Oracle Linux 10 : httpd (ELSA-2026-89860)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2026-89860.
##

include('compat.inc');

if (description)
{
  script_id(372189);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/26");

  script_cve_id(
    "CVE-2026-46729",
    "CVE-2026-48005",
    "CVE-2026-56153",
    "CVE-2026-56154",
    "CVE-2026-63045",
    "CVE-2026-63292",
    "CVE-2026-63686",
    "CVE-2026-63718",
    "CVE-2026-73636",
    "CVE-2026-73637",
    "CVE-2026-93546"
  );

  script_name(english:"Oracle Linux 10 : httpd (ELSA-2026-89860)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Oracle Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in
the ELSA-2026-89860 advisory.

    - Related: RHEL-275253 - httpd: Arbitrary code execution via oversized Host
      header in mod_vhost_alias (CVE-2026-63292)
    - Resolves: RHEL-280355 - httpd: Denial of Service via mod_rewrite
      lookahead (CVE-2026-56154)
    - Resolves: RHEL-275545 CVE-2026-48005 httpd: Denial of service via forged
      Authorization headers in mod_auth_digest
    - Resolves: RHEL-275331 CVE-2026-73636 httpd: Authentication bypass via
      credential replay in mod_auth_digest
    - Resolves: RHEL-275222 CVE-2026-73637 httpd: Authentication state corruption
      via concurrent Digest authentication requests
    - Resolves: RHEL-275315 CVE-2026-56153 httpd: Denial of Service via heap-based
      buffer overflow in mod_charset_lite
    - Resolves: RHEL-275302 CVE-2026-46729 httpd: mod_heartmonitor: Denial of
      Service via NULL pointer dereference
    - Resolves: RHEL-275269 CVE-2026-63045 httpd: unauthorized connection to
      arbitrary hosts via crafted FTP PASV response
    - Resolves: RHEL-275253 CVE-2026-63292 httpd: Arbitrary code execution via
      oversized Host header in mod_vhost_alias
    - Resolves: RHEL-275238 CVE-2026-63686 httpd: Denial of Service via charset
      conversion failure in mod_xml2enc
    - Resolves: RHEL-275208 CVE-2026-93546 httpd: Denial of Service via integer
      overflow in mod_dav_fs
    - Resolves: RHEL-275169 CVE-2026-63718 httpd: HTTP response smuggling via
      crafted Transfer-Encoding response in mod_proxy_uwsgi
    - Resolves: RHEL-190812 - httpd: Apache HTTP Server: Arbitrary code execution
      or denial of service via use-after-free in mod_ldap per-directory
      configuration (CVE-2026-29167)
    - Resolves: RHEL-192750 - mod_proxy_html regression in CVE-2026-34355 fix
    - Resolves: RHEL-186221 - httpd: Apache HTTP Server: Heap-based Buffer Overflow
      via malicious backend servers (CVE-2026-34356)
    - Resolves: RHEL-186195 - httpd: Apache HTTP Server: Heap-based Buffer Overflow
      via untrusted content in mod_xml2enc (CVE-2026-42536)
    - Resolves: RHEL-186182 - httpd: Apache HTTP Server: Buffer overflow in
      mod_proxy_html allows security bypass (CVE-2026-34355)
    - Resolves: RHEL-186158 - httpd: Apache HTTP Server: Buffer Over-read via
      outbound OCSP requests to attacker-controlled server (CVE-2026-44185)
    - Resolves: RHEL-184305 - httpd: Apache HTTP Server: Denial of Service via
      crafted regular expressions (CVE-2026-44631)
    - Resolves : RHEL-182581 - httpd: incomplete fix for
      CVE-2023-38709 (CVE-2024-42516)
    - Resolves: RHEL-175621 - httpd: NULL pointer dereference via specially crafted
      request (CVE-2026-29169)
    - Also addresses CVE-2026-44119, CVE-2026-44186, CVE-2026-42535,
      CVE-2026-24072, CVE-2026-33006, CVE-2026-43951
    - Resolves: RHEL-173549 - httpd: Apache HTTP Server mod_proxy_ajp: Arbitrary
      code execution via heap-based buffer overflow (CVE-2026-28780)
    - Resolves: RHEL-175065 - httpd: NULL pointer dereference can cause a child
      process crash (CVE-2026-33007)
    - Resolves: RHEL-175095 - httpd: off-by-one out-of-bounds reads in AJP getter
      functions (CVE-2026-33857)
    - Resolves: RHEL-175039 - httpd: heap-based buffer over-read due to missing
      null-termination check (CVE-2026-34032)

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://linux.oracle.com/errata/ELSA-2026-89860.html");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/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: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-2026-56154");

  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:"2026/10/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/10/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/26");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:10");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:httpd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:httpd-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:httpd-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:httpd-filesystem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:httpd-manual");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:httpd-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:mod_ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:mod_lua");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:mod_proxy_html");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:mod_session");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:mod_ssl");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Oracle Linux 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_info2.nasl");
  script_require_keys("Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/local_checks_enabled");

  exit(0);
}


include('rpm2.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_product = get_kb_item('installed_os/local/SSH/0/product');
if (isnull(os_product) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:os_product)) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'Oracle Linux');
if (! preg(pattern:"^10([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'Oracle Linux 10.x', 'Oracle Linux ' + os_version);

if (!get_kb_item('Host/RedHat/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) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);

var constraints = [
  {
    'release': '10',
    'pkgs': [
      {'reference':'httpd-2.4.63-13.0.1.el10_2.8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-core-2.4.63-13.0.1.el10_2.8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-devel-2.4.63-13.0.1.el10_2.8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-filesystem-2.4.63-13.0.1.el10_2.8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-manual-2.4.63-13.0.1.el10_2.8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-tools-2.4.63-13.0.1.el10_2.8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_ldap-2.4.63-13.0.1.el10_2.8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_lua-2.4.63-13.0.1.el10_2.8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_proxy_html-2.4.63-13.0.1.el10_2.8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'mod_session-2.4.63-13.0.1.el10_2.8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_ssl-2.4.63-13.0.1.el10_2.8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'httpd-2.4.63-13.0.1.el10_2.8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-core-2.4.63-13.0.1.el10_2.8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-devel-2.4.63-13.0.1.el10_2.8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-filesystem-2.4.63-13.0.1.el10_2.8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-manual-2.4.63-13.0.1.el10_2.8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-tools-2.4.63-13.0.1.el10_2.8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_ldap-2.4.63-13.0.1.el10_2.8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_lua-2.4.63-13.0.1.el10_2.8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_proxy_html-2.4.63-13.0.1.el10_2.8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'mod_session-2.4.63-13.0.1.el10_2.8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_ssl-2.4.63-13.0.1.el10_2.8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'}
    ]
  }
];

var os_release = get_one_kb_item('installed_os/local/SSH/0/release');
var os_sp = get_one_kb_item('Host/*/minor_release');

var flag = 0;
var reference;
var sp;
var _cpu;
var el_string;
var rpm_spec_vers_cmp;
var epoch;
var allowmaj;
var exists_check;
var cves;
foreach var constraint ( constraints ) {
  # Check that the target release is equal to the affected release
  if (!empty_or_null(constraint['release'])){
    if (constraint['release'] != os_release) continue;
  }
  if (!empty_or_null(constraint['sp'])){
    if (constraint['sp'] != os_sp) continue;
  }
  foreach var pkg ( constraint['pkgs'] ) {
    reference = NULL;
    sp = NULL;
    _cpu = NULL;
    el_string = NULL;
    rpm_spec_vers_cmp = NULL;
    epoch = NULL;
    allowmaj = NULL;
    exists_check = NULL;
    cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        ## (no known rpm to check OR known rpm_exists)
        (!exists_check || rpm_exists(rpm:exists_check)) &&
        rpm_check(sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) 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 / httpd-core / httpd-devel / etc');
}