CVE-2020-27553 : Security Advisory and Response

In BASETech GE-131 BT-1837836 firmware 20180921, a vulnerability exists that allows an attacker to download files from the /etc folder without authentication.

Understanding CVE-2020-27553

What is CVE-2020-27553?

This CVE identifies a security flaw in the web-server configuration of BASETech GE-131 BT-1837836 firmware, enabling unauthorized file downloads from the /etc directory.

The Impact of CVE-2020-27553

The vulnerability permits attackers with network access to retrieve files from the /etc folder without requiring authentication, posing a significant security risk.

Technical Details of CVE-2020-27553

Vulnerability Description

The web-server in BASETech GE-131 BT-1837836 firmware is set with the option 'DocumentRoot /etc,' allowing unauthenticated file downloads from the /etc directory.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: Not applicable

Exploitation Mechanism

Attackers with network access to the web-server can exploit this vulnerability without the need for path traversal sequences.

Mitigation and Prevention

Immediate Steps to Take

Restrict network access to the web-server to trusted entities only.
Implement strong authentication mechanisms for accessing sensitive directories.

Long-Term Security Practices

Regularly monitor and audit file access and downloads on the web-server.
Conduct security assessments to identify and address configuration vulnerabilities.

Patching and Updates

Check for firmware updates or patches from the vendor to address this vulnerability.