CVE-2020-9029 : Exploit Details and Defense Strategies

Symmetricom SyncServer S100 2.90.70.3, S200 1.30, S250 1.25, S300 2.65.0, and S350 2.80.1 devices are vulnerable to Directory Traversal via the FileName parameter to messagelog.php.

Understanding CVE-2020-9029

Symmetricom SyncServer devices are affected by a Directory Traversal vulnerability that can be exploited through a specific parameter.

What is CVE-2020-9029?

The vulnerability in Symmetricom SyncServer devices allows an attacker to traverse directories using the FileName parameter in messagelog.php, potentially leading to unauthorized access to sensitive files.

The Impact of CVE-2020-9029

This vulnerability could result in unauthorized disclosure of information, manipulation of critical files, and potential compromise of the affected devices.

Technical Details of CVE-2020-9029

Symmetricom SyncServer devices are susceptible to a specific exploitation method due to the following details:

Vulnerability Description

The vulnerability arises from improper input validation in the FileName parameter of messagelog.php, enabling attackers to navigate through directories.

Affected Systems and Versions

Symmetricom SyncServer S100 2.90.70.3
Symmetricom SyncServer S200 1.30
Symmetricom SyncServer S250 1.25
Symmetricom SyncServer S300 2.65.0
Symmetricom SyncServer S350 2.80.1

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the FileName parameter in the messagelog.php file to traverse directories and access unauthorized files.

Mitigation and Prevention

To address CVE-2020-9029 and enhance security measures, consider the following steps:

Immediate Steps to Take

Implement a firewall to restrict access to vulnerable services.
Regularly monitor and analyze system logs for any suspicious activities.
Apply vendor-supplied patches or updates to fix the vulnerability.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and address vulnerabilities.
Educate users and administrators about secure coding practices and the importance of input validation.

Patching and Updates

Stay informed about security advisories from the vendor and promptly apply patches to mitigate known vulnerabilities.