Oracle Linux 8 : sudo (ELSA-2021-1723)

critical Nessus Plugin ID 149936

Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2021-1723 advisory.

- CVE-2021-3156 Resolves: rhbz#1917734
- CVE-2021-23239 sudo: possible directory existence test due to race condition in sudoedit Resolves: rhzb#1916434
- CVE-2021-23240 sudo: symbolic link attack in SELinux-enabled sudoedit Resolves: rhbz#1917038

Tenable has extracted the preceding description block directly from the Oracle Linux 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 sudo package.

See Also

https://linux.oracle.com/errata/ELSA-2021-1723.html

Plugin Details

Severity: Critical

ID: 149936

File Name: oraclelinux_ELSA-2021-1723.nasl

Version: 1.5

Type: local

Agent: unix

Published: 5/26/2021

Updated: 10/23/2024

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.4

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

CVSS Score Source: CVE-2021-23240

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.9

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:sudo, cpe:/o:oracle:linux:8

Required KB Items: Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/25/2021

Vulnerability Publication Date: 1/12/2021

Reference Information

CVE: CVE-2021-23239, CVE-2021-23240