CVE-2021-20079
Tenable Nessus vulnerability analysis and mitigation

Overview

A privilege escalation vulnerability was discovered in Nessus versions 8.13.2 and earlier, identified as CVE-2021-20079. This vulnerability could allow a Nessus administrator user to upload a specially crafted file that could lead to gaining administrator privileges on the Nessus host. The vulnerability was disclosed on June 29, 2021 (NVD).

Technical details

The vulnerability has been assigned a Medium risk factor with a CVSSv2 Base Score of 6.8 and Temporal Score of 5.3. The CVSSv2 Vector is (AV:L/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:OF/RC:C), indicating local access is required, low attack complexity, and requires single authentication (Tenable Advisory).

Impact

If successfully exploited, this vulnerability could allow an attacker with Nessus administrator user privileges to escalate their privileges to gain administrator access on the underlying Nessus host system (Tenable Advisory).

Mitigation and workarounds

Tenable has released Nessus 8.14.0 to address this vulnerability. Users are advised to upgrade to this version or later through the Tenable Downloads Portal (Tenable Advisory).

Additional resources


SourceThis report was generated using AI

Related Tenable Nessus vulnerabilities:

CVE ID

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Technologies

Component name

CISA KEV exploit

Has fix

Published date

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