CVE-2017-16743 : Security Advisory and Response
Learn about CVE-2017-16743, an Improper Authorization vulnerability in PHOENIX CONTACT FL SWITCH products, allowing remote attackers to gain administrative privileges. Find mitigation steps and preventive measures here.
A vulnerability known as Improper Authorization has been identified in PHOENIX CONTACT FL SWITCH products, potentially allowing unauthorized attackers to gain administrative privileges on the affected devices.
Understanding CVE-2017-16743
This CVE involves an Improper Authorization issue in PHOENIX CONTACT FL SWITCH products, enabling attackers to bypass web-service authentication and obtain administrative control remotely.
What is CVE-2017-16743?
The vulnerability in PHOENIX CONTACT FL SWITCH products with firmware Versions 1.0 to 1.32 allows remote unauthenticated attackers to create specific HTTP requests to gain administrative privileges on the device.
The Impact of CVE-2017-16743
The vulnerability poses a significant security risk as attackers can exploit it to circumvent authentication mechanisms and potentially take control of the affected devices.
Technical Details of CVE-2017-16743
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The Improper Authorization issue in PHOENIX CONTACT FL SWITCH products running firmware Version 1.0 to 1.32 enables attackers to craft special HTTP requests to bypass web-service authentication and gain administrative privileges.
Affected Systems and Versions
- Product: PHOENIX CONTACT FL SWITCH
- Versions: 1.0 to 1.32
Exploitation Mechanism
- Attackers can exploit the vulnerability remotely by creating specific HTTP requests to bypass authentication.
Mitigation and Prevention
Protecting systems from CVE-2017-16743 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update the firmware of PHOENIX CONTACT FL SWITCH products to versions that address the vulnerability.
- Implement network segmentation to limit access to vulnerable devices.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Regularly update firmware and security patches for all network devices.
- Conduct security assessments and penetration testing to identify and address vulnerabilities proactively.
Patching and Updates
- Stay informed about security advisories and updates from PHOENIX CONTACT to apply patches promptly.