Detections
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Oracle Linux 7 : sudo (ELSA-2021-0221)

high Nessus Plugin ID 145461

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Synopsis

The remote Oracle Linux host is missing a security update.

Description

The remote Oracle Linux 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2021-0221 advisory.

 - Sudo before 1.9.5p2 has a Heap-based Buffer Overflow, allowing privilege escalation to root via sudoedit
 -s and a command-line argument that ends with a single backslash character: (CVE-2021-3156)

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

Solution

Update the affected sudo and / or sudo-devel packages.

See Also

https://linux.oracle.com/errata/ELSA-2021-0221.html

Plugin Details

Severity: High

ID: 145461

File Name: oraclelinux_ELSA-2021-0221.nasl

Version: 1.10

Type: local

Agent: unix

Published: 1/27/2021

Updated: 1/18/2023

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

CVSS Score Source: CVE-2021-3156

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

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:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:oracle:linux:7, p-cpe:/a:oracle:linux:sudo, p-cpe:/a:oracle:linux:sudo-devel

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/27/2021

Vulnerability Publication Date: 1/25/2021

CISA Known Exploited Vulnerability Due Dates: 4/27/2022

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (Sudo Heap-Based Buffer Overflow)

Reference Information

CVE: CVE-2021-3156

IAVA: 2021-A-0053