CVE-2020-1700 : What You Need to Know

A flaw in the Ceph RGW Beast front-end could lead to denial of service attacks due to resource exhaustion.

Understanding CVE-2020-1700

This CVE involves a vulnerability in the Ceph RGW Beast component that could be exploited by authenticated attackers to cause a denial of service by exhausting system resources.

What is CVE-2020-1700?

A flaw in the Ceph RGW Beast front-end allows authenticated attackers to generate multiple disconnect attempts, leading to a permanent socket leak and resource exhaustion, resulting in a denial of service condition.

The Impact of CVE-2020-1700

The vulnerability could allow attackers to create a pile up of CLOSE_WAIT sockets, causing a denial of service and preventing legitimate users from accessing the system.

Technical Details of CVE-2020-1700

The technical aspects of the CVE vulnerability are as follows:

Vulnerability Description

The flaw in the Ceph RGW Beast front-end allows for a permanent socket connection leak when an authenticated attacker makes multiple disconnect attempts.

Affected Systems and Versions

Affected Vendor: [UNKNOWN]
Affected Product: Ceph
Versions Vulnerable:
14.2.4-125.el8cp
14.2.4-51.el7cp

Exploitation Mechanism

Attack Vector: Network
Privileges Required: Low
User Interaction: None
Availability Impact: High
Base Score: 6.5 (Medium Severity)
CWE-400: Resource Exhaustion vulnerability

Mitigation and Prevention

To mitigate the risks associated with CVE-2020-1700, consider the following:

Immediate Steps to Take

Apply the recommended security updates provided by the vendor.
Monitor and restrict network access to affected systems.

Long-Term Security Practices

Regularly audit and review access controls and user permissions.
Implement network segmentation to limit the impact of potential attacks.
Conduct security training for staff to recognize and respond to suspicious activities.

Patching and Updates

Utilize patches and updates released by the Ceph vendor to address the vulnerability and protect systems from exploitation.