CVE-2023-3894 : Exploit Details and Defense Strategies

This CVE-2023-3894 revolves around a vulnerability in

jackson-dataformats-text

that can lead to Denial of Service (DOS) attacks. The vulnerability affects versions less than 2.15.0 of the library.

Understanding CVE-2023-3894

The vulnerability in

jackson-dataformats-text

can be exploited to cause a Denial of Service (DOS) attack, specifically targeting users who are parsing TOML data using this library.

What is CVE-2023-3894?

Users leveraging

jackson-dataformats-text

to parse TOML data may be vulnerable to Denial of Service attacks. Attackers can supply content that causes the parser to crash due to stack overflow, potentially leading to a denial of service situation.

The Impact of CVE-2023-3894

The impact of this vulnerability, identified under CAPEC-100 Overflow Buffers, is assessed as having a medium severity level (CVSS base score of 5.8). While the attack complexity is low, the availability impact is rated as low as well, emphasizing the potential for a successful exploitation to disrupt service availability.

Technical Details of CVE-2023-3894

The vulnerability is categorized under CWE-20 Improper Input Validation. It allows an attacker to supply malicious content that crashes the parser, leading to DOS attacks.

Vulnerability Description

The vulnerability in

jackson-dataformats-text

allows attackers to exploit the parser by supplying content causing it to crash, potentially leading to DOS attacks.

Affected Systems and Versions

Versions lower than 2.15.0 of

jackson-dataformats-text

are impacted by CVE-2023-3894.

Exploitation Mechanism

Attackers can exploit this vulnerability by providing input that triggers a stack overflow, causing the parser to crash and potentially leading to a denial of service scenario.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-3894, users should take immediate steps to protect their systems and follow long-term security best practices.

Immediate Steps to Take

Users are advised to update to versions equal to or greater than 2.15.0 to mitigate the vulnerability.
Avoid running the parser on user-supplied input to reduce the risk of exploitation.

Long-Term Security Practices

Implement proper input validation mechanisms to prevent similar vulnerabilities in the future.
Regularly update and patch dependencies to ensure system security.

Patching and Updates

It is crucial to stay informed about security updates and apply patches promptly to address known vulnerabilities and enhance system security.