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[R1] Nessus 8.15.0 Fixes Multiple Vulnerabilities

High
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Synopsis

Nessus versions 8.14.0 and earlier for Windows were found to contain multiple local privilege escalation vulnerabilities which could allow an authenticated, local administrator to run specific Windows executables as the Nessus host.

Additionally, two third-party components (expat, sqlite) were found to contain vulnerabilities, and updated versions have been made available by the providers.

Out of caution, and in line with best practice, Tenable has implemented fixes for the privilege escalation vulnerabilities, as well as upgraded the bundled third-party components to address the potential impact of these issues. Nessus 8.15.0 addresses the privilege escalation issues, updates expat to version 2.2.10 and sqlite to version 3.34.1.

Solution

Tenable has released Nessus 8.15.0 to address these issues. The installation files can be obtained from the Tenable Downloads Portal (https://www.tenable.com/downloads/nessus).

Additional References

https://docs.tenable.com/releasenotes/Content/nessus/nessus8150.htm
https://docs.tenable.com/Nessus.htm

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-2021-11
Risk Factor: High
Credit:
Lasse Trolle Borup, Mandiant - CVE-2021-20099
Phillip Castellanos, Information Security Office, The University of Texas at Austin - CVE-2021-20100
CVSSv3 Base / Temporal Score:
7.5 / 6.5 (CVE-2018-20843)
7.5 / 6.5 (CVE-2019-15903)
6.5 / 5.7 (CVE-2019-16168)
7.8 / 6.8 (CVE-2021-20099)
7.8 / 6.8 (CVE-2021-20100)
CVSSv3 Vector:
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C (CVE-2018-20843)
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C (CVE-2019-15903)
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C (CVE-2019-16168)
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C (CVE-2021-20099)
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C (CVE-2021-20100)

Affected Products

Nessus 8.14.0 and earlier

Advisory Timeline

2021-06-15 - [R1] Initial Release
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