Detections
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EulerOS 2.0 SP3 : zsh (EulerOS-SA-2020-2075)

high Nessus Plugin ID 140842

Synopsis

The remote EulerOS host is missing a security update.

Description

According to the version of the zsh package installed, the EulerOS installation on the remote host is affected by the following vulnerability :

 - In Zsh before 5.8, attackers able to execute commands can regain privileges dropped by the --no-PRIVILEGED option. Zsh fails to overwrite the saved uid, so the original privileges can be restored by executing MODULE_PATH=/dir/with/module zmodload with a module that calls setuid().(CVE-2019-20044)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected zsh package.

See Also

http://www.nessus.org/u?39f7fed6

Plugin Details

Severity: High

ID: 140842

File Name: EulerOS_SA-2020-2075.nasl

Version: 1.5

Type: local

Published: 9/28/2020

Updated: 2/19/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2019-20044

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:zsh, cpe:/o:huawei:euleros:2.0

Required KB Items: Host/local_checks_enabled, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp

Excluded KB Items: Host/EulerOS/uvp_version

Exploit Ease: No known exploits are available

Patch Publication Date: 9/28/2020

Reference Information

CVE: CVE-2019-20044