CVE-2023-33957 : Vulnerability Insights and Analysis

A denial of service vulnerability has been identified in the notation CLI tool, affecting versions prior to v1.0.0-rc.6. Attackers can exploit this vulnerability by adding a high number of signatures to an artifact, leading to denial of service on the machine when the 'notation inspect' command is executed. It is crucial for users to upgrade their notation packages to v1.0.0-rc.6 or higher to mitigate this issue.

Understanding CVE-2023-33957

This vulnerability, assigned the ID CVE-2023-33957, impacts the notation CLI tool, posing a risk of denial of service due to uncontrolled resource consumption.

What is CVE-2023-33957?

The CVE-2023-33957 vulnerability arises from the ability of an attacker to compromise a registry and add an excessive number of signatures to an artifact, causing denial of services on the affected machine when the 'notation inspect' command is executed.

The Impact of CVE-2023-33957

The impact of this vulnerability is low, with an attack complexity rated as high and privileges required being high. Although the availability impact is low, it can still lead to a denial of service situation.

Technical Details of CVE-2023-33957

The 'notation' CLI tool is utilized for signing and verifying OCI artifacts and container images. The vulnerability allows attackers to trigger denial of service by manipulating artifact signatures.

Vulnerability Description

Attackers can exploit this vulnerability by adding a significant number of signatures to an artifact, causing a denial of service when the 'notation inspect' command is triggered.

Affected Systems and Versions

Vendor: notaryproject
Product: notation
Affected Versions: < 1.0.0-rc.6

Exploitation Mechanism

The exploitation of CVE-2023-33957 involves compromising a registry, adding numerous signatures to an artifact to trigger denial of service.

Mitigation and Prevention

To address CVE-2023-33957, users are strongly advised to take immediate steps to safeguard their systems and data.

Immediate Steps to Take

Upgrade notation packages to v1.0.0-rc.6 or above to mitigate the vulnerability effectively.

Long-Term Security Practices

Users unable to upgrade should restrict container registries to secure and trusted sources to reduce the risk of exploitation.

Patching and Updates

Ensure regular monitoring for security updates and promptly apply patches released by the vendor to maintain system integrity and security.