Vulnerabilities > CVE-2004-0224 - Remote Buffer Overflow vulnerability in Courier

#
# (C) Tenable Network Security, Inc.
#


include("compat.inc");


if(description)
{
 script_id(12102);
 script_version("1.15");
 script_cve_id("CVE-2004-0224");
 script_bugtraq_id(9845);
 
 script_name(english:"Courier < 0.45 Multiple Remote Overflows");
 script_summary(english:"Checks the version number"); 
 
 script_set_attribute(
   attribute:"synopsis",
   value:"The remote SMTP server has multiple buffer overflow vulnerabilities."
 );
 script_set_attribute(attribute:"description", value:
"According to its version number, the version of Courier MTA running
on the remote host has multiple buffer overflow vulnerabilities.  A
remote attacker could exploit this to crash the service, or possibly
execute arbitrary code." );
 script_set_attribute(
   attribute:"solution", 
   value:"Upgrade to Courier 0.45 or later."
 );
 script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
 script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
 script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
 script_set_attribute(attribute:"exploit_available", value:"false");
 script_set_attribute(attribute:"plugin_publication_date", value: "2004/03/14");
 script_set_attribute(attribute:"vuln_publication_date", value: "2004/03/11");
 script_cvs_date("Date: 2018/07/06 11:26:08");
 script_set_attribute(attribute:"plugin_type", value:"remote");
 script_end_attributes();

 script_category(ACT_GATHER_INFO);
 script_family(english:"SMTP problems");

 script_copyright(english:"This script is Copyright (C) 2004-2018 Tenable Network Security, Inc.");

 script_dependencie("find_service1.nasl", "smtpserver_detect.nasl");
 script_require_ports("Services/smtp", 25);

 exit(0);
}

#
# The script code starts here
#

include("smtp_func.inc");

port = get_kb_item("Services/smtp");
if(!port) port = 25;

banner = get_smtp_banner(port:port);
if(banner)
{
 if ( egrep(pattern:"220.*Courier 0\.([0-9]\.|[0-3][0-9]\.|4[0-4]\.)", string:banner) ) { security_hole(port); exit(0); }

}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 200403-06.
#
# The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

include("compat.inc");

if (description)
{
  script_id(14457);
  script_version("1.13");
  script_cvs_date("Date: 2019/08/02 13:32:41");

  script_cve_id("CVE-2004-0224");
  script_bugtraq_id(9845);
  script_xref(name:"GLSA", value:"200403-06");

  script_name(english:"GLSA-200403-06 : Multiple remote buffer overflow vulnerabilities in Courier");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-200403-06
(Multiple remote buffer overflow vulnerabilities in Courier)

    The vulnerabilities have been found in the 'SHIFT_JIS' converter in
    'shiftjis.c' and 'ISO2022JP' converter in 'so2022jp.c'. An attacker may
    supply Unicode characters that exceed BMP (Basic Multilingual Plane) range,
    causing an overflow.
  
Impact :

    An attacker without privileges may exploit this vulnerability remotely, allowing arbitrary code to be executed in order to gain unauthorized access.
  
Workaround :

    While a workaround is not currently known for this issue, all users are
    advised to upgrade to the latest version of the affected packages."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/200403-06"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All users should upgrade to current versions of the affected packages:
    # emerge sync
    # emerge -pv '>=net-mail/courier-imap-3.0.0'
    # emerge '>=net-mail/courier-imap-3.0.0'
    # ** Or; depending on your installation... **
    # emerge -pv '>=mail-mta/courier-0.45'
    # emerge '>=mail-mta/courier-0.45'"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:courier");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:courier-imap");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2004/03/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/08/30");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2004-2019 Tenable Network Security, Inc.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"mail-mta/courier", unaffected:make_list("ge 0.45"), vulnerable:make_list("lt 0.45"))) flag++;
if (qpkg_check(package:"net-mail/courier-imap", unaffected:make_list("ge 3.0.0"), vulnerable:make_list("lt 3.0.0"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "mail-mta/courier / net-mail/courier-imap");
}

#%NASL_MIN_LEVEL 80502
#
# (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(19044);
  script_version("1.19");
  script_cvs_date("Date: 2019/08/02 13:32:36");

  script_cve_id("CVE-2004-0224");
  script_bugtraq_id(9845);
  script_xref(name:"Secunia", value:"11087");

  script_name(english:"FreeBSD : Courier mail services: remotely exploitable buffer overflows (98bd69c3-834b-11d8-a41f-0020ed76ef5a)");
  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 Courier set of mail services use a common Unicode library. This
library contains buffer overflows in the converters for two popular
Japanese character encodings. These overflows may be remotely
exploitable, triggered by a maliciously formatted email message that
is later processed by one of the Courier mail services. From the
release notes for the corrected versions of the Courier set of mail
services :

iso2022jp.c: Converters became (upper-)compatible with ISO-2022-JP
(RFC1468 / JIS X 0208:1997 Annex 2) and ISO-2022-JP-1 (RFC2237).
Buffer overflow vulnerability (when Unicode character is out of BMP
range) has been closed. Convert error handling was implemented.

shiftjis.c: Broken SHIFT_JIS converters has been fixed and became
(upper-)compatible with Shifted Encoding Method (JIS X 0208:1997 Annex
1). Buffer overflow vulnerability (when Unicode character is out of
BMP range) has been closed. Convert error handling was implemented."
  );
  # http://cvs.sourceforge.net/viewcvs.py/courier/libs/unicode/iso2022jp.c?rev=1.10&view=markup
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?1a3ae431"
  );
  # http://cvs.sourceforge.net/viewcvs.py/courier/libs/unicode/shiftjis.c?rev=1.6&view=markup
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?6efec52b"
  );
  # https://vuxml.freebsd.org/freebsd/98bd69c3-834b-11d8-a41f-0020ed76ef5a.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?d834e6b5"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2004/02/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2004/03/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2005/07/13");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2005-2019 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:"courier<0.45")) flag++;
if (pkg_test(save_report:TRUE, pkg:"courier-imap<3.0,1")) flag++;
if (pkg_test(save_report:TRUE, pkg:"sqwebmail<4.0")) 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");