Ubuntu 12.04 LTS / 12.10 / 13.04 / 13.10 : memcached vulnerabilities (USN-2080-1)

#%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-2080-1. 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(71938);
  script_version("1.13");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2011-4971", "CVE-2013-0179", "CVE-2013-7239");
  script_bugtraq_id(59567, 64559, 64978);
  script_xref(name:"USN", value:"2080-1");

  script_name(english:"Ubuntu 12.04 LTS / 12.10 / 13.04 / 13.10 : memcached vulnerabilities (USN-2080-1)");
  script_summary(english:"Checks dpkg output for updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Ubuntu host is missing a security-related patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Stefan Bucur discovered that Memcached incorrectly handled certain
large body lengths. A remote attacker could use this issue to cause
Memcached to crash, resulting in a denial of service. (CVE-2011-4971)

Jeremy Sowden discovered that Memcached incorrectly handled logging
certain details when the -vv option was used. An attacker could use
this issue to cause Memcached to crash, resulting in a denial of
service. (CVE-2013-0179)

It was discovered that Memcached incorrectly handled SASL
authentication. A remote attacker could use this issue to bypass SASL
authentication completely. This issue only affected Ubuntu 12.10,
Ubuntu 13.04 and Ubuntu 13.10. (CVE-2013-7239).

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:"see_also",
    value:"https://usn.ubuntu.com/2080-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected memcached 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: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:canonical:ubuntu_linux:memcached");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:12.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:12.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:13.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:13.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/12/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/01/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/01/14");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2014-2020 Canonical, Inc. / NASL script (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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 (! preg(pattern:"^(12\.04|12\.10|13\.04|13\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 12.04 / 12.10 / 13.04 / 13.10", "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:"12.04", pkgname:"memcached", pkgver:"1.4.13-0ubuntu2.1")) flag++;
if (ubuntu_check(osver:"12.10", pkgname:"memcached", pkgver:"1.4.14-0ubuntu1.12.10.1")) flag++;
if (ubuntu_check(osver:"13.04", pkgname:"memcached", pkgver:"1.4.14-0ubuntu1.13.04.1")) flag++;
if (ubuntu_check(osver:"13.10", pkgname:"memcached", pkgver:"1.4.14-0ubuntu4.1")) 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, "memcached");
}