CentOS 7 : ipsilon (CESA-2016:2809)

#%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-2016:2809 and 
# CentOS Errata and Security Advisory 2016:2809 respectively.
#

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

if (description)
{
  script_id(95355);
  script_version("3.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2016-8638");
  script_xref(name:"RHSA", value:"2016:2809");

  script_name(english:"CentOS 7 : ipsilon (CESA-2016:2809)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote CentOS host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An update for ipsilon 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.

The ipsilon packages provide the Ipsilon identity provider service for
federated single sign-on (SSO). Ipsilon links authentication providers
and applications or utilities to allow for SSO. It includes a server
and utilities to configure Apache-based service providers.

Security Fix(es) :

* A vulnerability was found in ipsilon in the SAML2 provider's
handling of sessions. An attacker able to hit the logout URL could
determine what service providers other users are logged in to and
terminate their sessions. (CVE-2016-8638)

This issue was discovered by Patrick Uiterwijk (Red Hat) and Howard
Johnson."
  );
  # https://lists.centos.org/pipermail/centos-cr-announce/2016-November/003677.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?9053d703"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected ipsilon packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P");
  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:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-8638");
  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:centos:centos:ipsilon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ipsilon-authform");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ipsilon-authgssapi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ipsilon-authldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ipsilon-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ipsilon-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ipsilon-filesystem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ipsilon-infosssd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ipsilon-persona");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ipsilon-saml2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ipsilon-saml2-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ipsilon-tools-ipa");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/07/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/11/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/11/28");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"CentOS Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/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/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 7.x", "CentOS " + os_ver);

if (!get_kb_item("Host/CentOS/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, "CentOS", cpu);


flag = 0;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"ipsilon-1.0.0-13.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"ipsilon-authform-1.0.0-13.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"ipsilon-authgssapi-1.0.0-13.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"ipsilon-authldap-1.0.0-13.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"ipsilon-base-1.0.0-13.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"ipsilon-client-1.0.0-13.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"ipsilon-filesystem-1.0.0-13.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"ipsilon-infosssd-1.0.0-13.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"ipsilon-persona-1.0.0-13.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"ipsilon-saml2-1.0.0-13.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"ipsilon-saml2-base-1.0.0-13.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"ipsilon-tools-ipa-1.0.0-13.el7_3")) flag++;


if (flag)
{
  cr_plugin_caveat = '\n' +
    'NOTE: The security advisory associated with this vulnerability has a\n' +
    'fixed package version that may only be available in the continuous\n' +
    'release (CR) repository for CentOS, until it is present in the next\n' +
    'point release of CentOS.\n\n' +

    'If an equal or higher package level does not exist in the baseline\n' +
    'repository for your major version of CentOS, then updates from the CR\n' +
    'repository will need to be applied in order to address the\n' +
    'vulnerability.\n';
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get() + cr_plugin_caveat
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ipsilon / ipsilon-authform / ipsilon-authgssapi / ipsilon-authldap / etc");
}