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                              CERT-Renater

                   Note d'Information No. 2023/VULN237

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DATE                : 29/06/2023

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Systems running Tenable.io, Nessus,
                           Tenable Security Center.

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https://www.tenable.com/security/tns-2023-21
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[R1] Tenable Plugin Feed ID #202306261202 Fixes Privilege Escalation
Vulnerability

Medium

Synopsis

As a part of Tenable's vulnerability disclosure program, a
vulnerability in a Nessus plugin was identified and reported.
This vulnerability could allow a malicious actor with sufficient
permissions on a scan target to place a binary in a specific
filesystem location, and abuse the impacted plugin in order to
escalate privileges.

We have resolved the issue and made several defense-in-depth fixes
alongside.
While the probability of successful exploitation is low, Tenable is
committed to securing our customers' environments and our products.
The updates have been distributed via the Tenable plugin feed.


Solution

Tenable has released updates to plugins to resolve the issue as
well as the associated defense-in-depth fixes. The updates have
been distributed via the Tenable plugin feed in feed serial
numbers equal to or greater than # 202306261202.

We would like to thank Patrick Romero from CrowdStrike for his
work on this finding.


Additional References

https://www.tenable.com/plugins/nessus/release-notes
https://community.tenable.com/s/feed/0D53a00009F0L27CAF

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


Risk Information

CVE ID: CVE-2023-2005
Tenable Advisory ID
TNS-2023-21
Credit
Patrick Romero - CrowdStrike
Risk Factor
Medium
CVSSv3 Base / Temporal Score
6.3 / 6.2
CVSSv3 Vector
AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C


Affected Products

Tenable.io
Tenable Security Center
Nessus


Disclosure Timeline

2023-04-02 - Report received by Tenable
2023-04-05 - Report confirmed as valid
2023-04-18 - CVE ID requested
2023-06-26 - All fixes across multiple products deployed


Advisory Timeline

2023-06-26 - [R1] Initial Release

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+ CERT-RENATER        |    tel : 01-53-94-20-44         +
+ 23/25 Rue Daviel    |    fax : 01-53-94-20-41         +
+ 75013 Paris         |   email:cert@support.renater.fr +
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