Atlassian Confluence 6.6.x < 9.2.24 / 9.3.x < 10.2.17 / 11.0.0 (CONFSERVER-104474)

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

include('compat.inc');

if (description)
{
  script_id(367995);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/20");

  script_cve_id("CVE-2026-13006");

  script_name(english:"Atlassian Confluence 6.6.x < 9.2.24 / 9.3.x < 10.2.17 / 11.0.0 (CONFSERVER-104474)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Atlassian Confluence host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of Atlassian Confluence Server running on the remote host is affected by a vulnerability as referenced in
the CONFSERVER-104474 advisory.

  - ACE vulnerability in conditional configuration file processing by QOS.CH logback-core up to and including
    version 1.5.36 in Java applications, allows an attacker to execute arbitrary code circumventing existing
    protections against CVE-2025-11226 by compromising an existing logback configuration file or by injecting
    an environment variable before program execution. A successful attack requires the presence of Janino
    library to be present on the user's class path. In addition, the attacker must have write access to a
    configuration file. Alternatively, the attacker could inject a malicious environment variable pointing to
    a malicious configuration file. In both cases, the attack requires existing privilege. Please note that in
    logack version 1.5.37 conditional processing using Janino was removed. (CVE-2026-13006)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://jira.atlassian.com/browse/CONFSERVER-104474");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Atlassian Confluence version 9.2.24, 10.2.17, 11.0.0 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:C/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: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:"cvss4_vector", value:"CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N");
  script_set_attribute(attribute:"cvss4_supplemental", value:"CVSS:4.0/S:P/AU:N/RE:M/U:Green");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-13006");

  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:"2026/06/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/20");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:atlassian:confluence");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_set_attribute(attribute:"enable_cgi_scanning", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("confluence_detect.nasl", "confluence_nix_installed.nbin", "confluence_win_installed.nbin");
  script_require_keys("installed_sw/Atlassian Confluence");

  exit(0);
}

include('vdf.inc');

# @tvdl-content-verify-only
var vuln_data = {
  "metadata": {
    "spec_version": "1.0"
  },
  "checks": [
    {
      "product": {
        "name": "Atlassian Confluence",
        "type": "app"
      },
      "check_algorithm": "default",
      "constraints": [
        {
          "min_version": "6.6.0",
          "fixed_version": "9.2.24",
          "fixed_display": "9.2.24 / 10.2.17 / 11.0.0"
        },
        {
          "min_version": "9.3.1",
          "fixed_version": "10.2.17",
          "fixed_display": "10.2.17 / 11.0.0"
        }
      ]
    }
  ]
};

var vdf_result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_HOLE);
vdf::handle_check_and_report_errors(vdf_result:vdf_result);