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

[R6] Tenable Appliance 4.5.0 Fixes Multiple Vulnerabilities

Critical

Synopsis

The Tenable Appliance has recently been discovered to contain several vulnerabilities. One exists in the underlying operating system kernel, two in the Appliance web interface, and multiple issues in bundled applications. Since the Appliance ships with other Tenable products, please consult the associated advisories linked below for more details.

The following issues were found by Gregor Kopf:

  • Tenable Appliance Web UI Unauthorized Admin Password Manipulation (CVE-2017-8050)
  • Tenable Appliance Web UI /simpleupload.py tns_appliance_session_user Parameter Remote Command Execution (CVE-2017-8051)

  • Linux Kernel net/dccp/input.c dccp_rcv_state_process() Function DCCP_PKT_REQUEST Handling Use-after-free Remote Code Execution (CVE-2017-6074)
  • Tenable Nessus on Windows Unspecified Remote File Upload (TNS-2017-06, CVE-2017-6543)
  • Tenable SecurityCenter File Upload PHP Object Deserialization Remote File Deletion (TNS-2017-05)
  • Tenable SecurityCenter Multiple Vulnerabilities (TNS-2017-04, See advisory for VDB IDs)

Tenable would like to thank Gregor Kopf of Recurity Labs GmbH, working in conjunction with a mutual customer, for discovering and reporting the two Web UI vulnerabilities. The associated CVSSv2 score for this advisory reflects the unauthenticated remote command execution issue.

Please note that Tenable strongly recommends that the Tenable Appliance be installed on a subnet that is not Internet addressable.

[1] The two vulnerabilities in the Web UI affects all appliances in the 3.x (3.4.0, 3.5.0, 3.5.1, 3.10.0, 3.10.1) and 4.x line (4.0.0, 4.1.0, 4.2.0, 4.3.0, 4.3.1, 4.4.0). Tenable has not tested the third-party code issues to determine how far back in the version line they go. If you are running an appliance prior to 4.5.0, no matter how old, it is strongly encouraged you upgrade to the latest version.

Solution

Tenable has released version 4.5.0 of the Appliance that resolves this issue. Users are strongly encouraged to use the online updating functionality or download the new version to upgrade.

On 2017-04-18, security researcher "agix" published an exploit for the remote command execution flaw. As such, customers are more strongly encouraged to upgrade immediately.

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]

Risk Information

Tenable Advisory ID
TNS-2017-07
Credit
Gregor Kopf [Recurity Labs GmbH]
Risk Factor
Critical
CVSSv2 Base / Temporal Score
10.0 / 8.3
CVSSv2 Vector
(AV:N/AC:L/Au:N/C:C/I:C/A:C/E:F/RL:OF/RC:C)

Affected Products

Tenable Appliance 4.4.0 [1]

Disclosure Timeline

2017-02-07 - Password reset vuln reported to Tenable
2017-02-07 - Remote command execution vuln reported to Tenable
2017-02-08 - Tenable confirms receipt of remote command execution vuln
2017-02-10 - Tenable confirms receipt of the password reset vuln
2017-03-04 - Tenable Appliance 4.5.0 online update available
2017-03-07 - Tenable Appliance 4.5.0 offline update available
2017-04-18 - Exploit published for Remote Command Execution issue
2017-04-21 - CVE IDs requested
2017-04-21 - CVE IDs are published via MITRE without telling us the assignments

Advisory Timeline

2017-03-07 - [R1] Initial Release
2017-04-19 - [R2] Update with exploit information
2017-04-20 - [R3] Update with additional CVE
2017-04-21 - [R4] Warning about prior versions, re-formatting
2017-04-22 - [R5] Updated with new CVEs
2017-04-24 - [R6] Further update to impacted versions
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.

tenable.io BUY

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

Choose Your Subscription Option:

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. Add Advanced Support for access to phone, community and chat support 24 hours a day, 365 days a year.

Select Your License

Buy a multi-year license and save.

Add Support and Training

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.

Tenable.io BUY

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

Choose Your Subscription Option:

Buy Now

Try Tenable.io Web Application Scanning

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.

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

Buy Now

Try Tenable.io Container Security

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.

Try Tenable Lumin

Visualize and explore your Cyber Exposure, track risk reduction over time and benchmark against your peers with Tenable Lumin.

Buy Tenable Lumin

Contact a Sales Representative to see how Lumin can help you gain insight across your entire organization and manage cyber risk.

Try Tenable.cs

Enjoy full access to detect and fix cloud infrastructure misconfigurations in the design, build and runtime phases of your software development lifecycle.

Buy Tenable.cs

Contact a Sales Representative to learn more about Cloud Security and how you can secure every step from code to cloud.

Try Nessus Expert Free

FREE FOR 7 DAYS

Built for the modern attack surface, Nessus Expert enables you to see more and protect your organization from vulnerabilities from IT to the cloud.

Already have Nessus Professional?
Upgrade to Nessus Expert free for 7 days.

Buy Nessus Expert

Built for the modern attack surface, Nessus Expert enables you to see more and protect your organization from vulnerabilities from IT to the cloud.

Select Your License

Buy a multi-year license and save.

Add Support