CentOS 6 : samba4 (CESA-2013:1805)

#%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-2013:1805 and 
# CentOS Errata and Security Advisory 2013:1805 respectively.
#

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

if (description)
{
  script_id(71273);
  script_version("1.13");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2013-4408");
  script_bugtraq_id(64191);
  script_xref(name:"RHSA", value:"2013:1805");

  script_name(english:"CentOS 6 : samba4 (CESA-2013:1805)");
  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:
"Updated samba4 packages that fix one security issue are now available
for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having
important security impact. A Common Vulnerability Scoring System
(CVSS) base score, which gives a detailed severity rating, is
available from the CVE link in the References section.

Samba is an open source implementation of the Server Message Block
(SMB) or Common Internet File System (CIFS) protocol, which allows
PC-compatible machines to share files, printers, and other
information.

A heap-based buffer overflow flaw was found in the DCE-RPC client code
in Samba. A specially crafted DCE-RPC packet could cause various Samba
programs to crash or, possibly, execute arbitrary code when parsed. A
malicious or compromised Active Directory Domain Controller could use
this flaw to compromise the winbindd daemon running with root
privileges. (CVE-2013-4408)

Red Hat would like to thank the Samba project for reporting this
issue. Upstream acknowledges Stefan Metzmacher and Michael Adam of
SerNet as the original reporters of this issue.

All users of Samba are advised to upgrade to these updated packages,
which contain a backported patch to correct this issue. After
installing this update, the smb service will be restarted
automatically."
  );
  # https://lists.centos.org/pipermail/centos-announce/2013-December/020055.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?e2149523"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected samba4 packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2013-4408");
  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:samba4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba4-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba4-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba4-dc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba4-dc-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba4-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba4-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba4-pidl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba4-python");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba4-swat");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba4-test");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba4-winbind");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba4-winbind-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba4-winbind-krb5-locator");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:6");

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/12/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/12/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/12/10");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2021 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:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 6.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-6", reference:"samba4-4.0.0-60.el6_5.rc4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba4-client-4.0.0-60.el6_5.rc4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba4-common-4.0.0-60.el6_5.rc4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba4-dc-4.0.0-60.el6_5.rc4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba4-dc-libs-4.0.0-60.el6_5.rc4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba4-devel-4.0.0-60.el6_5.rc4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba4-libs-4.0.0-60.el6_5.rc4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba4-pidl-4.0.0-60.el6_5.rc4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba4-python-4.0.0-60.el6_5.rc4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba4-swat-4.0.0-60.el6_5.rc4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba4-test-4.0.0-60.el6_5.rc4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba4-winbind-4.0.0-60.el6_5.rc4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba4-winbind-clients-4.0.0-60.el6_5.rc4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba4-winbind-krb5-locator-4.0.0-60.el6_5.rc4")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    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, "samba4 / samba4-client / samba4-common / samba4-dc / samba4-dc-libs / etc");
}