Amazon Linux AMI : GraphicsMagick (ALAS-2016-717)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2016-717.
#

include("compat.inc");

if (description)
{
  script_id(91769);
  script_version("2.3");
  script_cvs_date("Date: 2018/04/18 15:09:36");

  script_cve_id("CVE-2016-2317", "CVE-2016-2318", "CVE-2016-5118", "CVE-2016-5241");
  script_xref(name:"ALAS", value:"2016-717");

  script_name(english:"Amazon Linux AMI : GraphicsMagick (ALAS-2016-717)");
  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:
"It was discovered that GraphicsMagick did not properly sanitize
certain input before using it to invoke processes. A remote attacker
could create a specially crafted image that, when processed by an
application using GraphicsMagick or an unsuspecting user using the
GraphicsMagick utilities, would lead to arbitrary execution of shell
commands with the privileges of the user running the application.
(CVE-2016-5118)

Vulnerabilities in GraphicsMagick's SVG processing code were
discovered, resulting in memory corruption and, potentially, execution
of arbitrary code, a denial of service, or an application crash.
(CVE-2016-2317 , CVE-2016-2318 , CVE-2016-5118)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://alas.aws.amazon.com/ALAS-2016-717.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Run 'yum update GraphicsMagick' to update your system."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:GraphicsMagick");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:GraphicsMagick-c++");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:GraphicsMagick-c++-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:GraphicsMagick-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:GraphicsMagick-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:GraphicsMagick-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:GraphicsMagick-perl");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/06/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/06/23");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2018 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:"GraphicsMagick-1.3.24-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"GraphicsMagick-c++-1.3.24-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"GraphicsMagick-c++-devel-1.3.24-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"GraphicsMagick-debuginfo-1.3.24-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"GraphicsMagick-devel-1.3.24-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"GraphicsMagick-doc-1.3.24-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"GraphicsMagick-perl-1.3.24-1.8.amzn1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "GraphicsMagick / GraphicsMagick-c++ / GraphicsMagick-c++-devel / etc");
}