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nessusThis script is Copyright (C) 2016-2021 and is owned by Tenable, Inc. or an Affiliate thereof.FREEBSD_PKG_3B5C2362BD0711E5B7EF5453ED2E2B49.NASL
HistoryJan 19, 2016 - 12:00 a.m.

FreeBSD : libproxy -- stack-based buffer overflow (3b5c2362-bd07-11e5-b7ef-5453ed2e2b49)

2016-01-1900:00:00
This script is Copyright (C) 2016-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
13

10 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.012 Low

EPSS

Percentile

84.9%

Tomas Hoger reports :

A buffer overflow flaw was discovered in the libproxy’s url::get_pac() used to download proxy.pac proxy auto-configuration file. A malicious host hosting proxy.pac, or a man in the middle attacker, could use this flaw to trigger a stack-based buffer overflow in an application using libproxy, if proxy configuration instructed it to download proxy.pac file from a remote HTTP server.

#%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(87982);
  script_version("2.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2012-4504");

  script_name(english:"FreeBSD : libproxy -- stack-based buffer overflow (3b5c2362-bd07-11e5-b7ef-5453ed2e2b49)");
  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:
"Tomas Hoger reports :

A buffer overflow flaw was discovered in the libproxy's url::get_pac()
used to download proxy.pac proxy auto-configuration file. A malicious
host hosting proxy.pac, or a man in the middle attacker, could use
this flaw to trigger a stack-based buffer overflow in an application
using libproxy, if proxy configuration instructed it to download
proxy.pac file from a remote HTTP server."
  );
  # https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-4504
  script_set_attribute(
    attribute:"see_also",
    value:"https://nvd.nist.gov/vuln/detail/CVE-2012-4504"
  );
  # http://www.openwall.com/lists/oss-security/2012/10/12/1
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.openwall.com/lists/oss-security/2012/10/12/1"
  );
  # https://github.com/libproxy/libproxy/commit/c440553c12836664afd24a24fb3a4d10a2facd2c
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?ef5c1679"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=864417"
  );
  # https://groups.google.com/forum/?fromgroups=#!topic/libproxy/VxZ8No7mT0E
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?e3e8a475"
  );
  # https://vuxml.freebsd.org/freebsd/3b5c2362-bd07-11e5-b7ef-5453ed2e2b49.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?9bdfef2b"
  );
  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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:libproxy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:libproxy-gnome");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:libproxy-kde");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:libproxy-perl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:libproxy-webkit");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/10/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/01/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/01/19");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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:"libproxy>=0.4.0<0.4.6_1")) flag++;
if (pkg_test(save_report:TRUE, pkg:"libproxy-gnome>=0.4.0<0.4.6_2")) flag++;
if (pkg_test(save_report:TRUE, pkg:"libproxy-kde>=0.4.0<0.4.6_6")) flag++;
if (pkg_test(save_report:TRUE, pkg:"libproxy-perl>=0.4.0<0.4.6_3")) flag++;
if (pkg_test(save_report:TRUE, pkg:"libproxy-webkit>=0.4.0<0.4.6_4")) 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");
VendorProductVersionCPE
freebsdfreebsdlibproxyp-cpe:/a:freebsd:freebsd:libproxy
freebsdfreebsdlibproxy-gnomep-cpe:/a:freebsd:freebsd:libproxy-gnome
freebsdfreebsdlibproxy-kdep-cpe:/a:freebsd:freebsd:libproxy-kde
freebsdfreebsdlibproxy-perlp-cpe:/a:freebsd:freebsd:libproxy-perl
freebsdfreebsdlibproxy-webkitp-cpe:/a:freebsd:freebsd:libproxy-webkit
freebsdfreebsdcpe:/o:freebsd:freebsd

10 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.012 Low

EPSS

Percentile

84.9%