Vulnerabilities > CVE-2005-2151 - Unspecified vulnerability in Double Precision Incorporated Courier Mail Server

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



include("compat.inc");

if (description) {
  script_id(18620);
  script_version("1.14");

  script_cve_id("CVE-2005-2151");
  script_bugtraq_id(14135);
 
  script_name(english:"Courier Mail Server < 0.50.1 DNS SPF Record Lookup Failure Memory Corruption DoS");

 script_set_attribute(attribute:"synopsis", value:
"The remote mail server is vulnerable to a denial of service attack." );
 script_set_attribute(attribute:"description", value:
"The remote host is running Courier Mail Server, an open source mail
server for Linux and Unix. 

According to its banner, the installed version of Courier is prone to
a remote denial of service vulnerability triggered when doing Sender
Policy Framework (SPF) data lookups.  To exploit this flaw, an
attacker would need to control a DNS server and return malicious SPF
records in response to queries from the affected application." );
 script_set_attribute(attribute:"solution", value:
"Upgrade to Courier version 0.50.1 or later." );
 script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:N/I:N/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_publication_date", value: "2005/07/06");
 script_set_attribute(attribute:"vuln_publication_date", value: "2005/07/02");
 script_cvs_date("Date: 2018/07/06 11:26:08");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_set_attribute(attribute:"cpe", value: "cpe:/a:double_precision_incorporated:courier_mail_server");
script_end_attributes();

  script_summary(english:"Checks version of Courier Mail Server");
  script_category(ACT_GATHER_INFO);
  script_family(english:"SMTP problems");
  script_copyright(english:"This script is Copyright (C) 2005-2018 Tenable Network Security, Inc.");
  script_dependencies("smtpserver_detect.nasl");
  script_require_ports("Services/smtp", 25);
  exit(0);
}


include("global_settings.inc");
include("misc_func.inc");
include("smtp_func.inc");


port = get_service(svc:"smtp", default: 25, exit_on_fail: 1);
if (get_kb_item('SMTP/'+port+'/broken')) exit(0);

# Check the version number in the banner -- versions < 0.50.1 are vulnerable.
banner = get_smtp_banner(port:port);
if (banner && banner =~ "Courier 0\.([0-4][0-9]\.|50\.0[^0-9]*)")
  security_note(port); 

#%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-174-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(20584);
  script_version("1.14");
  script_cvs_date("Date: 2019/08/02 13:33:00");

  script_cve_id("CVE-2005-2151");
  script_xref(name:"USN", value:"174-1");

  script_name(english:"Ubuntu 5.04 : courier vulnerability (USN-174-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"A Denial of Service vulnerability has been discovered in the Courier
mail server. Due to a flawed status code check, failed DNS (domain
name service) queries for SPF (sender policy framework) were not
handled properly and could lead to memory corruption. A malicious DNS
server could exploit this to crash the Courier server.

However, SPF is not enabled by default, so you are only vulnerable if
you explicitly enabled it.

The Ubuntu 4.10 version of courier is not affected by this.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  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:P/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-authdaemon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-authmysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-authpostgresql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-faxmail");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-imap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-imap-ssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-maildrop");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-mlm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-mta");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-mta-ssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-pcp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-pop");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-pop-ssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-ssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-webadmin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:sqwebmail");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:5.04");

  script_set_attribute(attribute:"patch_publication_date", value:"2005/08/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/01/15");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2005-2019 Canonical, Inc. / NASL script (C) 2006-2016 Tenable Network Security, Inc.");
  script_family(english:"Ubuntu Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! ereg(pattern:"^(5\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 5.04", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"5.04", pkgname:"courier-authdaemon", pkgver:"0.47-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-authmysql", pkgver:"0.47-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-authpostgresql", pkgver:"0.47-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-base", pkgver:"0.47-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-doc", pkgver:"0.47-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-faxmail", pkgver:"0.47-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-imap", pkgver:"3.0.8-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-imap-ssl", pkgver:"3.0.8-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-ldap", pkgver:"0.47-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-maildrop", pkgver:"0.47-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-mlm", pkgver:"0.47-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-mta", pkgver:"0.47-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-mta-ssl", pkgver:"0.47-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-pcp", pkgver:"0.47-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-pop", pkgver:"0.47-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-pop-ssl", pkgver:"0.47-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-ssl", pkgver:"0.47-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-webadmin", pkgver:"0.47-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"sqwebmail", pkgver:"0.47-3ubuntu1.1")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "courier-authdaemon / courier-authmysql / courier-authpostgresql / etc");
}

#%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-784. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(19527);
  script_version("1.17");
  script_cvs_date("Date: 2019/08/02 13:32:18");

  script_cve_id("CVE-2005-2151");
  script_xref(name:"DSA", value:"784");

  script_name(english:"Debian DSA-784-1 : courier - programming error");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"A problem has been discovered in the Courier Mail Server. DNS failures
were not handled properly when looking up Sender Policy Framework
(SPF) records, which could allow attackers to cause memory corruption.
The default configuration on Debian has SPF checking disabled, so most
machines are not vulnerable. This is explained in the 'courier'
manpage, section SENDER POLICY FRAMEWORK KEYWORDS."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=320290"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2005/dsa-784"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the courier-mta package.

The old stable distribution (woody) is not affected by this problem.

For the stable distribution (sarge) this problem has been fixed in
version 0.47-4sarge1."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:courier");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2005/08/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2005/08/30");
  script_set_attribute(attribute:"vuln_publication_date", value:"2005/07/02");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2005-2019 Tenable Network Security, Inc.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"3.1", prefix:"courier-authdaemon", reference:"0.47-4sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"courier-authmysql", reference:"0.47-4sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"courier-authpostgresql", reference:"0.47-4sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"courier-base", reference:"0.47-4sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"courier-doc", reference:"0.47-4sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"courier-faxmail", reference:"0.47-4sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"courier-imap", reference:"3.0.8-4sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"courier-imap-ssl", reference:"3.0.8-4sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"courier-ldap", reference:"0.47-4sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"courier-maildrop", reference:"0.47-4sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"courier-mlm", reference:"0.47-4sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"courier-mta", reference:"0.47-4sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"courier-mta-ssl", reference:"0.47-4sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"courier-pcp", reference:"0.47-4sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"courier-pop", reference:"0.47-4sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"courier-pop-ssl", reference:"0.47-4sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"courier-ssl", reference:"0.47-4sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"courier-webadmin", reference:"0.47-4sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"sqwebmail", reference:"0.47-4sarge1")) flag++;

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