RHEL 5 / 6 : sudo (RHSA-2012:1081)

#%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-2012:1081. The text 
# itself is copyright (C) Red Hat, Inc.
#

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

if (description)
{
  script_id(59982);
  script_version("1.20");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2012-2337");
  script_bugtraq_id(53569);
  script_xref(name:"RHSA", value:"2012:1081");

  script_name(english:"RHEL 5 / 6 : sudo (RHSA-2012:1081)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An updated sudo package that fixes one security issue is now available
for Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having
moderate 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.

The sudo (superuser do) utility allows system administrators to give
certain users the ability to run commands as root.

A flaw was found in the way the network matching code in sudo handled
multiple IP networks listed in user specification configuration
directives. A user, who is authorized to run commands with sudo on
specific hosts, could use this flaw to bypass intended restrictions
and run those commands on hosts not matched by any of the network
specifications. (CVE-2012-2337)

All users of sudo are advised to upgrade to this updated package,
which contains a backported patch to correct this issue."
  );
  # http://www.sudo.ws/sudo/alerts/netmask.html
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.sudo.ws/sudo/alerts/netmask.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2012:1081"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2012-2337"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected sudo and / or sudo-debuginfo packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/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:"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:redhat:enterprise_linux:sudo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sudo-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6.3");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/05/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/07/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/07/17");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^(5|6)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 5.x / 6.x", "Red Hat " + 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$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2012:1081";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL5", cpu:"i386", reference:"sudo-1.7.2p1-14.el5_8")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"sudo-1.7.2p1-14.el5_8")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"sudo-1.7.2p1-14.el5_8")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"i386", reference:"sudo-debuginfo-1.7.2p1-14.el5_8")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"sudo-debuginfo-1.7.2p1-14.el5_8")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"sudo-debuginfo-1.7.2p1-14.el5_8")) flag++;


  if (rpm_check(release:"RHEL6", cpu:"i686", reference:"sudo-1.7.4p5-12.el6_3")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"sudo-1.7.4p5-12.el6_3")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"sudo-1.7.4p5-12.el6_3")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"i686", reference:"sudo-debuginfo-1.7.4p5-12.el6_3")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"sudo-debuginfo-1.7.4p5-12.el6_3")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"sudo-debuginfo-1.7.4p5-12.el6_3")) flag++;


  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "sudo / sudo-debuginfo");
  }
}