FreeBSD : haproxy -- buffer overflow (617959ce-a5f6-11e1-a284-0023ae8e59f0)

2012-05-29T00:00:00
ID FREEBSD_PKG_617959CEA5F611E1A2840023AE8E59F0.NASL
Type nessus
Reporter Tenable
Modified 2013-06-21T00:00:00

Description

HAProxy reports :

A flaw was reported in HAProxy where, due to a boundary error when copying data into the trash buffer, an external attacker could cause a buffer overflow. Exploiting this flaw could lead to the execution of arbitrary code, however it requires non-default settings for the global.tune.bufsize configuration option (must be set to a value greater than the default), and also that header rewriting is enabled (via, for example, the regrep or rsprep directives). This flaw is reported against 1.4.20, prior versions may also be affected.

                                        
                                            #
# (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(59282);
  script_version("$Revision: 1.5 $");
  script_cvs_date("$Date: 2013/06/21 23:57:16 $");

  script_cve_id("CVE-2012-2942");
  script_xref(name:"Secunia", value:"49261");

  script_name(english:"FreeBSD : haproxy -- buffer overflow (617959ce-a5f6-11e1-a284-0023ae8e59f0)");
  script_summary(english:"Checks for updated package in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote FreeBSD host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"HAProxy reports :

A flaw was reported in HAProxy where, due to a boundary error when
copying data into the trash buffer, an external attacker could cause a
buffer overflow. Exploiting this flaw could lead to the execution of
arbitrary code, however it requires non-default settings for the
global.tune.bufsize configuration option (must be set to a value
greater than the default), and also that header rewriting is enabled
(via, for example, the regrep or rsprep directives). This flaw is
reported against 1.4.20, prior versions may also be affected."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://haproxy.1wt.eu/download/1.4/src/CHANGELOG"
  );
  # http://haproxy.1wt.eu/git?p=haproxy-1.4.git;a=commit;h=30297cb17147a8d339eb160226bcc08c91d9530b
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?a431512a"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://haproxy.1wt.eu/news.html"
  );
  # http://www.freebsd.org/ports/portaudit/617959ce-a5f6-11e1-a284-0023ae8e59f0.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?193e1115"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:haproxy");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/05/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/05/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/05/29");
  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:"haproxy<1.4.21")) flag++;

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