CVE-2017-8836 Explained : Impact and Mitigation
Learn about CVE-2017-8836 affecting Peplink Balance devices. Discover the impact, affected systems, exploitation method, and mitigation steps for this CSRF vulnerability.
A CSRF vulnerability affecting Peplink Balance devices with specific firmware versions allows attackers to execute commands through the administrative interface.
Understanding CVE-2017-8836
This CVE involves a Cross-Site Request Forgery (CSRF) vulnerability in Peplink Balance devices.
What is CVE-2017-8836?
The CSRF vulnerability affects Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices running firmware prior to fw-b305hw2_380hw6_580hw2_710hw3_1350hw2_2500-7.0.1-build2093. The issue lies in the CGI scripts used in the administrative interface. Consequently, if a logged-in user accesses a malicious website, an attacker can exploit this vulnerability to execute commands.
The Impact of CVE-2017-8836
One possible consequence of exploiting this vulnerability is the ability to modify the credentials of the administrative web interface.
Technical Details of CVE-2017-8836
This section provides more technical insights into the vulnerability.
Vulnerability Description
The CSRF vulnerability exists in Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware versions before fw-b305hw2_380hw6_580hw2_710hw3_1350hw2_2500-7.0.1-build2093. The CGI scripts in the administrative interface are affected, allowing attackers to execute commands.
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
- Attacker tricks a logged-in user into visiting a malicious website
- Allows the attacker to execute commands, potentially modifying administrative credentials
Mitigation and Prevention
To address CVE-2017-8836, follow these mitigation strategies:
Immediate Steps to Take
- Update affected devices to firmware version fw-b305hw2_380hw6_580hw2_710hw3_1350hw2_2500-7.0.1-build2093
- Avoid visiting untrusted websites while logged into the administrative interface
Long-Term Security Practices
- Regularly update firmware and security patches
- Educate users on safe browsing practices
Patching and Updates
- Peplink has released firmware version fw-b305hw2_380hw6_580hw2_710hw3_1350hw2_2500-7.0.1-build2093 to address this vulnerability