Amazon Linux AMI : tomcat7 / tomcat8 (ALAS-2016-736)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2016-736.
#

include("compat.inc");

if (description)
{
  script_id(93014);
  script_version("2.3");
  script_cvs_date("Date: 2018/04/18 15:09:36");

  script_cve_id("CVE-2016-3092");
  script_xref(name:"ALAS", value:"2016-736");

  script_name(english:"Amazon Linux AMI : tomcat7 / tomcat8 (ALAS-2016-736)");
  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:
"A denial of service vulnerability was identified in Commons FileUpload
that occurred when the length of the multipart boundary was just below
the size of the buffer (4096 bytes) used to read the uploaded file if
the boundary was the typical tens of bytes long."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://alas.aws.amazon.com/ALAS-2016-736.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Run 'yum update tomcat7' to update your system.

Run 'yum update tomcat8' to update your system."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat7");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat7-admin-webapps");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat7-docs-webapp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat7-el-2.2-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat7-javadoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat7-jsp-2.2-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat7-lib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat7-log4j");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat7-servlet-3.0-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat7-webapps");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat8-admin-webapps");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat8-docs-webapp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat8-el-3.0-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat8-javadoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat8-jsp-2.3-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat8-lib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat8-log4j");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat8-servlet-3.1-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat8-webapps");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/08/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/08/18");
  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:"tomcat7-7.0.70-1.18.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat7-admin-webapps-7.0.70-1.18.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat7-docs-webapp-7.0.70-1.18.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat7-el-2.2-api-7.0.70-1.18.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat7-javadoc-7.0.70-1.18.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat7-jsp-2.2-api-7.0.70-1.18.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat7-lib-7.0.70-1.18.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat7-log4j-7.0.70-1.18.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat7-servlet-3.0-api-7.0.70-1.18.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat7-webapps-7.0.70-1.18.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat8-8.0.36-1.62.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat8-admin-webapps-8.0.36-1.62.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat8-docs-webapp-8.0.36-1.62.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat8-el-3.0-api-8.0.36-1.62.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat8-javadoc-8.0.36-1.62.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat8-jsp-2.3-api-8.0.36-1.62.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat8-lib-8.0.36-1.62.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat8-log4j-8.0.36-1.62.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat8-servlet-3.1-api-8.0.36-1.62.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat8-webapps-8.0.36-1.62.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, "tomcat7 / tomcat7-admin-webapps / tomcat7-docs-webapp / etc");
}