CVE-2020-15115 : What You Need to Know

etcd before versions 3.3.23 and 3.4.10 allows very short passwords, potentially enabling password guessing attacks.

Understanding CVE-2020-15115

etcd has a vulnerability that lacks password length validation, allowing for very short passwords, like those with a length of one, making password guessing or brute-force attacks easier.

What is CVE-2020-15115?

etcd versions 3.3.23 and 3.4.10 do not enforce a minimum password length, posing a security risk as attackers can exploit weak passwords with minimal effort.

The Impact of CVE-2020-15115

CVSS Base Score: 5.8 (Medium Severity)
Attack Vector: Network
Confidentiality Impact: Low
Integrity Impact: None
Privileges Required: None
Scope: Changed
This vulnerability's impact is rated as medium severity due to the ease of password guessing attacks.

Technical Details of CVE-2020-15115

etcd vulnerability details and affected systems.

Vulnerability Description

etcd versions 3.3.23 and 3.4.10 lack password length validation.

Affected Systems and Versions

Affected Product: etcd
Vendor: etcd-io
Vulnerable Versions:
< 3.3.23
< 3.4.10

Exploitation Mechanism

Attackers can exploit this vulnerability by attempting to guess or brute-force users' passwords due to the absence of password length validation.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2020-15115.

Immediate Steps to Take

Update etcd to versions 3.3.23 or 3.4.10 to address the vulnerability.
Enforce strong password policies with adequate length requirements.

Long-Term Security Practices

Regularly review and update password policies.
Implement multi-factor authentication to enhance security.

Patching and Updates

Apply patches provided by etcd to fix the password length validation issue.