FreeBSD : ruby -- DoS vulnerability in WEBrick (f7ba20aa-6b5a-11dd-9d79-001fc61c2a55)

2008-08-17T00:00:00
ID FREEBSD_PKG_F7BA20AA6B5A11DD9D79001FC61C2A55.NASL
Type nessus
Reporter Tenable
Modified 2016-12-08T00:00:00

Description

The official ruby site reports :

WEBrick::HTTP::DefaultFileHandler is faulty of exponential time taking requests due to a backtracking regular expression in WEBrick::HTTPUtils.split_header_value.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2016 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(33907);
  script_version("$Revision: 1.16 $");
  script_cvs_date("$Date: 2016/12/08 20:42:12 $");

  script_cve_id("CVE-2008-3655", "CVE-2008-3656", "CVE-2008-3905");

  script_name(english:"FreeBSD : ruby -- DoS vulnerability in WEBrick (f7ba20aa-6b5a-11dd-9d79-001fc61c2a55)");
  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:
"The official ruby site reports :

WEBrick::HTTP::DefaultFileHandler is faulty of exponential time taking
requests due to a backtracking regular expression in
WEBrick::HTTPUtils.split_header_value."
  );
  # http://www.ruby-lang.org/en/news/2008/08/08/multiple-vulnerabilities-in-ruby/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?1ff7ab4e"
  );
  # http://www.freebsd.org/ports/portaudit/f7ba20aa-6b5a-11dd-9d79-001fc61c2a55.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?0dde84ca"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_cwe_id(264, 287, 399);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:ruby");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:ruby+oniguruma");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:ruby+pthreads");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:ruby+pthreads+oniguruma");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2008/08/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2008/08/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/08/17");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2016 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:"ruby>=1.8.*,1<1.8.6.111_5,1")) flag++;
if (pkg_test(save_report:TRUE, pkg:"ruby>=1.9.*,1<1.9.1.0,1")) flag++;
if (pkg_test(save_report:TRUE, pkg:"ruby+pthreads>=1.8.*,1<1.8.6.111_5,1")) flag++;
if (pkg_test(save_report:TRUE, pkg:"ruby+pthreads>=1.9.*,1<1.9.1.0,1")) flag++;
if (pkg_test(save_report:TRUE, pkg:"ruby+pthreads+oniguruma>=1.8.*,1<1.8.6.111_5,1")) flag++;
if (pkg_test(save_report:TRUE, pkg:"ruby+pthreads+oniguruma>=1.9.*,1<1.9.1.0,1")) flag++;
if (pkg_test(save_report:TRUE, pkg:"ruby+oniguruma>=1.8.*,1<1.8.6.111_5,1")) flag++;
if (pkg_test(save_report:TRUE, pkg:"ruby+oniguruma>=1.9.*,1<1.9.1.0,1")) 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");