EulerOS Virtualization 2.10.0 : cifs-utils (EulerOS-SA-2026-3864)

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

include('compat.inc');

if (description)
{
  script_id(348537);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/21");

  script_cve_id("CVE-2026-12505");
  script_xref(name:"IAVB", value:"2026-B-0164");

  script_name(english:"EulerOS Virtualization 2.10.0 : cifs-utils (EulerOS-SA-2026-3864)");

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

    A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an
    existing live connection even though the TLS configuration mismatches so it should not.(CVE-2026-8286)

    ['Hello friends,', 'CVE-2026-8286: wrong STARTTLS connection reuse (LOW)', 'CVE-2026-8458: wrong reuse for
    different services (LOW)', 'CVE-2026-8924: traling dot domain super cookie (LOW)', 'CVE-2026-8925: SASL
    double-free (MEDIUM)', 'CVE-2026-8926: password leak with netrc and user in URL (LOW)', 'CVE-2026-8927:
    env-set cross-proxy Digest auth state leak (MEDIUM)', 'CVE-2026-8932: incomplete mTLS config matching in
    conn reuse (LOW)', 'CVE-2026-9079: stale proxy password leak (MEDIUM)', 'CVE-2026-9080: UAF after pause in
    socket callback (LOW)', 'CVE-2026-9545: exposing HTTP/3 early data (LOW)', 'CVE-2026-9546: sending old
    referer (LOW)', 'CVE-2026-9547: SSH improper host validation (LOW)', 'CVE-2026-10536: HTTP/2 stream-
    dependency tree UAF (LOW)', 'CVE-2026-11352: QUIC zero-length UDP datagrams busy-loop (LOW)',
    'CVE-2026-11564: Native CA trust persist (LOW)', 'CVE-2026-11586: WS Auto-PONG memory exhaustion (LOW)',
    'CVE-2026-11856: cross-origin Digest auth state leak (MEDIUM)', 'CVE-2026-12064: proto-default skips SSH
    verification (LOW)', '--\n\n / daniel.haxx.se ||'](CVE-2026-8924)

    When reusing a libcurl handle for sequential transfers driven by environment-variable proxy configuration,
    libcurl fails to clear the proxy authentication state between requests. Specifically, if the initial
    transfer authenticates against `proxyA` using Digest auth, a subsequent transfer routed through `proxyB`
    erroneously leaks the `Proxy-Authorization:` header intended solely for `proxyA`.(CVE-2026-8927)

    When a libcurl-based application performs transfers via `SCP://` or `SFTP://` and utilizes the
    `CURLOPT_SSH_KEYFUNCTION` callback, it may silently accept an untrusted server. This vulnerability occurs
    when a server presents a host key type that does not match the specific key type already recorded for that
    host in the `known_hosts` file. Instead of rejecting the mismatch, the callback mechanism fails to
    properly enforce the restriction, allowing the connection to succeed without warning and risking a
    potential man-in-the-middle attack.(CVE-2026-9547)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization cifs-utils security
advisory.

Note that Nessus has not tested for this issue 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-2026-3864
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?fb3daeea");
  script_set_attribute(attribute:"solution", value:
"Update the affected cifs-utils packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/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-2026-12505");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/06/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/21");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:cifs-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:cifs-utils-help");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.10.0");
  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 != "2.10.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.10.0");
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 = [
  "cifs-utils-6.10-0.h9.eulerosv2r10",
  "cifs-utils-help-6.10-0.h9.eulerosv2r10"
];

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

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    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, "cifs-utils");
}