CVE-2019-7391 Explained : Impact and Mitigation
Learn about CVE-2019-7391 affecting ZyXEL VMG3312-B10B DSL-491HNU-B1B v2 devices. Understand the CSRF vulnerability impact, affected systems, exploitation, and mitigation steps.
ZyXEL VMG3312-B10B DSL-491HNU-B1B v2 devices are vulnerable to a CSRF (Cross-Site Request Forgery) issue on the login-page.cgi page.
Understanding CVE-2019-7391
This CVE entry describes a security vulnerability in ZyXEL VMG3312-B10B DSL-491HNU-B1B v2 devices that could allow attackers to perform CSRF attacks.
What is CVE-2019-7391?
This CVE identifies a specific vulnerability in ZyXEL VMG3312-B10B DSL-491HNU-B1B v2 devices that enables malicious actors to exploit the login-page.cgi page using CSRF techniques.
The Impact of CVE-2019-7391
The CSRF vulnerability in ZyXEL VMG3312-B10B DSL-491HNU-B1B v2 devices could lead to unauthorized actions being performed on behalf of an authenticated user, potentially compromising sensitive data or executing malicious commands.
Technical Details of CVE-2019-7391
ZyXEL VMG3312-B10B DSL-491HNU-B1B v2 CSRF Vulnerability
Vulnerability Description
The vulnerability allows attackers to forge requests that are executed by the web application on behalf of the victim, leading to unauthorized actions.
Affected Systems and Versions
- Product: ZyXEL VMG3312-B10B DSL-491HNU-B1B v2
- Vendor: ZyXEL
- Version: Not specified
Exploitation Mechanism
Attackers can craft malicious requests and trick authenticated users into executing unintended actions on the login-page.cgi page.
Mitigation and Prevention
Protecting against CSRF attacks is crucial for maintaining the security of web applications.
Immediate Steps to Take
- Implement CSRF tokens in web forms to validate legitimate requests.
- Educate users about the risks of clicking on suspicious links or performing unintended actions.
Long-Term Security Practices
- Regularly update firmware and software to patch known vulnerabilities.
- Conduct security audits and penetration testing to identify and address potential weaknesses.
Patching and Updates
- Check for security advisories from ZyXEL regarding patches for the CSRF vulnerability.
- Apply recommended updates promptly to mitigate the risk of exploitation.