RHEL 3 / 4 / 5 : net-snmp (RHSA-2008:0529)

2008-06-12T00:00:00
ID REDHAT-RHSA-2008-0529.NASL
Type nessus
Reporter Tenable
Modified 2017-01-03T00:00:00

Description

Updated net-snmp packages that fix a security issue are now available for Red Hat Enterprise Linux 3, 4, and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The Simple Network Management Protocol (SNMP) is a protocol used for network management.

A flaw was found in the way Net-SNMP checked an SNMPv3 packet's Keyed-Hash Message Authentication Code (HMAC). An attacker could use this flaw to spoof an authenticated SNMPv3 packet. (CVE-2008-0960)

A buffer overflow was found in the Perl bindings for Net-SNMP. This could be exploited if an attacker could convince an application using the Net-SNMP Perl module to connect to a malicious SNMP agent. (CVE-2008-2292)

All users of net-snmp should upgrade to these updated packages, which contain backported patches to resolve these issues.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2008:0529. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(33157);
  script_version ("$Revision: 1.35 $");
  script_cvs_date("$Date: 2017/01/03 17:16:33 $");

  script_cve_id("CVE-2008-0960", "CVE-2008-2292");
  script_bugtraq_id(29212, 29623);
  script_xref(name:"RHSA", value:"2008:0529");

  script_name(english:"RHEL 3 / 4 / 5 : net-snmp (RHSA-2008:0529)");
  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:
"Updated net-snmp packages that fix a security issue are now available
for Red Hat Enterprise Linux 3, 4, and 5.

This update has been rated as having moderate security impact by the
Red Hat Security Response Team.

The Simple Network Management Protocol (SNMP) is a protocol used for
network management.

A flaw was found in the way Net-SNMP checked an SNMPv3 packet's
Keyed-Hash Message Authentication Code (HMAC). An attacker could use
this flaw to spoof an authenticated SNMPv3 packet. (CVE-2008-0960)

A buffer overflow was found in the Perl bindings for Net-SNMP. This
could be exploited if an attacker could convince an application using
the Net-SNMP Perl module to connect to a malicious SNMP agent.
(CVE-2008-2292)

All users of net-snmp should upgrade to these updated packages, which
contain backported patches to resolve these issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.redhat.com/security/data/cve/CVE-2008-0960.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.redhat.com/security/data/cve/CVE-2008-2292.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://rhn.redhat.com/errata/RHSA-2008-0529.html"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:ND/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'D2ExploitPack');
  script_cwe_id(119, 287);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:net-snmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:net-snmp-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:net-snmp-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:net-snmp-perl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:net-snmp-utils");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:3");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:4");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:4.6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5.2");

  script_set_attribute(attribute:"patch_publication_date", value:"2008/06/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/06/12");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2017 Tenable Network Security, Inc.");
  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 = eregmatch(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 (! ereg(pattern:"^(3|4|5)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 3.x / 4.x / 5.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-2008:0529";
  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:"RHEL3", reference:"net-snmp-5.0.9-2.30E.24")) flag++;

  if (rpm_check(release:"RHEL3", reference:"net-snmp-devel-5.0.9-2.30E.24")) flag++;

  if (rpm_check(release:"RHEL3", reference:"net-snmp-libs-5.0.9-2.30E.24")) flag++;

  if (rpm_check(release:"RHEL3", reference:"net-snmp-perl-5.0.9-2.30E.24")) flag++;

  if (rpm_check(release:"RHEL3", reference:"net-snmp-utils-5.0.9-2.30E.24")) flag++;


  if (rpm_check(release:"RHEL4", reference:"net-snmp-5.1.2-11.el4_6.11.3")) flag++;

  if (rpm_check(release:"RHEL4", reference:"net-snmp-devel-5.1.2-11.el4_6.11.3")) flag++;

  if (rpm_check(release:"RHEL4", reference:"net-snmp-libs-5.1.2-11.el4_6.11.3")) flag++;

  if (rpm_check(release:"RHEL4", reference:"net-snmp-perl-5.1.2-11.el4_6.11.3")) flag++;

  if (rpm_check(release:"RHEL4", reference:"net-snmp-utils-5.1.2-11.el4_6.11.3")) flag++;


  if (rpm_check(release:"RHEL5", cpu:"i386", reference:"net-snmp-5.3.1-24.el5_2.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"net-snmp-5.3.1-24.el5_2.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"net-snmp-5.3.1-24.el5_2.1")) flag++;

  if (rpm_check(release:"RHEL5", reference:"net-snmp-devel-5.3.1-24.el5_2.1")) flag++;

  if (rpm_check(release:"RHEL5", reference:"net-snmp-libs-5.3.1-24.el5_2.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"i386", reference:"net-snmp-perl-5.3.1-24.el5_2.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"net-snmp-perl-5.3.1-24.el5_2.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"net-snmp-perl-5.3.1-24.el5_2.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"i386", reference:"net-snmp-utils-5.3.1-24.el5_2.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"net-snmp-utils-5.3.1-24.el5_2.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"net-snmp-utils-5.3.1-24.el5_2.1")) 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, "net-snmp / net-snmp-devel / net-snmp-libs / net-snmp-perl / etc");
  }
}