OracleVM 3.3 / 3.4 : dhcp (OVMSA-2018-0042) - Nessus

High Plugin ID: 109830

This page contains detailed information about the OracleVM 3.3 / 3.4 : dhcp (OVMSA-2018-0042) Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 109830
Name: OracleVM 3.3 / 3.4 : dhcp (OVMSA-2018-0042)
Filename: oraclevm_OVMSA-2018-0042.nasl
Vulnerability Published: 2018-05-17
This Plugin Published: 2018-05-16
Last Modification Time: 2020-07-10
Plugin Version: 1.12
Plugin Type: local
Plugin Family: OracleVM Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/local_checks_enabled, Host/OracleVM/release, Host/OracleVM/rpm-list

Vulnerability Information

Severity: High
Vulnerability Published: 2018-05-17
Patch Published: 2018-05-15
CVE [?]: CVE-2018-1111, CVE-2018-5732, CVE-2018-5733
CPE [?]: cpe:/o:oracle:vm_server:3.3, cpe:/o:oracle:vm_server:3.4, p-cpe:/a:oracle:vm:dhclient, p-cpe:/a:oracle:vm:dhcp-common
In the News: True

Synopsis

The remote OracleVM host is missing one or more security updates.

Description

The remote OracleVM system is missing necessary patches to address critical security updates :

- Added oracle-errwarn-message.patch

- Resolves: #1570897 - Fix comamnd execution in NM script (CVE-2018-1111)

- Resolves: #1550085 - CVE-2018-5733 Avoid reference overflow

<[12:4.1.1-53.P1.2

- Resolves: #1550083 - CVE-2018-5732 Avoid options buffer overflow

- Resolves: #1063217 - failover hangs with both potential-conflict

Solution

Update the affected dhclient / dhcp-common packages.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (Metasploit Framework, Exploit-DB, GitHub)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the OracleVM 3.3 / 3.4 : dhcp (OVMSA-2018-0042) vulnerability:

Metasploit: exploit/unix/dhcp/rhel_dhcp_client_command_injection
[DHCP Client Command Injection (DynoRoot)]
Exploit-DB: exploits/linux/local/44652.py
[EDB-44652: DynoRoot DHCP Client - Command Injection]
Exploit-DB: exploits/linux/remote/44890.rb
[EDB-44890: DHCP Client - Command Injection 'DynoRoot' (Metasploit)]
GitHub: https://dynoroot.ninja/
[CVE-2018-1111]
GitHub: https://github.com/ARGOeu/secmon-probes
[CVE-2018-1111]
GitHub: https://github.com/Macr0phag3/Exp-or-Poc
[CVE-2018-1111]
GitHub: https://github.com/PaloAltoNetworks/research-notes
[CVE-2018-1111]
GitHub: https://github.com/baldassarreFe/FEP3370-advanced-ethical-hacking
[CVE-2018-1111: DHCP exploitation with DynoRoot (CVE-2018-1111)]
GitHub: https://github.com/fbreton/lacework
[CVE-2018-1111]
GitHub: https://github.com/fbreton/lacework
[CVE-2018-5732]
GitHub: https://github.com/kkirsche/CVE-2018-1111
[CVE-2018-1111: CVE-2018-1111 DynoRoot]
GitHub: https://github.com/knqyf263/CVE-2018-1111
[CVE-2018-1111: Environment for DynoRoot (CVE-2018-1111)]

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

CVSS V2 Vector [?]: AV:A/AC:M/Au:N/C:C/I:C/A:C/E:F/RL:OF/RC:C

CVSS Base Score:	7.9 (High)
Impact Subscore:	10.0
Exploitability Subscore:	5.5
CVSS Temporal Score:	6.5 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.5 (Medium)

CVSS V3 Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

CVSS Base Score:	7.5 (High)
Impact Subscore:	5.9
Exploitability Subscore:	1.6
CVSS Temporal Score:	7.0 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	7.0 (High)

STIG Severity [?]: I
STIG Risk Rating: High

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Plugin Source

#
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from OracleVM
# Security Advisory OVMSA-2018-0042.
#

include("compat.inc");

if (description)
{
  script_id(109830);
  script_version("1.12");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/07/10");

  script_cve_id("CVE-2018-1111", "CVE-2018-5732", "CVE-2018-5733");
  script_xref(name:"IAVA", value:"2018-A-0162");
  script_xref(name:"IAVB", value:"2018-B-0034-S");

  script_name(english:"OracleVM 3.3 / 3.4 : dhcp (OVMSA-2018-0042)");
  script_summary(english:"Checks the RPM output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote OracleVM host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote OracleVM system is missing necessary patches to address
critical security updates :

  - Added oracle-errwarn-message.patch

  - Resolves: #1570897 - Fix comamnd execution in NM script
    (CVE-2018-1111)

  - Resolves: #1550085 - CVE-2018-5733 Avoid reference
    overflow

<[12:4.1.1-53.P1.2

  - Resolves: #1550083 - CVE-2018-5732 Avoid options buffer
    overflow

  - Resolves: #1063217 - failover hangs with both
    potential-conflict"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/oraclevm-errata/2018-May/000854.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/oraclevm-errata/2018-May/000853.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected dhclient / dhcp-common packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'DHCP Client Command Injection (DynoRoot)');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:dhclient");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:dhcp-common");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:vm_server:3.3");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:vm_server:3.4");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/05/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/05/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/05/16");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"OracleVM Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleVM/release", "Host/OracleVM/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/OracleVM/release");
if (isnull(release) || "OVS" >!< release) audit(AUDIT_OS_NOT, "OracleVM");
if (! preg(pattern:"^OVS" + "(3\.3|3\.4)" + "(\.[0-9]|$)", string:release)) audit(AUDIT_OS_NOT, "OracleVM 3.3 / 3.4", "OracleVM " + release);
if (!get_kb_item("Host/OracleVM/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "OracleVM", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);

flag = 0;
if (rpm_check(release:"OVS3.3", reference:"dhclient-4.1.1-53.P1.0.1.el6_9.4")) flag++;
if (rpm_check(release:"OVS3.3", reference:"dhcp-common-4.1.1-53.P1.0.1.el6_9.4")) flag++;

if (rpm_check(release:"OVS3.4", reference:"dhclient-4.1.1-53.P1.0.1.el6_9.4")) flag++;
if (rpm_check(release:"OVS3.4", reference:"dhcp-common-4.1.1-53.P1.0.1.el6_9.4")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "dhclient / dhcp-common");
}

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/oraclevm_OVMSA-2018-0042.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\oraclevm_OVMSA-2018-0042.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/oraclevm_OVMSA-2018-0042.nasl

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How to Run

Here is how to run the OracleVM 3.3 / 3.4 : dhcp (OVMSA-2018-0042) as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

Click to start a New Scan.
Select Advanced Scan.
Navigate to the Plugins tab.
On the top right corner click to Disable All plugins.
On the left side table select OracleVM Local Security Checks plugin family.
On the right side table select OracleVM 3.3 / 3.4 : dhcp (OVMSA-2018-0042) plugin ID 109830.
Specify the target on the Settings tab and click to Save the scan.
Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl oraclevm_OVMSA-2018-0042.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a oraclevm_OVMSA-2018-0042.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - oraclevm_OVMSA-2018-0042.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state oraclevm_OVMSA-2018-0042.nasl -t <IP/HOST>

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References

IAVA | Information Assurance Vulnerability Alert:

2018-A-0162

IAVB | Information Assurance Vulnerability Bulletin:

2018-B-0034-S

See also:

Similar and related Nessus plugins:

108274 - RHEL 7 : dhcp (RHSA-2018:0483)
108278 - Scientific Linux Security Update : dhcp on SL7.x x86_64 (20180312)
108338 - CentOS 7 : dhcp (CESA-2018:0483)
108569 - Debian DLA-1313-1 : isc-dhcp security update
108638 - openSUSE Security Update : dhcp (openSUSE-2018-315)
108653 - SUSE SLES11 Security Update : dhcp (SUSE-SU-2018:0810-1)
108655 - SUSE SLED12 / SLES12 Security Update : dhcp (SUSE-SU-2018:0812-1)
108847 - Amazon Linux AMI : dhcp (ALAS-2018-984)
108926 - GLSA-201804-05 : ISC DHCP: Multiple vulnerabilities
109137 - Amazon Linux 2 : dhcp (ALAS-2018-984)
109470 - EulerOS 2.0 SP1 : dhcp (EulerOS-SA-2018-1072)
109471 - EulerOS 2.0 SP2 : dhcp (EulerOS-SA-2018-1073)
109814 - CentOS 7 : dhcp (CESA-2018:1453)
109815 - CentOS 6 : dhcp (CESA-2018:1454)
109820 - Fedora 27 : 12:dhcp (2018-36058ed9f2)
109826 - Oracle Linux 7 : dhcp (ELSA-2018-1453)
109827 - Oracle Linux 6 : dhcp (ELSA-2018-1454)
109839 - RHEL 7 : dhcp (RHSA-2018:1453)
109840 - RHEL 6 : dhcp (RHSA-2018:1454)
109841 - RHEL 7 : dhcp (RHSA-2018:1455)
109842 - RHEL 7 : dhcp (RHSA-2018:1456)
109843 - RHEL 7 : dhcp (RHSA-2018:1457)
109844 - RHEL 6 : dhcp (RHSA-2018:1458)
109845 - RHEL 6 : dhcp (RHSA-2018:1459)
109846 - RHEL 6 : dhcp (RHSA-2018:1460)
109847 - RHEL 6 : dhcp (RHSA-2018:1461)
109849 - Scientific Linux Security Update : dhcp on SL6.x i386/x86_64 (20180515)
109850 - Scientific Linux Security Update : dhcp on SL7.x x86_64 (20180515)
109874 - Fedora 26 : 12:dhcp (2018-5392896132)
109909 - RHEL 7 : Virtualization (RHSA-2018:1524)
109910 - RHEL 7 : Virtualization (RHSA-2018:1525)
110126 - EulerOS 2.0 SP1 : dhcp (EulerOS-SA-2018-1122)
110127 - EulerOS 2.0 SP2 : dhcp (EulerOS-SA-2018-1123)
110194 - Amazon Linux 2 : dhcp (ALAS-2018-1021)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file oraclevm_OVMSA-2018-0042.nasl version 1.12. For more plugins, visit the Nessus Plugin Library.

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OracleVM 3.3 / 3.4 : dhcp (OVMSA-2018-0042) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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