CVE-2017-20038 : Security Advisory and Response

A critical vulnerability has been discovered in SICUNET Access Controller version 0.32-05z, allowing attackers to escalate privileges remotely.

Understanding CVE-2017-20038

This CVE involves improper privilege management in the card_scan_decoder.php file of SICUNET Access Controller version 0.32-05z.

What is CVE-2017-20038?

The vulnerability allows attackers to escalate privileges by tampering with the "No/door" argument remotely.

The Impact of CVE-2017-20038

CVSS Score: 6.3 (Medium)
Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
Confidentiality Impact: Low
Integrity Impact: Low
Availability Impact: Low

Technical Details of CVE-2017-20038

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability is classified as critical due to improper privilege management in the card_scan_decoder.php file.

Affected Systems and Versions

Affected Product: SICUNET Access Controller
Affected Version: 0.32-05z

Exploitation Mechanism

Attackers can exploit the vulnerability by manipulating the "No/door" argument to escalate their privileges.

Mitigation and Prevention

Protect your systems from CVE-2017-20038 with the following steps:

Immediate Steps to Take

Update SICUNET Access Controller to a patched version.
Monitor network traffic for any suspicious activity.
Implement strong access controls to limit unauthorized access.

Long-Term Security Practices

Conduct regular security audits and vulnerability assessments.
Educate users and administrators about secure coding practices.
Keep systems and software up to date with the latest security patches.

Patching and Updates

Apply patches provided by SICUNET promptly to address the vulnerability.