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nessusThis script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.EULEROS_SA-2021-2210.NASL
HistoryJul 13, 2021 - 12:00 a.m.

EulerOS Virtualization 2.9.0 : unbound (EulerOS-SA-2021-2210)

2021-07-1300:00:00
This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
6

8.7 High

AI Score

Confidence

High

According to the versions of the unbound packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  • DISPUTED Unbound before 1.9.5 allows an out-of-bounds write via a compressed name in rdata_copy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited.(CVE-2019-25042)

  • DISPUTED Unbound before 1.9.5 allows an assertion failure via a compressed name in dname_pkt_copy. NOTE:
    The vendor disputes that this is a vulnerability.
    Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited.(CVE-2019-25041)

  • DISPUTED Unbound before 1.9.5 allows an infinite loop via a compressed name in dname_pkt_copy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited.(CVE-2019-25040)

  • DISPUTED Unbound before 1.9.5 allows an integer overflow in a size calculation in respip/respip.c.
    NOTE: The vendor disputes that this is a vulnerability.
    Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited.(CVE-2019-25039)

  • DISPUTED Unbound before 1.9.5 allows an integer overflow in a size calculation in dnscrypt/dnscrypt.c.
    NOTE: The vendor disputes that this is a vulnerability.
    Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited.(CVE-2019-25038)

  • DISPUTED Unbound before 1.9.5 allows an assertion failure and denial of service in dname_pkt_copy via an invalid packet. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited.(CVE-2019-25037)

  • DISPUTED Unbound before 1.9.5 allows an assertion failure and denial of service in synth_cname. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited.(CVE-2019-25036)

  • DISPUTED Unbound before 1.9.5 allows an out-of-bounds write in sldns_bget_token_par. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited.(CVE-2019-25035)

  • Unbound before 1.9.5 allows an integer overflow in sldns_str2wire_dname_buf_origin, leading to an out-of-bounds write. (CVE-2019-25034)

  • DISPUTED Unbound before 1.9.5 allows an integer overflow in the regional allocator via the ALIGN_UP macro. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited.(CVE-2019-25033)

  • DISPUTED Unbound before 1.9.5 allows configuration injection in create_unbound_ad_servers.sh upon a successful man-in-the-middle attack against a cleartext HTTP session. NOTE: The vendor does not consider this a vulnerability of the Unbound software.
    create_unbound_ad_servers.sh is a contributed script from the community that facilitates automatic configuration creation. It is not part of the Unbound installation.(CVE-2019-25031)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

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

if (description)
{
  script_id(151554);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/08");

  script_cve_id(
    "CVE-2019-25031",
    "CVE-2019-25033",
    "CVE-2019-25034",
    "CVE-2019-25035",
    "CVE-2019-25036",
    "CVE-2019-25037",
    "CVE-2019-25038",
    "CVE-2019-25039",
    "CVE-2019-25040",
    "CVE-2019-25041",
    "CVE-2019-25042"
  );

  script_name(english:"EulerOS Virtualization 2.9.0 : unbound (EulerOS-SA-2021-2210)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization host is missing multiple security
updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the unbound packages installed, the
EulerOS Virtualization installation on the remote host is affected by
the following vulnerabilities :

  - ** DISPUTED ** Unbound before 1.9.5 allows an
    out-of-bounds write via a compressed name in
    rdata_copy. NOTE: The vendor disputes that this is a
    vulnerability. Although the code may be vulnerable, a
    running Unbound installation cannot be remotely or
    locally exploited.(CVE-2019-25042)

  - ** DISPUTED ** Unbound before 1.9.5 allows an assertion
    failure via a compressed name in dname_pkt_copy. NOTE:
    The vendor disputes that this is a vulnerability.
    Although the code may be vulnerable, a running Unbound
    installation cannot be remotely or locally
    exploited.(CVE-2019-25041)

  - ** DISPUTED ** Unbound before 1.9.5 allows an infinite
    loop via a compressed name in dname_pkt_copy. NOTE: The
    vendor disputes that this is a vulnerability. Although
    the code may be vulnerable, a running Unbound
    installation cannot be remotely or locally
    exploited.(CVE-2019-25040)

  - ** DISPUTED ** Unbound before 1.9.5 allows an integer
    overflow in a size calculation in respip/respip.c.
    NOTE: The vendor disputes that this is a vulnerability.
    Although the code may be vulnerable, a running Unbound
    installation cannot be remotely or locally
    exploited.(CVE-2019-25039)

  - ** DISPUTED ** Unbound before 1.9.5 allows an integer
    overflow in a size calculation in dnscrypt/dnscrypt.c.
    NOTE: The vendor disputes that this is a vulnerability.
    Although the code may be vulnerable, a running Unbound
    installation cannot be remotely or locally
    exploited.(CVE-2019-25038)

  - ** DISPUTED ** Unbound before 1.9.5 allows an assertion
    failure and denial of service in dname_pkt_copy via an
    invalid packet. NOTE: The vendor disputes that this is
    a vulnerability. Although the code may be vulnerable, a
    running Unbound installation cannot be remotely or
    locally exploited.(CVE-2019-25037)

  - ** DISPUTED ** Unbound before 1.9.5 allows an assertion
    failure and denial of service in synth_cname. NOTE: The
    vendor disputes that this is a vulnerability. Although
    the code may be vulnerable, a running Unbound
    installation cannot be remotely or locally
    exploited.(CVE-2019-25036)

  - ** DISPUTED ** Unbound before 1.9.5 allows an
    out-of-bounds write in sldns_bget_token_par. NOTE: The
    vendor disputes that this is a vulnerability. Although
    the code may be vulnerable, a running Unbound
    installation cannot be remotely or locally
    exploited.(CVE-2019-25035)

  - Unbound before 1.9.5 allows an integer overflow in
    sldns_str2wire_dname_buf_origin, leading to an
    out-of-bounds write. (CVE-2019-25034)

  - ** DISPUTED ** Unbound before 1.9.5 allows an integer
    overflow in the regional allocator via the ALIGN_UP
    macro. NOTE: The vendor disputes that this is a
    vulnerability. Although the code may be vulnerable, a
    running Unbound installation cannot be remotely or
    locally exploited.(CVE-2019-25033)

  - ** DISPUTED ** Unbound before 1.9.5 allows
    configuration injection in create_unbound_ad_servers.sh
    upon a successful man-in-the-middle attack against a
    cleartext HTTP session. NOTE: The vendor does not
    consider this a vulnerability of the Unbound software.
    create_unbound_ad_servers.sh is a contributed script
    from the community that facilitates automatic
    configuration creation. It is not part of the Unbound
    installation.(CVE-2019-25031)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2021-2210
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a09237b4");
  script_set_attribute(attribute:"solution", value:
"Update the affected unbound packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-25042");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"patch_publication_date", value:"2021/07/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/07/13");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3-unbound");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:unbound-libs");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.9.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Huawei Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "2.9.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.9.0");
if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

flag = 0;

pkgs = ["python3-unbound-1.7.3-18.h6.eulerosv2r9",
        "unbound-libs-1.7.3-18.h6.eulerosv2r9"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    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, "unbound");
}

8.7 High

AI Score

Confidence

High

Related for EULEROS_SA-2021-2210.NASL