RHEL 3 / 4 / 5 : net-snmp (RHSA-2007:1045)

2007-11-16T00:00:00
ID REDHAT-RHSA-2007-1045.NASL
Type nessus
Reporter This script is Copyright (C) 2007-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2007-11-16T00:00:00

Description

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

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

A flaw was discovered in the way net-snmp handled certain requests. A remote attacker who can connect to the snmpd UDP port (161 by default) could send a malicious packet causing snmpd to crash, resulting in a denial of service. (CVE-2007-5846)

All users of net-snmp are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue.

                                        
                                            #%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-2007:1045. The text 
# itself is copyright (C) Red Hat, Inc.
#

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

if (description)
{
  script_id(28248);
  script_version("1.27");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2007-5846");
  script_bugtraq_id(26378);
  script_xref(name:"RHSA", value:"2007:1045");

  script_name(english:"RHEL 3 / 4 / 5 : net-snmp (RHSA-2007:1045)");
  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.

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

A flaw was discovered in the way net-snmp handled certain requests. A
remote attacker who can connect to the snmpd UDP port (161 by default)
could send a malicious packet causing snmpd to crash, resulting in a
denial of service. (CVE-2007-5846)

All users of net-snmp are advised to upgrade to these updated
packages, which contain a backported patch to resolve this issue."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2007-5846"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2007:1045"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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_cwe_id(399);

  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:5.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2007/11/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2007/11/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/11/16");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2021 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:"^(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-2007:1045";
  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.23")) flag++;

  if (rpm_check(release:"RHEL3", reference:"net-snmp-devel-5.0.9-2.30E.23")) flag++;

  if (rpm_check(release:"RHEL3", reference:"net-snmp-libs-5.0.9-2.30E.23")) flag++;

  if (rpm_check(release:"RHEL3", reference:"net-snmp-perl-5.0.9-2.30E.23")) flag++;

  if (rpm_check(release:"RHEL3", reference:"net-snmp-utils-5.0.9-2.30E.23")) flag++;


  if (rpm_check(release:"RHEL4", reference:"net-snmp-5.1.2-11.el4_6.11.1")) flag++;

  if (rpm_check(release:"RHEL4", reference:"net-snmp-devel-5.1.2-11.el4_6.11.1")) flag++;

  if (rpm_check(release:"RHEL4", reference:"net-snmp-libs-5.1.2-11.el4_6.11.1")) flag++;

  if (rpm_check(release:"RHEL4", reference:"net-snmp-perl-5.1.2-11.el4_6.11.1")) flag++;

  if (rpm_check(release:"RHEL4", reference:"net-snmp-utils-5.1.2-11.el4_6.11.1")) flag++;


  if (rpm_check(release:"RHEL5", cpu:"i386", reference:"net-snmp-5.3.1-19.el5_1.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"net-snmp-5.3.1-19.el5_1.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"net-snmp-5.3.1-19.el5_1.1")) flag++;

  if (rpm_check(release:"RHEL5", reference:"net-snmp-devel-5.3.1-19.el5_1.1")) flag++;

  if (rpm_check(release:"RHEL5", reference:"net-snmp-libs-5.3.1-19.el5_1.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"i386", reference:"net-snmp-perl-5.3.1-19.el5_1.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"net-snmp-perl-5.3.1-19.el5_1.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"net-snmp-perl-5.3.1-19.el5_1.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"i386", reference:"net-snmp-utils-5.3.1-19.el5_1.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"net-snmp-utils-5.3.1-19.el5_1.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"net-snmp-utils-5.3.1-19.el5_1.1")) 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");
  }
}