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RHEL 7 : dhcp (RHSA-2018:1455)

high Nessus Plugin ID 109841

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Synopsis

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

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2018:1455 advisory.

 The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address. The dhcp packages provide a relay agent and ISC DHCP service required to enable and administer DHCP on a network.

 Security Fix(es):

 * A command injection flaw was found in the NetworkManager integration script included in the DHCP client packages in Red Hat Enterprise Linux. A malicious DHCP server, or an attacker on the local network able to spoof DHCP responses, could use this flaw to execute arbitrary commands with root privileges on systems using NetworkManager and configured to obtain network configuration using the DHCP protocol.
 (CVE-2018-1111)

 Red Hat would like to thank Felix Wilhelm (Google Security Team) for reporting 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 dhcp package based on the guidance in RHSA-2018:1455.

See Also

http://www.nessus.org/u?4cac07de

https://access.redhat.com/security/vulnerabilities/3442151

https://bugzilla.redhat.com/show_bug.cgi?id=1567974

https://access.redhat.com/errata/RHSA-2018:1455

https://access.redhat.com/security/updates/classification/#critical

Plugin Details

Severity: High

ID: 109841

File Name: redhat-RHSA-2018-1455.nasl

Version: 1.16

Type: local

Agent: unix

Published: 5/16/2018

Updated: 11/5/2024

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 7.9

Temporal Score: 6.5

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

CVSS Score Source: CVE-2018-1111

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 7

Vector: CVSS:3.0/AV:A/AC:H/PR:N/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:redhat:enterprise_linux:dhcp-common, p-cpe:/a:redhat:enterprise_linux:dhcp-libs, p-cpe:/a:redhat:enterprise_linux:dhcp-devel, cpe:/o:redhat:rhel_eus:7.4, p-cpe:/a:redhat:enterprise_linux:dhcp, p-cpe:/a:redhat:enterprise_linux:dhclient

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/15/2018

Vulnerability Publication Date: 5/17/2018

Exploitable With

Metasploit (DHCP Client Command Injection (DynoRoot))

Reference Information

CVE: CVE-2018-1111

CWE: 77

IAVA: 2018-A-0162

RHSA: 2018:1455