Huawei EulerOS: Security Advisory for dhcp (EulerOS-SA-2020-1273)

2020-03-19T00:00:00
ID OPENVAS:1361412562311220201273
Type openvas
Reporter Copyright (C) 2020 Greenbone Networks GmbH
Modified 2020-03-19T00:00:00

Description

The remote host is missing an update for the Huawei EulerOS

                                        
                                            # Copyright (C) 2020 Greenbone Networks GmbH
# Text descriptions are largely excerpted from the referenced
# advisory, and are Copyright (C) the respective author(s)
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.1.2.2020.1273");
  script_version("2020-03-19T13:43:23+0000");
  script_cve_id("CVE-2019-6470");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_tag(name:"last_modification", value:"2020-03-19 13:43:23 +0000 (Thu, 19 Mar 2020)");
  script_tag(name:"creation_date", value:"2020-03-19 13:43:23 +0000 (Thu, 19 Mar 2020)");
  script_name("Huawei EulerOS: Security Advisory for dhcp (EulerOS-SA-2020-1273)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone Networks GmbH");
  script_family("Huawei EulerOS Local Security Checks");
  script_dependencies("gb_huawei_euleros_consolidation.nasl");
  script_mandatory_keys("ssh/login/euleros", "ssh/login/rpms", re:"ssh/login/release=EULEROSVIRT-3\.0\.2\.2");

  script_xref(name:"EulerOS-SA", value:"2020-1273");
  script_xref(name:"URL", value:"https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2020-1273");

  script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS
  'dhcp' package(s) announced via the EulerOS-SA-2020-1273 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"There had existed in one of the ISC BIND libraries a bug in a function that was used by dhcpd when operating in DHCPv6 mode. There was also a bug in dhcpd relating to the use of this function per its documentation, but the bug in the library function prevented this from causing any harm. All releases of dhcpd from ISC contain copies of this, and other, BIND libraries in combinations that have been tested prior to release and are known to not present issues like this. Some third-party packagers of ISC software have modified the dhcpd source, BIND source, or version matchup in ways that create the crash potential. Based on reports available to ISC, the crash probability is large and no analysis has been done on how, or even if, the probability can be manipulated by an attacker. Affects: Builds of dhcpd versions prior to version 4.4.1 when using BIND versions 9.11.2 or later, or BIND versions with specific bug fixes backported to them. ISC does not have access to comprehensive version lists for all repackagings of dhcpd that are vulnerable. In particular, builds from other vendors may also be affected. Operators are advised to consult their vendor documentation.(CVE-2019-6470)");

  script_tag(name:"affected", value:"'dhcp' package(s) on Huawei EulerOS Virtualization 3.0.2.2.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "EULEROSVIRT-3.0.2.2") {

  if(!isnull(res = isrpmvuln(pkg:"dhclient", rpm:"dhclient~4.2.5~68.1.h12", rls:"EULEROSVIRT-3.0.2.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"dhcp", rpm:"dhcp~4.2.5~68.1.h12", rls:"EULEROSVIRT-3.0.2.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"dhcp-common", rpm:"dhcp-common~4.2.5~68.1.h12", rls:"EULEROSVIRT-3.0.2.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"dhcp-libs", rpm:"dhcp-libs~4.2.5~68.1.h12", rls:"EULEROSVIRT-3.0.2.2"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if (__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);