Ubuntu 4.10 / 5.04 / 5.10 : cyrus-sasl2 vulnerability (USN-272-1)

#%NASL_MIN_LEVEL 70300

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-272-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(21291);
  script_version("1.15");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2006-1721");
  script_xref(name:"USN", value:"272-1");

  script_name(english:"Ubuntu 4.10 / 5.04 / 5.10 : cyrus-sasl2 vulnerability (USN-272-1)");
  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 SASL
authentication library when using the DIGEST-MD5 plugin. By sending a
specially crafted realm name, a malicious SASL server could exploit
this to crash the application that uses SASL.

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:H/Au:N/C:N/I:N/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libsasl2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libsasl2-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libsasl2-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libsasl2-modules-gssapi-heimdal");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libsasl2-modules-kerberos-heimdal");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libsasl2-modules-sql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:sasl2-bin");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:4.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:5.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:5.10");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/04/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/04/26");
  script_set_attribute(attribute:"vuln_publication_date", value:"2006/04/07");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2006-2019 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:"^(4\.10|5\.04|5\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 4.10 / 5.04 / 5.10", "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:"4.10", pkgname:"libsasl2", pkgver:"2.1.19-1.3ubuntu0.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"libsasl2-dev", pkgver:"2.1.19-1.3ubuntu0.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"libsasl2-modules", pkgver:"2.1.19-1.3ubuntu0.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"libsasl2-modules-gssapi-heimdal", pkgver:"2.1.19-1.3ubuntu0.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"libsasl2-modules-kerberos-heimdal", pkgver:"2.1.19-1.3ubuntu0.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"libsasl2-modules-sql", pkgver:"2.1.19-1.3ubuntu0.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"sasl2-bin", pkgver:"2.1.19-1.3ubuntu0.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"libsasl2", pkgver:"2.1.19-1.5ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"libsasl2-dev", pkgver:"2.1.19-1.5ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"libsasl2-modules", pkgver:"2.1.19-1.5ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"libsasl2-modules-gssapi-heimdal", pkgver:"2.1.19-1.5ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"libsasl2-modules-kerberos-heimdal", pkgver:"2.1.19-1.5ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"libsasl2-modules-sql", pkgver:"2.1.19-1.5ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"sasl2-bin", pkgver:"2.1.19-1.5ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"libsasl2", pkgver:"2.1.19-1.5ubuntu4.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"libsasl2-dev", pkgver:"2.1.19-1.5ubuntu4.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"libsasl2-modules", pkgver:"2.1.19-1.5ubuntu4.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"libsasl2-modules-gssapi-heimdal", pkgver:"2.1.19-1.5ubuntu4.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"libsasl2-modules-kerberos-heimdal", pkgver:"2.1.19-1.5ubuntu4.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"libsasl2-modules-sql", pkgver:"2.1.19-1.5ubuntu4.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"sasl2-bin", pkgver:"2.1.19-1.5ubuntu4.2")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_NOTE,
    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, "libsasl2 / libsasl2-dev / libsasl2-modules / etc");
}