Amazon Linux AMI : puppet (ALAS-2012-75)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2012-75.
#

include("compat.inc");

if (description)
{
  script_id(69682);
  script_version("1.5");
  script_cvs_date("Date: 2018/04/18 15:09:34");

  script_cve_id("CVE-2012-1986");
  script_xref(name:"ALAS", value:"2012-75");

  script_name(english:"Amazon Linux AMI : puppet (ALAS-2012-75)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Amazon Linux AMI host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Puppet 2.6.x before 2.6.15 and 2.7.x before 2.7.13, and Puppet
Enterprise (PE) Users 1.0, 1.1, 1.2.x, 2.0.x, and 2.5.x before 2.5.1
allows remote authenticated users with an authorized SSL key and
certain permissions on the puppet master to read arbitrary files via a
symlink attack in conjunction with a crafted REST request for a file
in a filebucket."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://alas.aws.amazon.com/ALAS-2012-75.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Run 'yum update puppet' to update your system."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:S/C:P/I:N/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:puppet");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:puppet-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:puppet-server");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2012/05/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/09/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2018 Tenable Network Security, Inc.");
  script_family(english:"Amazon Linux Local Security Checks");

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

  exit(0);
}


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


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

release = get_kb_item("Host/AmazonLinux/release");
if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "A")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux AMI", "Amazon Linux " + os_ver);
}

if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (rpm_check(release:"ALA", reference:"puppet-2.6.16-1.6.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"puppet-debuginfo-2.6.16-1.6.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"puppet-server-2.6.16-1.6.amzn1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_note(port:0, extra:rpm_report_get());
  else security_note(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "puppet / puppet-debuginfo / puppet-server");
}