CVE-2017-8329 : Exploit Details and Defense Strategies
Discover the stack overflow vulnerability in Securifi Almond devices running firmware AL-R096. Learn about the impact, affected systems, exploitation, and mitigation steps.
A vulnerability has been discovered in Securifi Almond, Almond+, and Almond 2015 devices running firmware AL-R096, allowing attackers to execute arbitrary code and take control of the device.
Understanding CVE-2017-8329
This CVE describes a stack overflow vulnerability in Securifi Almond devices that can be exploited by sending a large payload in a specific POST parameter.
What is CVE-2017-8329?
The vulnerability in Securifi Almond devices allows attackers to overflow the stack by manipulating the "mssid_1" POST parameter, leading to arbitrary code execution and device compromise.
The Impact of CVE-2017-8329
Exploiting this vulnerability can result in attackers gaining control of the affected devices, potentially leading to unauthorized access and manipulation of the device.
Technical Details of CVE-2017-8329
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
The vulnerability arises from a lack of length check on POST parameters, enabling attackers to trigger a stack overflow by sending a large payload in the "mssid_1" parameter.
Affected Systems and Versions
- Devices: Securifi Almond, Almond+, and Almond 2015
- Firmware: AL-R096
Exploitation Mechanism
- Attackers send a large payload in the "mssid_1" POST parameter
- The device processes the request, leading to a stack overflow
- By controlling the $ra register value, attackers can execute malicious payloads and compromise the device
Mitigation and Prevention
Protecting systems from CVE-2017-8329 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update the firmware to the latest version provided by the vendor
- Implement network segmentation to isolate vulnerable devices
Long-Term Security Practices
- Regularly monitor and audit network traffic for unusual activities
- Educate users on secure configuration practices and password hygiene
Patching and Updates
- Apply security patches and updates promptly to address known vulnerabilities