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Ubuntu 20.04 LTS : Apache Log4j 2 vulnerability (USN-5197-1)

critical Nessus Plugin ID 156104

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5197-1 advisory.

 It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non- default configurations. An attacker could use this vulnerability to cause a denial of service. Please see the following link for more information: https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/Log4Shell

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected liblog4j2-java package.

See Also

https://ubuntu.com/security/notices/USN-5197-1

Plugin Details

Severity: Critical

ID: 156104

File Name: ubuntu_USN-5197-1.nasl

Version: 1.17

Type: local

Agent: unix

Published: 12/15/2021

Updated: 8/28/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 10.0

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 8.1

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2021-44228

CVSS v3

Risk Factor: Critical

Base Score: 10

Temporal Score: 9.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:liblog4j2-java

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/15/2021

Vulnerability Publication Date: 12/10/2021

CISA Known Exploited Vulnerability Due Dates: 12/24/2021, 5/22/2023

Exploitable With

CANVAS (CANVAS)

Core Impact

Reference Information

CVE: CVE-2021-44228, CVE-2021-45046

IAVA: 0001-A-0650, 2021-A-0573, 2021-A-0597

USN: 5197-1