CVE-2023-2005 : What You Need to Know

This CVE record was published by Tenable on June 26, 2023, highlighting a privilege escalation vulnerability addressed in Tenable Plugin Feed ID #202306261202. The vulnerability was discovered by Patrick Romero from CrowdStrike.

Understanding CVE-2023-2005

This vulnerability affects Tenable products like Tenable.io, Nessus, and Security Center before Plugin Feed ID #202306261202. It could potentially allow a malicious actor with sufficient permissions on a scan target to place a binary in a specific filesystem location and exploit the impacted plugin to escalate privileges.

What is CVE-2023-2005?

The CVE-2023-2005 vulnerability is categorized as having a CVSS v3.1 base score of 6.3, with a medium severity level. It has a high attack complexity, local attack vector, and requires user interaction. The impact includes high availability, confidentiality, and integrity impacts, with high privileges required for exploitation.

The Impact of CVE-2023-2005

If exploited, this vulnerability could lead to privilege escalation, allowing unauthorized access to sensitive information and system resources within the affected Tenable products. An attacker could potentially gain elevated privileges and carry out malicious activities.

Technical Details of CVE-2023-2005

The vulnerability arises from a flaw that enables an attacker with specific permissions to introduce a binary into a targeted system and exploit a plugin to escalate privileges.

Vulnerability Description

The vulnerability allows a malicious actor to manipulate a file system location by placing a binary and utilizing an affected plugin to escalate privileges.

Affected Systems and Versions

Tenable products affected include Tenable.io, Nessus, and Security Center versions before Plugin Feed ID #202306261202.

Exploitation Mechanism

A threat actor with adequate permissions on a scan target can leverage this vulnerability to gain unauthorized access and escalate privileges within the Tenable products.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-2005, immediate actions and long-term security practices should be implemented.

Immediate Steps to Take

Update Tenable products to versions equal to or greater than Plugin Feed ID #202306261202.
Monitor system activities for any suspicious behavior.
Review and restrict user permissions to essential functions.

Long-Term Security Practices

Regularly review and apply software updates and security patches.
Implement access controls and strong authentication mechanisms.
Conduct regular security audits and penetration tests to identify vulnerabilities.

Patching and Updates

The necessary updates addressing this vulnerability have been released via the Tenable plugin feed in feed serial numbers equal to or greater than #202306261202. It is crucial to apply these updates promptly to secure the affected systems.