CVE-2017-15653 : Security Advisory and Response
Learn about CVE-2017-15653 affecting Asus asuswrt versions <= 3.0.0.4.380.7743. Understand the impact, affected systems, exploitation, and mitigation steps.
Asus asuswrt versions <= 3.0.0.4.380.7743 are vulnerable due to improper validation of the administrator's IP, potentially allowing unauthorized users to execute actions.
Understanding CVE-2017-15653
This CVE involves a vulnerability in the HTTPd server of Asus asuswrt that occurs after the administrator logs in.
What is CVE-2017-15653?
The vulnerability stems from the improper validation of the administrator's IP, enabling unauthorized users to execute actions if they possess the administrator session token and use a specific User-Agent string.
The Impact of CVE-2017-15653
Unauthorized users could exploit this vulnerability to perform actions on the system, posing a significant security risk to affected devices.
Technical Details of CVE-2017-15653
Asus asuswrt versions <= 3.0.0.4.380.7743 are susceptible to this vulnerability.
Vulnerability Description
The flaw lies in the HTTPd server's improper validation of the administrator's IP post-login, potentially granting unauthorized access.
Affected Systems and Versions
- Product: Asus asuswrt
- Vendor: Asus
- Versions affected: <= 3.0.0.4.380.7743
Exploitation Mechanism
Unauthorized users with knowledge of the administrator session token and a specific User-Agent string can exploit this vulnerability to execute actions on the system.
Mitigation and Prevention
Taking immediate steps and implementing long-term security practices are crucial to mitigate the risks associated with CVE-2017-15653.
Immediate Steps to Take
- Monitor network traffic for any suspicious activity related to unauthorized access.
- Regularly review and update access control policies to restrict unauthorized actions.
- Consider implementing multi-factor authentication to enhance security.
Long-Term Security Practices
- Conduct regular security audits and vulnerability assessments to identify and address potential weaknesses.
- Educate system administrators and users about best practices for secure system access.
- Stay informed about security updates and patches released by Asus to address this vulnerability.
Patching and Updates
- Apply the latest security patches and updates provided by Asus to remediate the vulnerability and enhance system security.