Amazon Linux AMI : tomcat6 (ALAS-2013-196)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2013-196.
#

include("compat.inc");

if (description)
{
  script_id(69754);
  script_version("1.5");
  script_cvs_date("Date: 2018/04/18 15:09:35");

  script_cve_id("CVE-2013-1976");
  script_xref(name:"ALAS", value:"2013-196");

  script_name(english:"Amazon Linux AMI : tomcat6 (ALAS-2013-196)");
  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:
"The (1) tomcat5, (2) tomcat6, and (3) tomcat7 init scripts, as used in
the RPM distribution of Tomcat for JBoss Enterprise Web Server 1.0.2
and 2.0.0, and Red Hat Enterprise Linux 5 and 6, allow local users to
change the ownership of arbitrary files via a symlink attack on (a)
tomcat5-initd.log, (b) tomcat6-initd.log, (c) catalina.out, or (d)
tomcat7-initd.log."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://alas.aws.amazon.com/ALAS-2013-196.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Run 'yum update tomcat6' to update your system."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat6-admin-webapps");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat6-docs-webapp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat6-el-2.1-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat6-javadoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat6-jsp-2.1-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat6-lib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat6-servlet-2.5-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat6-webapps");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/06/11");
  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:"tomcat6-6.0.37-1.1.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat6-admin-webapps-6.0.37-1.1.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat6-docs-webapp-6.0.37-1.1.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat6-el-2.1-api-6.0.37-1.1.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat6-javadoc-6.0.37-1.1.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat6-jsp-2.1-api-6.0.37-1.1.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat6-lib-6.0.37-1.1.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat6-servlet-2.5-api-6.0.37-1.1.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"tomcat6-webapps-6.0.37-1.1.amzn1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "tomcat6 / tomcat6-admin-webapps / tomcat6-docs-webapp / etc");
}