CVE-2017-15654 : Exploit Details and Defense Strategies
Learn about CVE-2017-15654, a vulnerability in Asus asuswrt routers allowing unauthorized access. Find out how to mitigate the risk and secure your router.
This CVE involves the presence of highly predictable session tokens in the HTTPd server of all current versions of Asus asuswrt, allowing attackers to gain administrative router access.
Understanding CVE-2017-15654
This vulnerability was made public on January 16, 2018, and poses a significant risk to Asus router users.
What is CVE-2017-15654?
The vulnerability in Asus asuswrt (<= 3.0.0.4.380.7743) enables attackers to predict session tokens, leading to unauthorized access to the router's administrative functions.
The Impact of CVE-2017-15654
The exploitation of this vulnerability can result in unauthorized individuals gaining administrative control over affected Asus routers.
Technical Details of CVE-2017-15654
This section provides more in-depth technical insights into the vulnerability.
Vulnerability Description
The presence of highly foreseeable session tokens in the HTTPd server of Asus asuswrt versions <= 3.0.0.4.380.7743 allows attackers to gain administrative router access.
Affected Systems and Versions
- Product: n/a
- Vendor: n/a
- Versions: <= 3.0.0.4.380.7743
Exploitation Mechanism
Attackers can exploit the predictable session tokens to hijack sessions and gain unauthorized access to the router's administrative functions.
Mitigation and Prevention
Protecting against CVE-2017-15654 requires immediate action and long-term security measures.
Immediate Steps to Take
- Update the Asus router firmware to the latest version that addresses this vulnerability.
- Change default passwords and implement strong, unique credentials.
- Monitor network activity for any signs of unauthorized access.
Long-Term Security Practices
- Regularly update router firmware to patch known vulnerabilities.
- Implement network segmentation to limit the impact of potential breaches.
- Educate users on best practices for securing their home network.
Patching and Updates
Asus has likely released patches to address this vulnerability. Ensure timely installation of these updates to secure your router against potential attacks.