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[R3] Tenable Nessus Web UI Reflected XSS

Medium
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Synopsis

Nessus contains a flaw that allows a reflected cross-site scripting (XSS) attack. This flaw exists because the Web GUI (nessusd_www_server.nbin) does not validate unspecified input to a GET parameter before returning it to users. This may allow a context-dependent attacker to create a specially crafted request that would execute arbitrary script code in a user's browser session within the trust relationship between their browser and the server.

Solution

Tenable has Nessus to address this issue. Please see the instructions below:

Tenable has released version 1.2.4 of the Web GUI for all supported operating systems and architectures.

By default, Nessus updates the plugins once every day. Users do not need to do anything to receive the update.

Additional References

https://discussions.nessus.org/message/7245#7245

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

CVE ID: CVE-2010-2914
Tenable Advisory ID: TNS-2010-01
Risk Factor: Medium
Credit:
Emmanuel Bouillon (<a href="http://www.nc3a.nato.int/" target="_blank">NATO C3 Agency</a>)
CVSSv2 Base / Temporal Score
4.3 / 3.6
CVSSv2 Vector:
(AV:N/AC:M/Au:N/C:N/I:P/A:N/E:F/RL:OF/RC:C)

Affected Products

Nessus: 4.2.2 (Web UI 1.2.3)

Disclosure Timeline

2010-06-24 - Vendor Informed
2010-06-24 - Vendor Acknowledged
2010-06-24 - Upgrade Available
2010-06-24 - Issue Disclosed

Advisory Timeline

2014-07-28 - [R1] Initial release
2014-07-29 - [R2] Fix TNS ID
2017-03-01 - [R3] Minor touch-ups
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