Detections
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Oracle Linux 8 : trousers (ELSA-2021-1627)

high Nessus Plugin ID 149966

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Synopsis

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

Description

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-1627 advisory.

 - An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges instead of by the tss user, it fails to drop the root gid privilege when no longer needed.
 (CVE-2020-24330)

 - An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges, the tss user still has read and write access to the /etc/tcsd.conf file (which contains various settings related to this daemon). (CVE-2020-24331)

 - An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges, the creation of the system.data file is prone to symlink attacks. The tss user can be used to create or corrupt existing files, which could possibly lead to a DoS attack. (CVE-2020-24332)

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 trousers, trousers-devel and / or trousers-lib packages.

See Also

https://linux.oracle.com/errata/ELSA-2021-1627.html

Plugin Details

Severity: High

ID: 149966

File Name: oraclelinux_ELSA-2021-1627.nasl

Version: 1.3

Type: local

Agent: unix

Published: 5/26/2021

Updated: 12/28/2023

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2020-24331

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

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:trousers-devel, p-cpe:/a:oracle:linux:trousers-lib, cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:trousers

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: 5/25/2021

Vulnerability Publication Date: 8/13/2020

Reference Information

CVE: CVE-2020-24330, CVE-2020-24331, CVE-2020-24332