RHEL 5 : sudo (RHSA-2010:0475)

high Nessus Plugin ID 47027

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Synopsis

The remote Red Hat host is missing a security update for sudo.

Description

The remote Redhat Enterprise Linux 5 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2010:0475 advisory.

The sudo (superuser do) utility allows system administrators to give certain users the ability to run commands as root.

A flaw was found in the way sudo handled the presence of duplicated environment variables. A local user authorized to run commands using sudo could use this flaw to set additional values for the environment variables set by sudo, which could result in those values being used by the executed command instead of the values set by sudo. This could possibly lead to certain intended restrictions being bypassed, such as the secure_path setting. (CVE-2010-1646)

Red Hat would like to thank Anders Kaseorg and Evan Broder of Ksplice, Inc.
for responsibly reporting this issue.

Users of sudo should upgrade to this updated package, which contains a backported patch to correct this issue.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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 RHEL sudo package based on the guidance in RHSA-2010:0475.

See Also

http://www.nessus.org/u?2648b6b4

http://www.redhat.com/security/updates/classification/#moderate

http://www.sudo.ws/sudo/alerts/secure_path.html

https://bugzilla.redhat.com/show_bug.cgi?id=598154

https://access.redhat.com/errata/RHSA-2010:0475

Plugin Details

Severity: High

ID: 47027

File Name: redhat-RHSA-2010-0475.nasl

Version: 1.21

Type: local

Agent: unix

Published: 6/16/2010

Updated: 11/4/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.9

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

CVSS Score Source: CVE-2010-1646

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: cpe:/o:redhat:enterprise_linux:5, p-cpe:/a:redhat:enterprise_linux:sudo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/15/2010

Vulnerability Publication Date: 6/7/2010

Reference Information

CVE: CVE-2010-1646

BID: 40538

RHSA: 2010:0475