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Vulnerability Intelligence

CVE-2018-1111

HighPublic exploit

DHCP packages in Red Hat Enterprise Linux 6 and 7, Fedora 28, and earlier are vulnerable to a command injection flaw in the NetworkManager integration script included in the DHCP client.

Published May 17, 2018 · Updated Nov 21, 2024

Key Facts

Patch immediately
  • CVE-2018-1111 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Enterprise Virtualization (Redhat), Enterprise Virtualization Host (Redhat), Fedora (Fedoraproject) and 14 more products.
  • It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
  • EPSS estimates a 98% probability of exploitation in the next 30 days.
  • Fixed versions are available, including dhclient 12:4.1.1-53.P1.0.1.el6_9.4, dhclient 12:4.1.1-53.P1.28.amzn1, dhclient 12:4.2.5-68.0.1.el7_5.1.
  • Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3.1

7.5

CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

98%

Higher than 99.9% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

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Description

DHCP packages in Red Hat Enterprise Linux 6 and 7, Fedora 28, and earlier are vulnerable to a command injection flaw in the NetworkManager integration script included in the DHCP client. 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.

Affected Products

49 affected entries in total
ProductAffected versionsFixed in
Enterprise VirtualizationRedhat4.0, 4.2n/a
Enterprise Virtualization HostRedhat4.0n/a
FedoraFedoraproject26, 27, 28n/a
Enterprise LinuxRedhat6.0, 6.4, 6.5, 6.6, 6.7, 7.0, 7.2, 7.3n/a
Enterprise Linux DesktopRedhat6.0, 7.0n/a
12 more affected products in the full CVE brief

Patched Releases

dhclient

12:4.1.1-53.P1.0.1.el6_9.4, 12:4.1.1-53.P1.28.amzn1, 12:4.2.5-68.0.1.el7_5.1, 12:4.2.5-68.amzn2.1.2

dhcp

12:4.1.1-38.P1.el6_5.1, 12:4.1.1-53.P1.0.1.el6_9.4, 12:4.1.1-53.P1.28.amzn1, 12:4.2.5-47.el7_3.1, 12:4.2.5-68.0.1.el7_5.1, 12:4.2.5-68.amzn2.1.2

dhcp-common

12:4.1.1-53.P1.0.1.el6_9.4, 12:4.1.1-53.P1.28.amzn1, 12:4.2.5-68.0.1.el7_5.1, 12:4.2.5-68.amzn2.1.2

dhcp-devel

12:4.1.1-53.P1.0.1.el6_9.4, 12:4.1.1-53.P1.28.amzn1, 12:4.2.5-68.0.1.el7_5.1, 12:4.2.5-68.amzn2.1.2

dhcp-libs

12:4.2.5-68.0.1.el7_5.1, 12:4.2.5-68.amzn2.1.2

imgbased

0:1.0.16-0.1.el7ev

ovirt-node-ng

0:4.2.0-0.20170814.0.el7

redhat-release-virtualization-host

0:4.2-3.0.el7

redhat-virtualization-host

0:4.2-20180508.0

rhvm-appliance

0:4.2-20180504.0

Timeline

  1. Publicly disclosed

    May 17, 2018

  2. Last updated

    Nov 21, 2024

Weakness Type

  • CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

References

15 more references in the full CVE brief

FAQ

Common Questions.

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