Oracle Linux 7 : tomcat (ELSA-2017-1809)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2017:1809 and 
# Oracle Linux Security Advisory ELSA-2017-1809 respectively.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(102031);
  script_version("3.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2017-5648", "CVE-2017-5664");
  script_xref(name:"RHSA", value:"2017:1809");

  script_name(english:"Oracle Linux 7 : tomcat (ELSA-2017-1809)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Oracle Linux host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"From Red Hat Security Advisory 2017:1809 :

An update for tomcat is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security
impact of Important. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

Apache Tomcat is a servlet container for the Java Servlet and
JavaServer Pages (JSP) technologies.

Security Fix(es) :

* A vulnerability was discovered in the error page mechanism in
Tomcat's DefaultServlet implementation. A crafted HTTP request could
cause undesired side effects, possibly including the removal or
replacement of the custom error page. (CVE-2017-5664)

* A vulnerability was discovered in Tomcat. When running an untrusted
application under a SecurityManager it was possible, under some
circumstances, for that application to retain references to the
request or response objects and thereby access and/or modify
information associated with another web application. (CVE-2017-5648)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2017-July/007063.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected tomcat packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:oracle:linux:tomcat");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:tomcat-admin-webapps");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:tomcat-docs-webapp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:tomcat-el-2.2-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:tomcat-javadoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:tomcat-jsp-2.2-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:tomcat-jsvc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:tomcat-lib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:tomcat-servlet-3.0-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:tomcat-webapps");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/04/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/07/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/07/28");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Oracle Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/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);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 7", "Oracle Linux " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) 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, "Oracle Linux", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);

flag = 0;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"tomcat-7.0.69-12.el7_3")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"tomcat-admin-webapps-7.0.69-12.el7_3")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"tomcat-docs-webapp-7.0.69-12.el7_3")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"tomcat-el-2.2-api-7.0.69-12.el7_3")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"tomcat-javadoc-7.0.69-12.el7_3")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"tomcat-jsp-2.2-api-7.0.69-12.el7_3")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"tomcat-jsvc-7.0.69-12.el7_3")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"tomcat-lib-7.0.69-12.el7_3")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"tomcat-servlet-3.0-api-7.0.69-12.el7_3")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"tomcat-webapps-7.0.69-12.el7_3")) 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, "tomcat / tomcat-admin-webapps / tomcat-docs-webapp / etc");
}