TencentOS Server 3: tomcat (TSSA-2025:0797)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Tencent Linux Security Advisory TSSA-2025:0797.
##

include('compat.inc');

if (description)
{
  script_id(271121);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/12/04");

  script_cve_id(
    "CVE-2025-48976",
    "CVE-2025-48988",
    "CVE-2025-48989",
    "CVE-2025-49125",
    "CVE-2025-52434",
    "CVE-2025-52520",
    "CVE-2025-53506"
  );

  script_name(english:"TencentOS Server 3: tomcat (TSSA-2025:0797)");

  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-2025:0797 advisory.

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

    CVE-2025-48976:
    Allocation of resources for multipart headers with insufficient limits enabled a DoS vulnerability in
    Apache Commons FileUpload.

    This issue affects Apache Commons FileUpload: from 1.0 before 1.6; from 2.0.0-M1 before 2.0.0-M4.

    Users are recommended to upgrade to versions 1.6 or 2.0.0-M4, which fix the issue.

    CVE-2025-48988:
    Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat.

    This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.7, from 10.1.0-M1 through 10.1.41, from
    9.0.0.M1 through 9.0.105.

    Users are recommended to upgrade to version 11.0.8, 10.1.42 or 9.0.106, which fix the issue.

    CVE-2025-48989:
    Improper Resource Shutdown or Release vulnerability in Apache Tomcat made Tomcat vulnerable to the made
    you reset attack.

    This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.9, from 10.1.0-M1 through 10.1.43 and from
    9.0.0.M1 through 9.0.107. Older, EOL versions may also be affected.

    Users are recommended to upgrade to one of versions 11.0.10, 10.1.44 or 9.0.108 which fix the issue.

    CVE-2025-49125:
    Authentication Bypass Using an Alternate Path or Channel vulnerability in Apache Tomcat. When using
    PreResources or PostResources mounted other than at the root of the web application, it was possible to
    access those resources via an unexpected path. That path was likely not to be protected by the same
    security constraints as the expected path, allowing those security constraints to be bypassed.

    This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.7, from 10.1.0-M1 through 10.1.41, from
    9.0.0.M1 through 9.0.105.

    Users are recommended to upgrade to version 11.0.8, 10.1.42 or 9.0.106, which fix the issue.

    CVE-2025-52434:
    Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability
    in Apache Tomcat when using the APR/Native connector. This was particularly noticeable with client
    initiated closes of HTTP/2 connections.

    This issue affects Apache Tomcat: from 9.0.0.M1 through 9.0.106.

    Users are recommended to upgrade to version 9.0.107, which fixes the issue.

    CVE-2025-52520:
    For some unlikely configurations of multipart upload, an Integer Overflow vulnerability in Apache Tomcat
    could lead to a DoS via bypassing of size limits.

    This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.8, from 10.1.0-M1 through 10.1.42, from
    9.0.0.M1 through 9.0.106.

    Users are recommended to upgrade to version 11.0.9, 10.1.43 or 9.0.107, which fix the issue.

    CVE-2025-53506:
    Uncontrolled Resource Consumption vulnerability in Apache Tomcat if an HTTP/2 client did not acknowledge
    the initial settings frame that reduces the maximum permitted concurrent streams.

    This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.8, from 10.1.0-M1 through 10.1.42, from
    9.0.0.M1 through 9.0.106.

    Users are recommended to upgrade to version 11.0.9, 10.1.43 or 9.0.107, which fix the issue.

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-20250797.xml");
  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:N/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:U/C:H/I:N/A:N");
  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:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-49125");
  script_set_attribute(attribute:"cvss4_score_source", value:"CVE-2025-53506");

  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:"2025/08/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/08/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/10/22");

  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:tomcat");
  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':'tomcat-9.0.87-1.tl3.6', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'tomcat-admin-webapps-9.0.87-1.tl3.6', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'tomcat-docs-webapp-9.0.87-1.tl3.6', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'tomcat-el-3.0-api-9.0.87-1.tl3.6', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'tomcat-jsp-2.3-api-9.0.87-1.tl3.6', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'tomcat-lib-9.0.87-1.tl3.6', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'tomcat-servlet-4.0-api-9.0.87-1.tl3.6', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'tomcat-webapps-9.0.87-1.tl3.6', '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, 'tomcat / tomcat-admin-webapps / tomcat-docs-webapp / etc');
}