Nessus versions 8.2.1 and earlier were found to contain a stored XSS vulnerability due to improper validation of user-supplied input. An authenticated, remote attacker could potentially exploit this vulnerability via a specially crafted request to execute arbitrary script code in a user's browser session. Tenable has released Nessus 8.2.2 to address this issue.
Simultaneous Multi-threading (SMT) in processors can enable local users to exploit software vulnerable to timing attacks via a side-channel timing attack on 'port contention'.
In SecurityCenter versions prior to 5.7.0, a username enumeration issue could allow an unauthenticated attacker to automate the discovery of username aliases via brute force, ultimately facilitating unauthorized access. Server response output has been unified to correct this issue.
In SecurityCenter versions prior to 5.7.0, a cross-site scripting (XSS) issue could allow an authenticated attacker to inject JavaScript code into an image filename parameter within the Reports feature area. Properly updated input validation techniques have been implemented to correct this issue.
In Nessus before 7.1.0, a XSS vulnerability exists due to improper input validation. A remote authenticated attacker could create and upload a .nessus file, which 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 also occur by altering variables from the Advanced Settings.
In Nessus before 7.1.0, Session Fixation exists due to insufficient session management within the application. An authenticated attacker could maintain system access due to session fixation after a user password change.
Tenable Appliance versions 4.6.1 and earlier have been found to contain a single XSS vulnerability. Utilizing a specially crafted request, an authenticated attacker could potentially execute arbitrary JavaScript code by manipulating certain URL parameters related to offline plugins.
When installing Nessus to a directory outside of the default location, Nessus versions prior to 7.0.3 did not enforce secure permissions for sub-directories. This could allow for local privilege escalation if users had not secured the directories in the installation location.
The moment module before 2.19.3 for Node.js is prone to a regular expression denial of service via a crafted date string, a different vulnerability than CVE-2016-4055.
SecurityCenter versions 5.5.0, 5.5.1 and 5.5.2 contain a SQL Injection vulnerability that could be exploited by an authenticated user with sufficient privileges to run diagnostic scans. An attacker could exploit this vulnerability by entering a crafted SQL query into the password field of a diagnostic scan within SecurityCenter. Successful exploitation of this vulnerability could allow an attacker to gain unauthorized access.