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

2012-08-31T00:00:00
ID FREEBSD_PKG_16846D1EF1DE11E18BD80022156E8794.NASL
Type nessus
Reporter Tenable
Modified 2013-11-18T00:00:00

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.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2013 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("compat.inc");

if (description)
{
  script_id(61740);
  script_version("$Revision: 1.12 $");
  script_cvs_date("$Date: 2013/11/18 01:30:17 $");

  script_cve_id("CVE-2012-4681");
  script_xref(name:"CERT", value:"636312");

  script_name(english:"FreeBSD : Java 1.7 -- security manager bypass (16846d1e-f1de-11e1-8bd8-0022156e8794)");
  script_summary(english:"Checks for updated packages in pkg_info output");

  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"
  );
  # http://www.freebsd.org/ports/portaudit/16846d1e-f1de-11e1-8bd8-0022156e8794.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?d423cd32"
  );
  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:"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_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_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2013 Tenable Network Security, Inc.");
  script_family(english:"FreeBSD Local Security Checks");

  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");