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AUSCERT External Security Bulletin Redistribution
ESB-2023.0567
Tenable Plugin Feed ID #202212212055 Fixes Privilege
Escalation Vulnerability
31 January 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: tenable.io
tenable.sc
Nessus
Publisher: Tenable
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Resolution: Patch/Upgrade
CVE Names: CVE-2023-0524
Original Bulletin:
https://www.tenable.com/security/tns-2023-04
Comment: CVSS (Max): 9.1 CVE-2023-0524 (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H)
CVSS Source: Tenable
Calculator: https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
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Tenable Plugin Feed ID #202212212055 Fixes Privilege Escalation
Vulnerability
Critical
Synopsis
As part of our Security Development Lifecycle, a potential privilege escalation
issue was identified internally. This could allow a malicious actor with
sufficient permissions to modify environment variables and abuse an impacted
plugin in order to escalate privileges.
We have resolved the issue and also 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 to the
affected products via the Tenable plugin feed in feed serial numbers equal to
or greater than #202212212055.
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-2023-0524
Tenable Advisory ID
TNS-2023-04
Risk Factor
Critical
CVSSv3 Base / Temporal Score
9.1 / 7.9
CVSSv3 Vector
AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected Products
tenable.io
tenable.sc
Nessus
Advisory Timeline
2023-01-30 - [R1] Initial Release
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