EulerOS Virtualization 2.11.0 : bind (EulerOS-SA-2026-3489)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(348020);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/18");

  script_cve_id(
    "CVE-2024-11187",
    "CVE-2025-40778",
    "CVE-2025-40780",
    "CVE-2026-1519",
    "CVE-2026-3039",
    "CVE-2026-3592",
    "CVE-2026-5946"
  );
  script_xref(name:"IAVA", value:"2025-A-0071-S");
  script_xref(name:"IAVA", value:"2025-A-0800-S");
  script_xref(name:"IAVA", value:"2026-A-0269-S");
  script_xref(name:"IAVA", value:"2026-A-0498-S");

  script_name(english:"EulerOS Virtualization 2.11.0 : bind (EulerOS-SA-2026-3489)");

  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 bind packages installed, the EulerOS Virtualization installation on the remote host is
affected by the following vulnerabilities :

    BIND resolvers are vulnerable to an amplified resource consumption/exhaustion attack. If a victim resolver
    makes a query to a specially crafted zone, the resolver will consume disproportionate resources.This issue
    affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0
    through 9.21.21, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through
    9.20.22-S1.(CVE-2026-3592)

    Multiple flaws have been identified in `named` related to the handling of DNS messages whose CLASS is not
    Internet (`IN`) -- for example, `CHAOS` or `HESIOD`, or DNS messages that specify meta-classes (`ANY` or
    `NONE`) in the question section. Specially crafted requests reaching the affected code paths -- recursion,
    dynamic updates (`UPDATE`), zone change notifications (`NOTIFY`), or processing of `IN`-specific record
    types in non-`IN` data -- can cause assertion failures in `named`. This issue affects BIND 9 versions
    9.11.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.11.3-S1
    through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.(CVE-2026-5946)

    If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver
    may consume excessive CPU. Authoritative-only servers are generally unaffected, although there are
    circumstances where authoritative servers may make recursive queries (see: https://kb.isc.org/docs/why-
    does-my-authoritative-server-make-recursive-queries).This issue affects BIND 9 versions 9.11.0 through
    9.16.50, 9.18.0 through 9.18.46, 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, 9.11.3-S1 through
    9.16.50-S1, 9.18.11-S1 through 9.18.46-S1, and 9.20.9-S1 through 9.20.20-S1.(CVE-2026-1519)

    BIND servers that are configured to use TKEY-based authentication via GSS-API tokens are vulnerable to
    excessive memory consumption when receiving and processing maliciously-constructed packets. Typically
    these servers will be found in Active Directory integrated DNS deployments and/or Kerberos-secured DNS
    environments.This issue affects BIND 9 versions 9.0.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0
    through 9.20.22, 9.21.0 through 9.21.21, 9.9.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and
    9.20.9-S1 through 9.20.22-S1.(CVE-2026-3039)

    In specific circumstances, due to a weakness in the Pseudo Random Number Generator (PRNG) that is used, it
    is possible for an attacker to predict the source port and query ID that BIND will use.This issue affects
    BIND 9 versions 9.16.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through
    9.21.12, 9.16.8-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through
    9.20.13-S1.(CVE-2025-40780)

    Under certain circumstances, BIND is too lenient when accepting records from answers, allowing an attacker
    to inject forged data into the cache.This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0
    through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1
    through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.(CVE-2025-40778)

    It is possible to construct a zone such that some queries to it will generate responses containing
    numerous records in the Additional section. An attacker sending many such queries can cause either the
    authoritative server itself or an independent resolver to use disproportionate resources processing the
    queries. Zones will usually need to have been deliberately crafted to attack this
    exposure.(CVE-2024-11187)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization bind security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2026-3489
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2a6041f3");
  script_set_attribute(attribute:"solution", value:
"Update the affected bind packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-40780");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/01/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/18");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind-chroot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind-dnssec-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind-dnssec-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind-license");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind-pkcs11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind-pkcs11-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind-pkcs11-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3-bind");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.11.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2026 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("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var _release = get_kb_item("Host/EulerOS/release");
if (isnull(_release) || _release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
var uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "2.11.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.11.0");
if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "aarch64" >!< cpu && "x86" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "x86" >!< cpu) audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

var flag = 0;

var pkgs = [
  "bind-9.16.23-6.h27.eulerosv2r11",
  "bind-chroot-9.16.23-6.h27.eulerosv2r11",
  "bind-dnssec-doc-9.16.23-6.h27.eulerosv2r11",
  "bind-dnssec-utils-9.16.23-6.h27.eulerosv2r11",
  "bind-libs-9.16.23-6.h27.eulerosv2r11",
  "bind-license-9.16.23-6.h27.eulerosv2r11",
  "bind-pkcs11-9.16.23-6.h27.eulerosv2r11",
  "bind-pkcs11-libs-9.16.23-6.h27.eulerosv2r11",
  "bind-pkcs11-utils-9.16.23-6.h27.eulerosv2r11",
  "bind-utils-9.16.23-6.h27.eulerosv2r11",
  "python3-bind-9.16.23-6.h27.eulerosv2r11"
];

foreach (var 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
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "bind");
}