Detailed Article on CVE Vulnerabilities Related to Nessus
Agent 
Nessus Agent, a widely used security tool, has been found to
have critical vulnerabilities that could compromise the security of Windows
hosts. The identified CVE vulnerabilities, including CVE-2024-3291,
CVE-2024-3292, CVE-2024-3290, and CVE-2024-3289, highlight significant risks
associated with the installation and operation of Nessus Agent on Windows
systems.
### Vulnerability Overview
1. **CVE-2024-3291**: This vulnerability affects Nessus
Agent versions prior to 10.6.4 when installed to a directory outside the
default location on a Windows host. The lack of enforcement of secure
permissions for sub-directories during installation poses a serious risk of
local privilege escalation if directories in the non-default installation
location are not adequately secured.
2. **CVE-2024-3292**: In the case of CVE-2024-3292, a race
condition vulnerability exists where an authenticated, local attacker on a
Windows Nessus Agent host could manipulate installation parameters during
installation. This manipulation could potentially result in the execution of
arbitrary code on the Nessus host, emphasizing the need for robust security
measures during installation.
3. **CVE-2024-3290**: Similarly, CVE-2024-3290 exposes a
race condition vulnerability on Windows Nessus hosts, where an authenticated
local attacker could tamper with installation parameters during installation.
This unauthorized modification could lead to the execution of arbitrary code on
the Nessus host, underscoring the critical importance of secure installation
practices.
4. **CVE-2024-3289**: This vulnerability pertains to Nessus
versions prior to 10.7.3 when installed to a non-default directory on a Windows
host. Failure to enforce secure permissions for sub-directories in this
scenario could result in local privilege escalation if directories in the
non-default installation location are not adequately protected.
### Mitigation Strategies
To address these vulnerabilities and enhance the security of
Nessus Agent installations, users and organizations are strongly advised to
take the following mitigation steps:
- **Update Nessus Agent**: Ensure that Nessus Agent is
updated to versions 10.6.4 or later to patch the identified vulnerabilities.
- **Secure Installation Locations**: When installing Nessus
Agent, adhere to best practices and ensure that directories, especially those
outside the default location, are properly secured.
- **Implement Access Controls**: Limit access to Nessus
Agent installations to authorized personnel only to prevent unauthorized
manipulation of installation parameters.
### Conclusion
In conclusion, the CVE vulnerabilities affecting Nessus
Agent underscore the critical importance of maintaining robust security
practices, especially in the context of security tools. By promptly addressing
these vulnerabilities and implementing the recommended mitigation strategies,
users can enhance the security posture of their systems and mitigate the risks
associated with these vulnerabilities.
For further information and guidance on addressing CVE
vulnerabilities in Nessus Agent, users are encouraged to refer to official
security advisories and updates provided by Tenable, the developer of Nessus
Agent.