CentOS 5 / 6 : samba / samba3x (CESA-2012:0533)

#%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-2012:0533 and 
# CentOS Errata and Security Advisory 2012:0533 respectively.
#

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

if (description)
{
  script_id(67088);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2012-2111");
  script_xref(name:"RHSA", value:"2012:0533");

  script_name(english:"CentOS 5 / 6 : samba / samba3x (CESA-2012:0533)");
  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 samba3x and samba packages that fix one security issue are now
available for Red Hat Enterprise Linux 5 and 6 respectively.

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 flaw was found in the way Samba handled certain Local Security
Authority (LSA) Remote Procedure Calls (RPC). An authenticated user
could use this flaw to issue an RPC call that would modify the
privileges database on the Samba server, allowing them to steal the
ownership of files and directories that are being shared by the Samba
server, and create, delete, and modify user accounts, as well as other
Samba server administration tasks. (CVE-2012-2111)

Red Hat would like to thank the Samba project for reporting this
issue. Upstream acknowledges Ivano Cristofolini as the original
reporter.

Users of Samba are advised to upgrade to these updated packages, which
contain a backported patch to resolve this issue. After installing
this update, the smb service will be restarted automatically."
  );
  # https://lists.centos.org/pipermail/centos-announce/2012-April/018606.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?723fa6fc"
  );
  # https://lists.centos.org/pipermail/centos-announce/2012-April/018608.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?78e1b6b9"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected samba and / or samba3x packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2012-2111");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libsmbclient");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libsmbclient-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba-domainjoin-gui");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba-swat");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba-winbind");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba-winbind-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba-winbind-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba-winbind-krb5-locator");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba3x");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba3x-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba3x-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba3x-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba3x-domainjoin-gui");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba3x-swat");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba3x-winbind");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:samba3x-winbind-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:6");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/04/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/04/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/06/29");
  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:"^(5|6)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 5.x / 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-5", reference:"samba3x-3.5.10-0.109.el5_8")) flag++;
if (rpm_check(release:"CentOS-5", reference:"samba3x-client-3.5.10-0.109.el5_8")) flag++;
if (rpm_check(release:"CentOS-5", reference:"samba3x-common-3.5.10-0.109.el5_8")) flag++;
if (rpm_check(release:"CentOS-5", reference:"samba3x-doc-3.5.10-0.109.el5_8")) flag++;
if (rpm_check(release:"CentOS-5", reference:"samba3x-domainjoin-gui-3.5.10-0.109.el5_8")) flag++;
if (rpm_check(release:"CentOS-5", reference:"samba3x-swat-3.5.10-0.109.el5_8")) flag++;
if (rpm_check(release:"CentOS-5", reference:"samba3x-winbind-3.5.10-0.109.el5_8")) flag++;
if (rpm_check(release:"CentOS-5", reference:"samba3x-winbind-devel-3.5.10-0.109.el5_8")) flag++;

if (rpm_check(release:"CentOS-6", reference:"libsmbclient-3.5.10-116.el6_2")) flag++;
if (rpm_check(release:"CentOS-6", reference:"libsmbclient-devel-3.5.10-116.el6_2")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba-3.5.10-116.el6_2")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba-client-3.5.10-116.el6_2")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba-common-3.5.10-116.el6_2")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba-doc-3.5.10-116.el6_2")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba-domainjoin-gui-3.5.10-116.el6_2")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba-swat-3.5.10-116.el6_2")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba-winbind-3.5.10-116.el6_2")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba-winbind-clients-3.5.10-116.el6_2")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba-winbind-devel-3.5.10-116.el6_2")) flag++;
if (rpm_check(release:"CentOS-6", reference:"samba-winbind-krb5-locator-3.5.10-116.el6_2")) 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, "libsmbclient / libsmbclient-devel / samba / samba-client / etc");
}