CVE-2020-3310 : What You Need to Know

A vulnerability in the XML parser code of Cisco Firepower Device Manager On-Box software could allow an authenticated, remote attacker to cause an affected system to become unstable or reload.

Understanding CVE-2020-3310

This CVE involves a vulnerability in Cisco Firepower Device Manager On-Box software that could lead to system instability or reload.

What is CVE-2020-3310?

The vulnerability arises from insufficient hardening of the XML parser configuration, enabling attackers to exploit it through various means using a malicious file.

The Impact of CVE-2020-3310

The vulnerability could result in system instability, memory exhaustion, and in severe cases, lead to a reload of the affected system.

Technical Details of CVE-2020-3310

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in the XML parser code of Cisco Firepower Device Manager On-Box software allows attackers to crash the XML parser process, potentially causing system instability.

Affected Systems and Versions

Product: Cisco Firepower Threat Defense Software
Vendor: Cisco
Version: Not applicable

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: High
User Interaction: None
Confidentiality Impact: High
Integrity Impact: None
Availability Impact: Low
Scope: Unchanged
Vector String: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:L
Base Score: 5.5 (Medium Severity)

Mitigation and Prevention

Protecting systems from this vulnerability is crucial.

Immediate Steps to Take

Apply vendor patches promptly
Monitor for any unusual system behavior
Restrict access to vulnerable systems

Long-Term Security Practices

Regularly update and patch software
Implement network segmentation and access controls
Conduct security training for system administrators

Patching and Updates

Ensure that the affected systems are updated with the latest patches provided by Cisco.