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[R4] SecurityCenter Post-authentication Remote Command Execution

High

Synopsis

SecurityCenter contains multiple flaws that may allow an authenticated user to execute remote commands on the device. The issue is due to four separate pages not fully sanitizing user-supplied files during upload functions, allowing for the injection of operating system commands. In each case the user must be authenticated to the device, and in two cases the account must have sufficient privileges to reach the vulnerable functionality.

Three of the issues were reported by Vincent Hutsebaut and are covered by CVE-2015-4149. After receiving the report, Tenable audited additional functionality for the same issue and found one internally, which is covered by CVE-2015-4150 due to their wonky abstraction rules. =)

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

Solution

Tenable has released a patch for SecurityCenter 4.6.2.2, 4.7.1, and 4.8.2 that addresses these issues.

http://static.tenable.com/prod_docs/upgrade_security_center.html

The patch can be obtained from:

https://support.tenable.com/support-center/index.php?x=&mod_id=160

File	   		 md5sum
SC-201507.3-4.6.2.2.tgz  a59aad0e37a6277c26b93eb544eef0c5
SC-201507.3-4.7.1.tgz    48303b5f20fed21eab3417ffe32752ad
SC-201507.3-4.8.2.tgz    46b5e501b1584d1ec18716b4e532e381

Users of SecurityCenter 5.0.0.1 must upgrade to 5.0.1 to resolve this issue.

Users of the Tenable Appliance 3.5.0 or 3.6.0 must upgrade to 3.7.0 to resolve this issue.

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]

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