareness
Patching and Updates
- Apply security patches provided by the vendor promptly to address the vulnerability