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CVE-2020-3315 : What You Need to Know

Learn about CVE-2020-3315 affecting Cisco products. Find out how attackers can bypass file policies, the impact, and mitigation steps to secure your systems.

Cisco Snort HTTP Detection Engine File Policy Bypass Vulnerability

Understanding CVE-2020-3315

What is CVE-2020-3315?

The CVE-2020-3315 vulnerability affects multiple Cisco products due to errors in the Snort detection engine's handling of specific HTTP responses. It could allow an unauthenticated, remote attacker to bypass configured file policies on the system.

The Impact of CVE-2020-3315

Exploiting this vulnerability could enable an attacker to deliver a malicious payload to the network by bypassing configured file policies.

Technical Details of CVE-2020-3315

Vulnerability Description

The vulnerability in the Snort detection engine allows attackers to bypass configured file policies on affected systems by sending crafted HTTP packets.

Affected Systems and Versions

        Vendor: Cisco
        Product: Cisco Firepower Threat Defense Software
        Affected Version: Not Applicable

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted HTTP packets through the affected system.

Mitigation and Prevention

Immediate Steps to Take

        Apply the necessary security updates provided by Cisco.
        Monitor network traffic for any signs of exploitation.

Long-Term Security Practices

        Regularly update and patch all software and systems.
        Implement network segmentation and access controls.

Patching and Updates

It is crucial to apply the security updates released by Cisco to address the vulnerability.

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