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Debian DLA-1964-1 : sudo security update

high Nessus Plugin ID 130031

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Synopsis

The remote Debian host is missing a security update.

Description

In sudo, a program that provides limited super user privileges to specific users, an attacker with access to a Runas ALL sudoer account can bypass certain policy blacklists and session PAM modules, and can cause incorrect logging, by invoking sudo with a crafted user ID. For example, this allows bypass of (ALL,!root) configuration for a 'sudo
-u#-1' command.

See https://www.sudo.ws/alerts/minus_1_uid.html for further information.

For Debian 8 'Jessie', this problem has been fixed in version 1.8.10p3-1+deb8u6.

We recommend that you upgrade your sudo packages.

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

Solution

Upgrade the affected sudo, and sudo-ldap packages.

See Also

https://lists.debian.org/debian-lts-announce/2019/10/msg00022.html

https://packages.debian.org/source/jessie/sudo

https://www.sudo.ws/alerts/minus_1_uid.html

Plugin Details

Severity: High

ID: 130031

File Name: debian_DLA-1964.nasl

Version: 1.6

Type: local

Agent: unix

Published: 10/18/2019

Updated: 4/17/2024

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7.4

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

CVSS Score Source: CVE-2019-14287

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.2

Vector: CVSS:3.0/AV:N/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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:sudo, p-cpe:/a:debian:debian_linux:sudo-ldap, cpe:/o:debian:debian_linux:8.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/17/2019

Vulnerability Publication Date: 10/17/2019

Exploitable With

Core Impact

Reference Information

CVE: CVE-2019-14287