Facebook Google Plus Twitter LinkedIn YouTube RSS Menu Search Resource - BlogResource - WebinarResource - ReportResource - Eventicons_066 icons_067icons_068icons_069icons_070

[R6] Nessus Web UI /server/properties token Parameter Remote Information Disclosure

Info

Synopsis

Nessus was found to be vulnerable to a parameter tampering issue that could result in a limited information disclosure. The issue is due to the web server's /server/properties resource including information meant for authenticated users. This resource is designed to provide limited information about the scanner for API requests. However, manipulation of the 'token' parameter would result in it returning additional information about the scanner, primarily the version of the Plugin feed and a few other minor details. Of the list of items disclosed, most of it is intended to be disclosed and poses no risk to the system and does not cross privilege boundaries. The few items disclosed that may constitute a disclosure include the Plugin set (the version of the plugins installed), Notifications (basically indicates if Nessus 5.0 or 5.2), Scanner Boot Time (could be useful in timing attacks against other parts of system), and Status (if the scanner is currently processing plugins).

* Please note that according to the CVSSv2 guidelines, a partial confidentiality disclosure consists of "considerable informational disclosure. Access to some system files is possible, but the attacker does not have control over what is obtained, or the scope of the loss is constrained. An example is a vulnerability that divulges only certain tables in a database". By this definition, Tenable does not agree that this issue warrants a 'partial confidentiality' rating. As such, we are rating this as 'none' which puts the CVSSv2 score at 0.0. Unfortunately, this is a limitation of CVSS in scoring as there is no way to abstract between a very minor information disclosure (e.g. server banner, path disclosure) versus something more serious. We recognize that this issue may pose a small risk in some environments. Finally, as always, Tenable recommends that Nessus web server interfaces not be exposed to external networks unless absolutely required.

Solution

Tenable has released Web UI 2.3.5, available for Nessus 5.x that addresses this issue. Customers do not need to do anything special to receive this update, as it was distributed as part of the plugin feed around June 26.

This page contains information regarding security vulnerabilities that may impact Tenable's products. This may include issues specific to our software, or due to the use of third-party libraries within our software. Tenable strongly encourages users to ensure that they upgrade or apply relevant patches in a timely manner.

Tenable takes product security very seriously. If you believe you have found a vulnerability in one of our products, we ask that you please work with us to quickly resolve it in order to protect customers. Tenable believes in responding quickly to such reports, maintaining communication with researchers, and providing a solution in short order.

For more details on submitting vulnerability information, please see our Vulnerability Reporting Guidelines page.

If you have questions or corrections about this advisory, please email [email protected]

Try for Free Buy Now

Try Tenable.io

FREE FOR 60 DAYS

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy. Sign up now and run your first scan within 60 seconds.

Buy Tenable.io

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy. Purchase your annual subscription today.

65 assets

$2,190.00

Buy Now

Try for Free Buy Now

Try Nessus Professional Free

FREE FOR 7 DAYS

Nessus® is the most comprehensive vulnerability scanner on the market today. Nessus Professional will help automate the vulnerability scanning process, save time in your compliance cycles and allow you to engage your IT team.

Buy Nessus Professional

Nessus® is the most comprehensive vulnerability scanner on the market today. Nessus Professional will help automate the vulnerability scanning process, save time in your compliance cycles and allow you to engage your IT team.

Buy a multi-year license and save

Try for Free Buy Now

Try Tenable.io Web Application Scanning

FREE FOR 60 DAYS

Enjoy full access to our latest web application scanning offering designed for modern applications as part of the Tenable.io platform. Safely scan your entire online portfolio for vulnerabilities with a high degree of accuracy without heavy manual effort or disruption to critical web applications. Sign up now and run your first scan within 60 seconds.

Buy Tenable.io Web Application Scanning

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy. Purchase your annual subscription today.

5 FQDNs

$3,578.00

Buy Now

Try for Free Contact Sales

Try Tenable.io Container Security

FREE FOR 60 DAYS

Enjoy full access to the only container security offering integrated into a vulnerability management platform. Monitor container images for vulnerabilities, malware and policy violations. Integrate with continuous integration and continuous deployment (CI/CD) systems to support DevOps practices, strengthen security and support enterprise policy compliance.

Buy Tenable.io Container Security

Tenable.io Container Security seamlessly and securely enables DevOps processes by providing visibility into the security of container images – including vulnerabilities, malware and policy violations – through integration with the build process.

Learn More about Industrial Security