TencentOS Server 3: httpd (TSSA-2022:0271)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Tencent Linux Security Advisory TSSA-2022:0271.
##

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

if (description)
{
  script_id(239116);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/12/05");

  script_cve_id(
    "CVE-2022-26377",
    "CVE-2022-28614",
    "CVE-2022-28615",
    "CVE-2022-29404",
    "CVE-2022-30522",
    "CVE-2022-30556",
    "CVE-2022-31813"
  );

  script_name(english:"TencentOS Server 3: httpd (TSSA-2022:0271)");

  script_set_attribute(attribute:"synopsis", value:
"The remote TencentOS Server 3 host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is,
therefore, affected by multiple vulnerabilities as referenced in the TSSA-2022:0271 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

      CVE-2022-28614:
      The ap_rwrite() function in Apache HTTP Server 2.4.53 and earlier may read unintended memory if an
    attacker can cause the server to reflect very large input using ap_rwrite() or ap_rputs(), such as with
    mod_luas r:puts() function. Modules compiled and distributed separately from Apache HTTP Server that use
    the 'ap_rputs' function and may pass it a very large (INT_MAX or larger) string must be compiled against
    current headers to resolve the issue.

      CVE-2022-28615:
      Apache HTTP Server 2.4.53 and earlier may crash or disclose information due to a read beyond bounds in
    ap_strcmp_match() when provided with an extremely large input buffer. While no code distributed with the
    server can be coerced into such a call, third-party modules or lua scripts that use ap_strcmp_match() may
    hypothetically be affected.

      CVE-2022-30522:
      If Apache HTTP Server 2.4.53 is configured to do transformations with mod_sed in contexts where the
    input to mod_sed may be very large, mod_sed may make excessively large memory allocations and trigger an
    abort.

      CVE-2022-30556:
      Apache HTTP Server 2.4.53 and earlier may return lengths to applications calling r:wsread() that point
    past the end of the storage allocated for the buffer.

      CVE-2022-31813:
      Apache HTTP Server 2.4.53 and earlier may not send the X-Forwarded-* headers to the origin server based
    on client side Connection header hop-by-hop mechanism. This may be used to bypass IP based authentication
    on the origin server/application.

      CVE-2022-29404:
      In Apache HTTP Server 2.4.53 and earlier, a malicious request to a lua script that calls r:parsebody(0)
    may cause a denial of service due to no default limit on possible input size.

      CVE-2022-26377:
      Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in mod_proxy_ajp
    of Apache HTTP Server allows an attacker to smuggle requests to the AJP server it forwards requests to.
    This issue affects Apache HTTP Server Apache HTTP Server 2.4 version 2.4.53 and prior versions.

Tenable has extracted the preceding description block directly from the Tencent 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://mirrors.tencent.com/tlinux/errata/tssa-20220271.xml");
  script_set_attribute(attribute:"solution", value:
"Update the affected 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-2022-31813");

  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:"2022/12/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/12/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/06/16");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:tencent:tencentos_server:3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:tencent:tencentos_server:httpd");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/etc/os-release", "Host/TencentOS/rpm-list", "Host/cpu");

  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) || 'TencentOS' >!< os_product) audit(AUDIT_OS_NOT, 'TencentOS');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'TencentOS');
if (! preg(pattern:"^3([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'TencentOS 3.x', 'TencentOS ' + os_version);

if (!get_kb_item('Host/TencentOS/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$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'TencentOS', cpu);

var constraints = [
  {
    'release': '3',
    'pkgs': [
      {'reference':'httpd-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-debuginfo-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-debuginfo-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-debugsource-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-debugsource-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-devel-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-devel-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-filesystem-2.4.37-51.module+el8.6.0+393+6e46e62a', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-manual-2.4.37-51.module+el8.6.0+393+6e46e62a', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-tools-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-tools-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-tools-debuginfo-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'httpd-tools-debuginfo-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_ldap-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_ldap-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_ldap-debuginfo-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_ldap-debuginfo-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_proxy_html-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_proxy_html-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_proxy_html-debuginfo-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_proxy_html-debuginfo-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_session-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_session-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_session-debuginfo-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_session-debuginfo-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_ssl-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_ssl-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_ssl-debuginfo-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'mod_ssl-debuginfo-2.4.37-51.module+el8.6.0+393+6e46e62a', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

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-debuginfo / httpd-debugsource / etc');
}