CVE-2017-12786 Explained : Impact and Mitigation

CVE-2017-12786, published on August 22, 2017, addresses a vulnerability in the NoviWare software distribution on NoviSwitch devices. The issue could allow remote attackers to execute arbitrary code on the switch.

Understanding CVE-2017-12786

This CVE entry describes a critical vulnerability in the network interfaces of certain services within the NoviWare software distribution.

What is CVE-2017-12786?

The vulnerability arises from a stack-based buffer overflow during the unserialization process of packet data, potentially leading to remote attackers gaining root code execution privileges on the switch.

The Impact of CVE-2017-12786

If exploited, this vulnerability could allow unauthorized remote attackers to execute arbitrary code with elevated privileges on the affected NoviSwitch devices.

Technical Details of CVE-2017-12786

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

The bug occurs when operators attempt to modify ACLs, inadvertently exposing network interfaces to remote attackers due to a flaw in ACL modification application.

Affected Systems and Versions

NoviWare software distribution in NW400.2.6
NoviSwitch devices

Exploitation Mechanism

Attackers exploit a stack-based buffer overflow during the unserialization of packet data to gain root code execution privileges on the switch.

Mitigation and Prevention

Protecting systems from CVE-2017-12786 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor-supplied patches promptly to mitigate the vulnerability.
Implement network segmentation to limit the impact of potential attacks.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security assessments and audits to identify and remediate weaknesses.

Patching and Updates

Stay informed about security advisories and updates from the vendor.
Monitor network traffic for any suspicious activities that could indicate exploitation of the vulnerability.