CVE-2018-20385 : What You Need to Know

CastleNet CBV38Z4EC, CBV38Z4ECNIT, CBW383G4J, and CBW38G4J devices are vulnerable to remote credential discovery via SNMP requests.

Understanding CVE-2018-20385

These devices have a vulnerability that could allow remote attackers to uncover credentials by exploiting SNMP requests.

What is CVE-2018-20385?

The CastleNet devices mentioned have a security flaw that enables remote attackers to reveal credentials through specific SNMP requests.

The Impact of CVE-2018-20385

Remote attackers can exploit the vulnerability to discover sensitive credentials on the affected devices.

Technical Details of CVE-2018-20385

CastleNet devices are susceptible to credential exposure due to a flaw in handling SNMP requests.

Vulnerability Description

Attackers can uncover credentials by sending SNMP requests for specific OIDs on the affected devices.

Affected Systems and Versions

CastleNet CBV38Z4EC 125.553mp1.39219mp1.899.007
CastleNet CBV38Z4ECNIT 125.553mp1.39219mp1.899.005ITT
CastleNet CBW383G4J 37.556mp5.008
CastleNet CBW38G4J 37.553mp1.008

Exploitation Mechanism

Remote attackers can send SNMP requests for specific OIDs to uncover credentials on the vulnerable devices.

Mitigation and Prevention

Immediate Steps to Take:

Disable SNMP if not essential for device functionality
Implement firewall rules to restrict SNMP access Long-Term Security Practices:
Regularly update device firmware and apply security patches
Conduct security assessments to identify and mitigate vulnerabilities
Monitor SNMP traffic for any suspicious activity
Educate users on secure credential management practices
Consider implementing additional authentication mechanisms
Regularly review and update SNMP community strings
Patching and Updates:
Apply patches provided by CastleNet to address the SNMP credential exposure vulnerability.