Mandriva Linux Security Advisory : chkrootkit (MDVSA-2014:122) - Nessus

Low Plugin ID: 74480

This page contains detailed information about the Mandriva Linux Security Advisory : chkrootkit (MDVSA-2014:122) 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: 74480
Name: Mandriva Linux Security Advisory : chkrootkit (MDVSA-2014:122)
Filename: mandriva_MDVSA-2014-122.nasl
Vulnerability Published: N/A
This Plugin Published: 2014-06-12
Last Modification Time: 2021-01-06
Plugin Version: 1.7
Plugin Type: local
Plugin Family: Mandriva Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/cpu, Host/local_checks_enabled, Host/Mandrake/release, Host/Mandrake/rpm-list

Vulnerability Information

Severity: Low
Vulnerability Published: N/A
Patch Published: 2014-06-11
CVE [?]: CVE-2014-0476
CPE [?]: cpe:/o:mandriva:business_server:1, p-cpe:/a:mandriva:linux:chkrootkit

Synopsis

The remote Mandriva Linux host is missing a security update.

Description

Updated chkrootkit package fixes security vulnerability :

The chkrootkit script contains a flaw that allows a local attacker to create an executable in /tmp that will be run by the user running chkrootkit (usually root), allowing the attacker to escalate privileges (CVE-2014-0476).

Solution

Update the affected chkrootkit package.

Public Exploits

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

Here's the list of publicly known exploits and PoCs for verifying the Mandriva Linux Security Advisory : chkrootkit (MDVSA-2014:122) vulnerability:

Metasploit: exploit/unix/local/chkrootkit
[Chkrootkit Local Privilege Escalation]
Exploit-DB: exploits/linux/local/38775.rb
[EDB-38775: Chkrootkit - Local Privilege Escalation (Metasploit)]

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:L/AC:H/Au:N/C:P/I:P/A:P/E:F/RL:OF/RC:C

CVSS Base Score:	3.7 (Low)
Impact Subscore:	6.4
Exploitability Subscore:	1.9
CVSS Temporal Score:	3.1 (Low)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	3.1 (Low)

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Plugin Source

#%NASL_MIN_LEVEL 70300

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandriva Linux Security Advisory MDVSA-2014:122. 
# The text itself is copyright (C) Mandriva S.A.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(74480);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2014-0476");
  script_bugtraq_id(67813);
  script_xref(name:"MDVSA", value:"2014:122");

  script_name(english:"Mandriva Linux Security Advisory : chkrootkit (MDVSA-2014:122)");
  script_summary(english:"Checks rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Mandriva Linux host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated chkrootkit package fixes security vulnerability :

The chkrootkit script contains a flaw that allows a local attacker to
create an executable in /tmp that will be run by the user running
chkrootkit (usually root), allowing the attacker to escalate
privileges (CVE-2014-0476)."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://advisories.mageia.org/MGASA-2014-0249.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected chkrootkit package."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/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:'Chkrootkit Local Privilege Escalation');
  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:mandriva:linux:chkrootkit");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:business_server:1");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/06/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/12");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Mandriva Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/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);
if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);


flag = 0;
if (rpm_check(release:"MDK-MBS1", cpu:"x86_64", reference:"chkrootkit-0.49-6.1.mbs1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_note(port:0, extra:rpm_report_get());
  else security_note(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/mandriva_MDVSA-2014-122.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\mandriva_MDVSA-2014-122.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/mandriva_MDVSA-2014-122.nasl

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How to Run

Here is how to run the Mandriva Linux Security Advisory : chkrootkit (MDVSA-2014:122) 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 Mandriva Local Security Checks plugin family.
On the right side table select Mandriva Linux Security Advisory : chkrootkit (MDVSA-2014:122) plugin ID 74480.
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 mandriva_MDVSA-2014-122.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a mandriva_MDVSA-2014-122.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - mandriva_MDVSA-2014-122.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 mandriva_MDVSA-2014-122.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

67813

MDVSA | Mandriva Security Advisory:

2014:122

See also:

Similar and related Nessus plugins:

78313 - Amazon Linux AMI : chkrootkit (ALAS-2014-370)
74294 - Debian DSA-2945-1 : chkrootkit - security update
74500 - Fedora 20 : chkrootkit-0.49-9.fc20 (2014-7071)
74502 - Fedora 19 : chkrootkit-0.49-9.fc19 (2014-7090)
103273 - GLSA-201709-05 : chkrootkit: Local privilege escalation
74322 - Ubuntu 10.04 LTS / 12.04 LTS / 13.10 / 14.04 LTS : chkrootkit vulnerability (USN-2230-1)
11262 - Default Password (D13hh[) for 'root' Account
11261 - Default Password (D13HH[) for 'root' Account
11264 - Default Password (wh00t!) for 'root' Account

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file mandriva_MDVSA-2014-122.nasl version 1.7. For more plugins, visit the Nessus Plugin Library.

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Mandriva Linux Security Advisory : chkrootkit (MDVSA-2014:122) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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