CVE-2017-8837 : Vulnerability Insights and Analysis

Peplink Balance devices with specific firmware versions are vulnerable to a security issue involving clear text password storage.

Understanding CVE-2017-8837

What is CVE-2017-8837?

CVE-2017-8837 is a vulnerability found in Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware versions prior to fw-b305hw2_380hw6_580hw2_710hw3_1350hw2_2500-7.0.1-build2093. The flaw allows passwords to be stored in clear text format, potentially leading to unauthorized access.

The Impact of CVE-2017-8837

The vulnerability could enable attackers to retrieve stored passwords from affected Peplink Balance devices, compromising sensitive information and potentially leading to further system breaches.

Technical Details of CVE-2017-8837

Vulnerability Description

Passwords on Peplink Balance devices are stored in clear text format, specifically in the files /etc/waipass and /etc/roapass, making them easily accessible to attackers.

Affected Systems and Versions

Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices
Firmware versions prior to fw-b305hw2_380hw6_580hw2_710hw3_1350hw2_2500-7.0.1-build2093

Exploitation Mechanism

If a vulnerable device is compromised, attackers can exploit the clear text password storage to gain unauthorized access to passwords and potentially compromise other systems.

Mitigation and Prevention

Immediate Steps to Take

Update the firmware of Peplink Balance devices to the latest version to address the vulnerability.

Long-Term Security Practices

Implement strong password policies and avoid using default or easily guessable passwords.
Regularly monitor and audit password storage mechanisms to ensure sensitive information is adequately protected.

Patching and Updates

Regularly check for firmware updates and security advisories from Peplink to stay informed about potential vulnerabilities and apply patches promptly.