Detections
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EulerOS Virtualization 2.11.1 : sudo (EulerOS-SA-2023-2078)

high Nessus Plugin ID 176864

Synopsis

The remote EulerOS Virtualization host is missing multiple security updates.

Description

According to the versions of the sudo package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

 - Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a plugins/sudoers/auth/passwd.c array-out-of-bounds error that can result in a heap-based buffer over-read. This can be triggered by arbitrary local users with access to Sudo by entering a password of seven characters or fewer. The impact could vary depending on the system libraries, compiler, and processor architecture. (CVE-2022-43995)

 - In Sudo before 1.9.12p2, the sudoedit (aka -e) feature mishandles extra arguments passed in the user- provided environment variables (SUDO_EDITOR, VISUAL, and EDITOR), allowing a local attacker to append arbitrary entries to the list of files to process. This can lead to privilege escalation. Affected versions are 1.8.0 through 1.9.12.p1. The problem exists because a user-specified editor may contain a '--' argument that defeats a protection mechanism, e.g., an EDITOR='vim -- /path/to/extra/file' value.
 (CVE-2023-22809)

 - Sudo before 1.9.13p2 has a double free in the per-command chroot feature. (CVE-2023-27320)

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 sudo packages.

See Also

http://www.nessus.org/u?b75f3742

Plugin Details

Severity: High

ID: 176864

File Name: EulerOS_SA-2023-2078.nasl

Version: 1.2

Type: local

Published: 6/7/2023

Updated: 2/8/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.9

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

CVSS Score Source: CVE-2023-27320

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.2

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:F/RL:O/RC:C

CVSS Score Source: CVE-2023-22809

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:sudo, cpe:/o:huawei:euleros:uvp:2.11.1

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/6/2023

Vulnerability Publication Date: 11/2/2022

Exploitable With

Metasploit (Sudoedit Extra Arguments Priv Esc)

Reference Information

CVE: CVE-2022-43995, CVE-2023-22809, CVE-2023-27320

IAVA: 2023-A-0121-S