FreeBSD : Java 1.7 -- security manager bypass (16846d1e-f1de-11e1-8bd8-0022156e8794) - Nessus

Critical Plugin ID: 61740

This page contains detailed information about the FreeBSD : Java 1.7 -- security manager bypass (16846d1e-f1de-11e1-8bd8-0022156e8794) 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: 61740
Name: FreeBSD : Java 1.7 -- security manager bypass (16846d1e-f1de-11e1-8bd8-0022156e8794)
Filename: freebsd_pkg_16846d1ef1de11e18bd80022156e8794.nasl
Vulnerability Published: 2012-08-27
This Plugin Published: 2012-08-31
Last Modification Time: 2022-03-08
Plugin Version: 1.16
Plugin Type: local
Plugin Family: FreeBSD Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/FreeBSD/pkg_info, Host/FreeBSD/release, Host/local_checks_enabled

Vulnerability Information

Severity: Critical
Vulnerability Published: 2012-08-27
Patch Published: 2012-08-30
CVE [?]: CVE-2012-4681
CPE [?]: cpe:/o:freebsd:freebsd, p-cpe:/a:freebsd:freebsd:linux-sun-jdk, p-cpe:/a:freebsd:freebsd:linux-sun-jre, p-cpe:/a:freebsd:freebsd:openjdk
Exploited by Malware: True

Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

US-CERT reports :

Oracle Java Runtime Environment (JRE) 1.7 contains a vulnerability that may allow an applet to call setSecurityManager in a way that allows setting of arbitrary permissions.

By leveraging the public, privileged getField() function, an untrusted Java applet can escalate its privileges by calling the setSecurityManager() function to allow full privileges, without requiring code signing.

This vulnerability is being actively exploited in the wild, and exploit code is publicly available.

This exploit does not only affect Java applets, but every piece of software that relies on the Java Security Manager for sandboxing executable code is affected: malicious code can totally disable Security Manager.

Solution

Update the affected packages.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (Metasploit Framework, GitHub, Immunity Canvas, Core Impact)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the FreeBSD : Java 1.7 -- security manager bypass (16846d1e-f1de-11e1-8bd8-0022156e8794) vulnerability:

Metasploit: exploit/multi/browser/java_jre17_exec
[Java 7 Applet Remote Code Execution]
GitHub: https://github.com/ZH3FENG/PoCs-CVE_2012_4681
[CVE-2012-4681: A Simple PoC for CVE-2012-4681]
GitHub: https://github.com/benjholla/CVE-2012-4681-Armoring
[CVE-2012-4681: An A/V evasion armoring experiment for CVE-2012-4681]
GitHub: https://github.com/hackerhouse-opensource/exploits
[CVE-2012-4681]
GitHub: https://github.com/thongsia/Public-Pcaps
[CVE-2012-4681]
Immunity Canvas: CANVAS

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:N/AC:L/Au:N/C:C/I:C/A:C

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

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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 the FreeBSD VuXML database :
#
# Copyright 2003-2018 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

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

if (description)
{
  script_id(61740);
  script_version("1.16");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/03/08");

  script_cve_id("CVE-2012-4681");
  script_xref(name:"CERT", value:"636312");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/03/24");

  script_name(english:"FreeBSD : Java 1.7 -- security manager bypass (16846d1e-f1de-11e1-8bd8-0022156e8794)");

  script_set_attribute(attribute:"synopsis", value:
"The remote FreeBSD host is missing one or more security-related
updates.");
  script_set_attribute(attribute:"description", value:
"US-CERT reports :

Oracle Java Runtime Environment (JRE) 1.7 contains a vulnerability
that may allow an applet to call setSecurityManager in a way that
allows setting of arbitrary permissions.

By leveraging the public, privileged getField() function, an untrusted
Java applet can escalate its privileges by calling the
setSecurityManager() function to allow full privileges, without
requiring code signing.

This vulnerability is being actively exploited in the wild, and
exploit code is publicly available.

This exploit does not only affect Java applets, but every piece of
software that relies on the Java Security Manager for sandboxing
executable code is affected: malicious code can totally disable
Security Manager.");
  # http://www.deependresearch.org/2012/08/java-7-vulnerability-analysis.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1add1ebe");
  # http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2012-August/020065.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c9746b5f");
  # http://www.oracle.com/technetwork/topics/security/alert-cve-2012-4681-1835715.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?00370937");
  # https://vuxml.freebsd.org/freebsd/16846d1e-f1de-11e1-8bd8-0022156e8794.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c7875dee");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Java 7 Applet Remote Code Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:"CANVAS");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/08/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/08/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/31");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:linux-sun-jdk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:linux-sun-jre");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:openjdk");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"FreeBSD Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2012-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


include("audit.inc");
include("freebsd_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (pkg_test(save_report:TRUE, pkg:"openjdk>=7.0<7.6.24_1")) flag++;
if (pkg_test(save_report:TRUE, pkg:"linux-sun-jdk>=7.0<7.7")) flag++;
if (pkg_test(save_report:TRUE, pkg:"linux-sun-jre>=7.0<7.7")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:pkg_report_get());
  else security_hole(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/freebsd_pkg_16846d1ef1de11e18bd80022156e8794.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\freebsd_pkg_16846d1ef1de11e18bd80022156e8794.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/freebsd_pkg_16846d1ef1de11e18bd80022156e8794.nasl

Go back to menu.

How to Run

Here is how to run the FreeBSD : Java 1.7 -- security manager bypass (16846d1e-f1de-11e1-8bd8-0022156e8794) 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 FreeBSD Local Security Checks plugin family.
On the right side table select FreeBSD : Java 1.7 -- security manager bypass (16846d1e-f1de-11e1-8bd8-0022156e8794) plugin ID 61740.
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 freebsd_pkg_16846d1ef1de11e18bd80022156e8794.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a freebsd_pkg_16846d1ef1de11e18bd80022156e8794.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - freebsd_pkg_16846d1ef1de11e18bd80022156e8794.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 freebsd_pkg_16846d1ef1de11e18bd80022156e8794.nasl -t <IP/HOST>

Go back to menu.

References

CERT | Computer Emergency Response Team:

636312

See also:

Similar and related Nessus plugins:

61789 - CentOS 6 : java-1.7.0-openjdk (CESA-2012:1223)
72139 - GLSA-201401-30 : Oracle JRE/JDK: Multiple vulnerabilities (ROBOT)
74748 - openSUSE Security Update : java-1_7_0-openjdk (openSUSE-SU-2012:1154-1)
64839 - Oracle Java JDK / JRE 6 < Update 35 Multiple Vulnerabilities
61681 - Oracle Java SE 7 < Update 7 Multiple Vulnerabilities
64841 - Oracle Java SE 7 < Update 7 Multiple Vulnerabilities (Unix)
68611 - Oracle Linux 6 : java-1.7.0-openjdk (ELSA-2012-1223)
61769 - RHEL 6 : java-1.7.0-openjdk (RHSA-2012:1223)
61770 - RHEL 6 : java-1.7.0-oracle (RHSA-2012:1225)
62196 - RHEL 6 : java-1.7.0-ibm (RHSA-2012:1289)
61786 - Scientific Linux Security Update : java-1.7.0-openjdk on SL6.x i386/x86_64 (20120903)
62071 - Scientific Linux Security Update : java-1.6.0-sun on SL5.x i386/x86_64 (20120904)
64169 - SuSE 11.2 Security Update : OpenJDK (SAT Patch Number 6987)
64170 - SuSE 11.2 Security Update : IBM Java (SAT Patch Number 6839)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file freebsd_pkg_16846d1ef1de11e18bd80022156e8794.nasl version 1.16. For more plugins, visit the Nessus Plugin Library.

Go back to menu.

FreeBSD : Java 1.7 -- security manager bypass (16846d1e-f1de-11e1-8bd8-0022156e8794) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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