CVE-2024-23684 : Exploit Details and Defense Strategies

This CVE-2024-23684 details a vulnerability in the com.upokecenter.cbor Java implementation of Concise Binary Object Representation (CBOR) versions 4.0.0 to 4.5.1. An inefficient algorithmic complexity in the DecodeFromBytes function may allow an attacker to cause a denial of service by passing a malicious input, potentially enabling a remote attack.

Understanding CVE-2024-23684

This section will dive into the specifics of CVE-2024-23684, including its impact, technical details, affected systems, exploitation mechanism, and mitigation strategies.

What is CVE-2024-23684?

CVE-2024-23684 pertains to a vulnerability in the DecodeFromBytes function in the com.upokecenter.cbor Java implementation of CBOR versions 4.0.0 to 4.5.1. The flaw allows an attacker to exploit the inefficiencies in the algorithmic complexity of the function to trigger a denial of service attack.

The Impact of CVE-2024-23684

The impact of this vulnerability is significant as it opens up the possibility for an attacker to disrupt the normal functioning of an application utilizing the affected library. Depending on the context of use, this could potentially lead to a remote denial of service attack.

Technical Details of CVE-2024-23684

Understanding the technical aspects of CVE-2024-23684 is crucial in grasping the full scope of the vulnerability, its implications, and how it can be mitigated.

Vulnerability Description

The vulnerability stems from the inefficient algorithmic complexity in the DecodeFromBytes function of the com.upokecenter.cbor Java implementation of CBOR versions 4.0.0 to 4.5.1. By exploiting this flaw, an attacker can craft malicious inputs to trigger a denial of service scenario.

Affected Systems and Versions

The vulnerability affects the com.upokecenter:cbor package with versions ranging from 4.0.0 to 4.5.1. Systems utilizing these versions are at risk of exploitation if not addressed promptly.

Exploitation Mechanism

An attacker can exploit the vulnerability by manipulating the input to the DecodeFromBytes function in a way that triggers the inefficient algorithmic complexity, leading to a denial of service condition within the application.

Mitigation and Prevention

Taking immediate steps to mitigate the risks posed by CVE-2024-23684 is essential to safeguard systems and applications from potential exploitation. Implementing both short-term and long-term security practices is crucial.

Immediate Steps to Take

Update the com.upokecenter:cbor package to a non-vulnerable version (beyond 4.5.1).
Monitor and restrict inputs to the DecodeFromBytes function to prevent malicious exploitation.

Long-Term Security Practices

Regularly scan and audit dependencies for known vulnerabilities.
Educate developers on secure coding practices to prevent similar vulnerabilities in the future.

Patching and Updates

Stay informed about security advisories and updates from the official sources to promptly apply patches that address CVE-2024-23684 and other potential vulnerabilities in your software stack.