CVE-2023-25642 : Vulnerability Insights and Analysis

This CVE record, assigned by ZTE, was published on December 14, 2023, revealing two vulnerabilities in ZTE mobile internet products related to a buffer overflow issue. The vulnerability allows an authenticated attacker to exploit insufficient validation of a TCP port parameter for performing a denial of service attack.

Understanding CVE-2023-25642

The vulnerability in some ZTE mobile internet products poses a security risk due to a buffer overflow issue that could be exploited by attackers to disrupt services.

What is CVE-2023-25642?

CVE-2023-25642 involves a buffer overflow vulnerability in certain ZTE mobile internet products, enabling authenticated attackers to launch denial of service attacks by manipulating a TCP port parameter.

The Impact of CVE-2023-25642

The impact of this vulnerability is significant as it allows attackers to disrupt the normal operation of affected ZTE mobile internet products, potentially leading to service interruptions and downtime.

Technical Details of CVE-2023-25642

The vulnerability is categorized under CWE-120, specifically dealing with buffer overflow vulnerabilities. It has a CVSSv3.1 base score of 5.9, indicating a medium severity level with low impacts on confidentiality, integrity, and availability.

Vulnerability Description

The vulnerability stems from insufficient validation of a TCP port parameter, leading to a buffer overflow issue that can be exploited by authenticated attackers.

Affected Systems and Versions

Product: MC801A

Vendor: ZTE
Affected Version: MC801A_Elisa3_B19

Product: MC801A1

Vendor: ZTE
Affected Version: MC801A1_Elisa1_B04

Exploitation Mechanism

An authenticated attacker could leverage the buffer overflow vulnerability in ZTE mobile internet products by manipulating the TCP port parameter, thereby initiating a denial of service attack.

Mitigation and Prevention

It is crucial to address CVE-2023-25642 promptly to prevent potential exploitation and mitigate associated risks.

Immediate Steps to Take

Implement the provided solutions by upgrading to the following versions:
MC801A_Elisa3_B22
MC801A1_Elisa1_B06

Long-Term Security Practices

Regularly monitor and update security patches for ZTE mobile internet products to address vulnerabilities promptly.
Conduct thorough security assessments and testing to identify and remediate potential security gaps.

Patching and Updates

Ensure timely application of patches and updates provided by ZTE to mitigate the vulnerability and enhance the security posture of the affected systems.