CVE-2020-8228 : Security Advisory and Response

A missing rate limit in the Preferred Providers app 1.7.0 allowed an attacker to set the password an uncontrolled amount of times.

Understanding CVE-2020-8228

This CVE involves a vulnerability in the Nextcloud Preferred Provider affecting version 1.7.0.

What is CVE-2020-8228?

The vulnerability in the Preferred Providers app 1.7.0 allowed attackers to set the password an unlimited number of times due to a missing rate limit.

The Impact of CVE-2020-8228

The vulnerability could be exploited by malicious actors to manipulate passwords without restrictions, potentially leading to unauthorized access and security breaches.

Technical Details of CVE-2020-8228

The technical aspects of the CVE.

Vulnerability Description

A missing rate limit in the Preferred Providers app 1.7.0 allowed an attacker to set the password an uncontrolled amount of times.

Affected Systems and Versions

Product: Nextcloud Preferred Provider
Vendor: n/a
Versions Affected: 1.7.0
Fixed Version: 1.8.0

Exploitation Mechanism

The vulnerability could be exploited by attackers to repeatedly set passwords without any restrictions, potentially compromising user accounts and data.

Mitigation and Prevention

Steps to address and prevent the vulnerability.

Immediate Steps to Take

Upgrade to version 1.8.0 of the Nextcloud Preferred Provider to mitigate the vulnerability.
Monitor user accounts for any suspicious activity related to password changes.

Long-Term Security Practices

Implement proper rate limiting mechanisms in applications to prevent similar business logic errors.
Conduct regular security assessments and audits to identify and address vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories from Nextcloud and apply patches promptly to secure systems and prevent exploitation of known vulnerabilities.