CVE-2023-28758 : Security Advisory and Response

This CVE-2023-28758 article provides detailed insights into an identified security issue in Veritas NetBackup before version 8.3.0.2. The vulnerability allows an unprivileged user to specify a log file path when executing a NetBackup command, enabling them to overwrite existing NetBackup log files.

Understanding CVE-2023-28758

In this section, we will delve into the specifics of CVE-2023-28758 and understand its implications.

What is CVE-2023-28758?

CVE-2023-28758 is a security vulnerability found in Veritas NetBackup versions earlier than 8.3.0.2. The flaw enables unprivileged users to manipulate log file paths while running NetBackup commands, leading to the potential overwriting of existing NetBackup log files.

The Impact of CVE-2023-28758

The impact of CVE-2023-28758 is rated as HIGH, with a base severity score of 7.1. The vulnerability has the potential to compromise the integrity and availability of the affected systems. Although the confidentiality impact is deemed as NONE, the integrity and availability of the system are at significant risk.

Technical Details of CVE-2023-28758

In this section, we will explore the technical aspects of CVE-2023-28758 to gain a deeper understanding of the vulnerability.

Vulnerability Description

The vulnerability in Veritas NetBackup before version 8.3.0.2 lies in BPCD, which allows unauthorized users to specify log file paths during NetBackup command execution, potentially resulting in the overwriting of existing log files.

Affected Systems and Versions

The affected vendor and product are labeled as 'n/a,' indicating that the impact is widespread across various versions of Veritas NetBackup before 8.3.0.2.

Exploitation Mechanism

The attack vector for CVE-2023-28758 is classified as 'LOCAL' with a low attack complexity and privileges required. User interaction is not necessary for exploitation, and the vulnerability scope remains 'UNCHANGED.'

Mitigation and Prevention

In this section, we will outline effective strategies to mitigate and prevent the exploitation of CVE-2023-28758.

Immediate Steps to Take

To address CVE-2023-28758, organizations should consider limiting user access rights, implementing proper access controls, and monitoring log file activities to detect unauthorized modifications.

Long-Term Security Practices

Establishing robust security policies, conducting regular security audits, and providing comprehensive training to personnel can help enhance the overall security posture against similar vulnerabilities.

Patching and Updates

It is crucial for organizations using Veritas NetBackup to update to version 8.3.0.2 or later, where the identified vulnerability has been remediated. Regularly applying security patches and staying informed about software updates is essential to protect against potential security risks.

By understanding the nature of CVE-2023-28758 and implementing appropriate security measures, organizations can fortify their systems and safeguard against potential security breaches.