CentOS 7 : httpd (CESA-2019:2343)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2019:2343 and 
# CentOS Errata and Security Advisory 2019:2343 respectively.
#

include('compat.inc');

if (description)
{
  script_id(129017);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/05");

  script_cve_id("CVE-2019-0217", "CVE-2019-0220");
  script_xref(name:"RHSA", value:"2019:2343");
  script_xref(name:"CEA-ID", value:"CEA-2019-0203");

  script_name(english:"CentOS 7 : httpd (CESA-2019:2343)");

  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 httpd is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security
impact of Moderate. 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 httpd packages provide the Apache HTTP Server, a powerful,
efficient, and extensible web server.

Security Fix(es) :

* httpd: mod_auth_digest: access control bypass due to race condition
(CVE-2019-0217)

* httpd: URL normalization inconsistency (CVE-2019-0220)

For more details about the security issue(s), including the impact, a
CVSS score, acknowledgments, and other related information, refer to
the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.7 Release Notes linked from the References section.");
  # https://lists.centos.org/pipermail/centos-announce/2019-September/023440.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?63f989d8");
  script_set_attribute(attribute:"solution", value:
"Update the affected httpd packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:P/I:P/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:H/PR:L/UI:N/S:U/C:H/I:H/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-2019-0217");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/04/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/09/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/09/19");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:httpd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:httpd-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:httpd-manual");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:httpd-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mod_ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mod_proxy_html");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mod_session");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mod_ssl");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CentOS Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  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:"httpd-2.4.6-90.el7.centos")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"httpd-devel-2.4.6-90.el7.centos")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"httpd-manual-2.4.6-90.el7.centos")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"httpd-tools-2.4.6-90.el7.centos")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"mod_ldap-2.4.6-90.el7.centos")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"mod_proxy_html-2.4.6-90.el7.centos")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"mod_session-2.4.6-90.el7.centos")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"mod_ssl-2.4.6-90.el7.centos")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "httpd / httpd-devel / httpd-manual / httpd-tools / mod_ldap / etc");
}