EulerOS 2.0 SP15 : httpd (EulerOS-SA-2026-3806)

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

include('compat.inc');

if (description)
{
  script_id(346777);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/17");

  script_cve_id(
    "CVE-2026-29167",
    "CVE-2026-29170",
    "CVE-2026-34355",
    "CVE-2026-34356",
    "CVE-2026-42535",
    "CVE-2026-42536",
    "CVE-2026-43951",
    "CVE-2026-44119",
    "CVE-2026-44185",
    "CVE-2026-44186",
    "CVE-2026-44631",
    "CVE-2026-48913",
    "CVE-2026-49975"
  );

  script_name(english:"EulerOS 2.0 SP15 : httpd (EulerOS-SA-2026-3806)");

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

    A buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67 and earlier allows an attack by an
    untrusted backend._x000D_
    Users are recommended to upgrade to version 2.4.68, which fixes this issue.(CVE-2026-34355)

    Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the
    configuration._x000D_
    _x000D_
    This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67._x000D_
    _x000D_
    Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-44631)

    Use After Free vulnerability in Apache HTTP Server module mod_http2 when file handles are already
    exhausted._x000D_
    _x000D_
    This issue affects Apache HTTP Server: from 2.4.55 through 2.4.67.(CVE-2026-48913)

    Out-of-bounds Read vulnerability in Apache HTTP Server with mod_headers and mod_mime and multiple response
    languages._x000D_
    _x000D_
    This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.(CVE-2026-43951)

    Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in the mod_proxy_ftp module in Apache
    HTTP Server with an attacker controlled backend FTP server._x000D_
    _x000D_
    This issue affects undefined: from 2.4.0 through 2.4.67._x000D_
    _x000D_
    Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-44186)

    Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial
    of service via malicious HTTP requests._x000D_
    _x000D_
    This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.(CVE-2026-49975)

    Buffer Over-read vulnerability in Apache HTTP Server via outbound OCSP requests to an attacker controlled
    OCSP server_x000D_
    _x000D_
    This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67._x000D_
    _x000D_
    Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-44185)

    Heap-based Buffer Overflow vulnerability in Apache HTTP Server with mod_xml2enc, xml2StartParse, and
    untrusted content_x000D_
    _x000D_
    This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67._x000D_
    _x000D_
    Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-42536)

    Use After Free vulnerability in Apache HTTP Server with mod_ldap in per-directory configuration_x000D_
    _x000D_
    This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67._x000D_
    _x000D_
    Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-29167)

    Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and
    ProxyPassReverseCookie*_x000D_
    _x000D_
    This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67._x000D_
    _x000D_
    Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-34356)

    A cross-site scripting vulnerability exists in mod_proxy_ftp's HTML directory list generation in Apache
    HTTP Server 2.4.67 and earlier when listing FTP directory contents either via forward or reverse proxy
    configuration._x000D_
    _x000D_
    Users are recommended to upgrade to version 2.4.68, which fixes this issue.(CVE-2026-29170)

    A flaw was found in the `mod_dav_fs` module of Apache HTTP Server. A WebDAV (Web Distributed Authoring and
    Versioning) content author could exploit a path handling issue to directly manipulate trusted DAV property
    databases. This manipulation could potentially lead to child process crashes, resulting in a Denial of
    Service (DoS).(CVE-2026-42535)

    Improper Privilege Management vulnerability in Apache HTTP Server 2.4.67 and earlier allows local
    .htaccess authors to read files with the privileges of the httpd user._x000D_
    _x000D_
    This issue affects Apache HTTP Server: from through 2.4.67._x000D_
    _x000D_
    Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-44119)

Tenable has extracted the preceding description block directly from the EulerOS httpd 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-2026-3806
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?791b71e6");
  script_set_attribute(attribute:"solution", value:
"Update the affected httpd 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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-49975");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-44631");

  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:"2026/06/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/17");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:httpd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:httpd-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:httpd-filesystem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:httpd-help");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:httpd-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:mod_ssl");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  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) 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/sp");
  script_exclude_keys("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 (_release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP15");

var sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(15)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP15");

if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP15", "EulerOS UVP " + uvp);

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 ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

var flag = 0;

var pkgs = [
  "httpd-2.4.58-7.h21510.12.eulerosv2r15",
  "httpd-devel-2.4.58-7.h21510.12.eulerosv2r15",
  "httpd-filesystem-2.4.58-7.h21510.12.eulerosv2r15",
  "httpd-help-2.4.58-7.h21510.12.eulerosv2r15",
  "httpd-tools-2.4.58-7.h21510.12.eulerosv2r15",
  "mod_ssl-2.4.58-7.h21510.12.eulerosv2r15"
];

foreach (var pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"15", 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, "httpd");
}