FreeBSD : Apache 2 mod_ssl denial-of-service (492f8896-70fa-11d8-873f-0020ed76ef5a)

2009-04-23T00:00:00
ID FREEBSD_PKG_492F889670FA11D8873F0020ED76EF5A.NASL
Type nessus
Reporter Tenable
Modified 2018-11-21T00:00:00

Description

Joe Orton reports a memory leak in Apache 2's mod_ssl. A remote attacker may issue HTTP requests on an HTTPS port, causing an error. Due to a bug in processing this condition, memory associated with the connection is not freed. Repeated requests can result in consuming all available memory resources, probably resulting in termination of the Apache process.

                                        
                                            #
# (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("compat.inc");

if (description)
{
  script_id(36300);
  script_version("1.14");
  script_cvs_date("Date: 2018/11/21 10:46:30");

  script_cve_id("CVE-2004-0113");
  script_bugtraq_id(9826);

  script_name(english:"FreeBSD : Apache 2 mod_ssl denial-of-service (492f8896-70fa-11d8-873f-0020ed76ef5a)");
  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:
"Joe Orton reports a memory leak in Apache 2's mod_ssl. A remote
attacker may issue HTTP requests on an HTTPS port, causing an error.
Due to a bug in processing this condition, memory associated with the
connection is not freed. Repeated requests can result in consuming all
available memory resources, probably resulting in termination of the
Apache process."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.apacheweek.com/features/security-20"
  );
  # http://cvs.apache.org/viewcvs.cgi/httpd-2.0/modules/ssl/ssl_engine_io.c?r1=1.100.2.11&r2=1.100.2.12
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?ebaa4b21"
  );
  # http://marc.theaimsgroup.com/?l=apache-cvs&m=107869699329638
  script_set_attribute(
    attribute:"see_also",
    value:"https://marc.info/?l=apache-cvs&m=107869699329638"
  );
  # https://vuxml.freebsd.org/freebsd/492f8896-70fa-11d8-873f-0020ed76ef5a.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?77e4f199"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
  script_set_attribute(attribute:"exploit_available", value:"true");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2004/02/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2004/03/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/04/23");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2009-2018 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:"apache>=2.0<=2.0.48_3")) 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");