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[R1] Nessus 7.1.0 Fixes Multiple Vulnerabilities

Medium

Synopsis

Nessus versions 7.0.3 and earlier have been found vulnerable to two separate issues.

The first vulnerability (XSS) exists due to improper input validation. An authenticated attacker could create and upload a .nessus file, that may be viewed by an administrator allowing for the execution of arbitrary script code in a user's browser session. In other scenarios, XSS could occur by altering system variables from the Advanced Settings.

CVE-2018-1147 - CVSSv2 (AV:A/AC:H/Au:M/C:P/I:C/A:P/E:POC/RL:OF/RC:C/CDP:L/TD:L/CR:L/IR:L/AR:L)

The second vulnerability (Session Fixation) exists due to insufficient session management. An authenticated attacker could maintain system access after a password change due to session fixation.

CVE-2018-1148 - CVSSv2 (AV:N/AC:M/Au:S/C:N/I:P/A:N/E:POC/RL:OF/RC:C/CDP:L/TD:M/CR:ND/IR:ND/AR:ND)

Solution

Tenable has released Nessus version 7.1.0 to address these vulnerabilities. The installation files can be obtained from the Tenable Downloads Portal (https://www.tenable.com/downloads/nessus)

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-2018-05
Risk Factor: Medium
Credit:
Toshitsugu Yoneyama of Mitsui Bussan Secure Directions, Inc. / Vincent Yiu of MDSec Consulting
CVSSv2 Base / Temporal Score
5.2 / 4.1 - CVE-2018-1147
3.5 / 2.7 - CVE-2018-1148
CVSSv2 Vector:
(AV:A/AC:H/Au:M/C:P/I:C/A:P/E:POC/RL:OF/RC:C/CDP:L/TD:L/CR:L/IR:L/AR:L)
(AV:N/AC:M/Au:S/C:N/I:P/A:N/E:POC/RL:OF/RC:C/CDP:L/TD:M/CR:ND/IR:ND/AR:ND)

Affected Products

Nessus 7.0.3 and earlier

Advisory Timeline

2018-05-15 - [R1] Initial Release

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