CVE-2017-5259 : Exploit Details and Defense Strategies

Cambium Networks cnPilot firmware versions 4.3.2-R4 and earlier contain a web shell with root-privilege administration capabilities, posing a security risk.

Understanding CVE-2017-5259

This CVE involves an undisclosed web shell in Cambium Networks cnPilot firmware versions 4.3.2-R4 and prior, allowing unauthorized access with elevated privileges.

What is CVE-2017-5259?

The vulnerability in Cambium Networks cnPilot firmware versions 4.3.2-R4 and earlier enables attackers to exploit a hidden web shell for unauthorized root-level access via a specific HTTP path.

The Impact of CVE-2017-5259

The presence of this web shell with root-privilege administration capabilities can lead to unauthorized access and potential malicious activities on affected devices.

Technical Details of CVE-2017-5259

This section provides detailed technical insights into the vulnerability.

Vulnerability Description

The vulnerability involves an undocumented web shell in Cambium Networks cnPilot firmware versions 4.3.2-R4 and earlier, accessible via the HTTP path https://<device-ip-or-hostname>/adm/syscmd.asp.

Affected Systems and Versions

Product: cnPilot
Vendor: Cambium Networks
Versions Affected: 4.3.2-R4 and prior

Exploitation Mechanism

The web shell allows attackers to gain root-privilege administration capabilities, potentially leading to unauthorized access and control of the affected devices.

Mitigation and Prevention

Protecting systems from CVE-2017-5259 requires immediate actions and long-term security measures.

Immediate Steps to Take

Update the Cambium Networks cnPilot firmware to a secure version that addresses the vulnerability.
Monitor network traffic for any suspicious activities that may indicate exploitation of the web shell.

Long-Term Security Practices

Implement network segmentation to limit the impact of potential breaches.
Regularly audit and review device configurations to detect any unauthorized changes.

Patching and Updates

Stay informed about security updates and patches released by Cambium Networks to address CVE-2017-5259.