Atlassian Confluence 8.9.x < 9.2.22 / 9.5.x < 10.2.14 (CONFSERVER-104406)

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

include('compat.inc');

if (description)
{
  script_id(350881);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/28");

  script_cve_id("CVE-2026-73566");
  script_xref(name:"IAVA", value:"2026-A-1023");

  script_name(english:"Atlassian Confluence 8.9.x < 9.2.22 / 9.5.x < 10.2.14 (CONFSERVER-104406)");

  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-104406 advisory.

  - node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.21, node-tar's filesFilter in
    src/list.ts uses the recursive mapHas helper to walk an archive entry path upward with path.dirname() and
    no segment cap when tar.t(...) or tar.x(...) receives a non-empty member-selection list. A crafted GNU L
    or PAX x long-path header with thousands of slash-separated segments reaches this.filter(entry.path,
    entry) in Parser[CONSUMEHEADER] in src/parse.ts before Unpack[CHECKPATH] applies maxDepth, causing an
    uncatchable RangeError stack overflow that terminates asynchronous and streaming Node.js consumers. This
    issue is fixed in version 7.5.21. (CVE-2026-73566)

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-104406");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Atlassian Confluence version 9.2.22, 10.2.14 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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-2026-73566");

  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:"2026/07/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/28");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:atlassian:confluence");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_set_attribute(attribute:"enable_cgi_scanning", value:"true");
  script_set_attribute(attribute:"stig_severity", value:"I");
  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": "8.9.0", "fixed_version": "9.2.22" },
        { "min_version": "9.5.1", "fixed_version": "10.2.14" }
      ]
    }
  ]
};

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