Atlassian Jira Service Management Data Center and Server < 5.12.40 / 10.3.x < 10.3.26 / 11.3.x < 11.3.12 (JSDSERVER-16809)

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

include('compat.inc');

if (description)
{
  script_id(363014);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/07");

  script_cve_id("CVE-2026-21589");

  script_name(english:"Atlassian Jira Service Management Data Center and Server < 5.12.40 / 10.3.x < 10.3.26 / 11.3.x < 11.3.12 (JSDSERVER-16809)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Atlassian Jira Service Management Data Center and Server (Jira Service Desk) host is missing a security
update.");
  script_set_attribute(attribute:"description", value:
"The version of Atlassian Jira Service Management Data Center and Server (Jira Service Desk) running on the remote host
is affected by a vulnerability as referenced in the JSDSERVER-16809 advisory.

  - This is a vulnerability in Bitbucket Data Center, Confluence Data Center, Jira Service Management Data
    Center, Jira Software Data Center, Bamboo Data Center. Crowd Data Center, Crucible and Fisheye. This
    Arbitrary File Access vulnerability allows an unauthenticated attacker to access specific files within the
    web application root directory in affected versions. Exploitation requires prior knowledge of the target
    file's exact name and path; this vulnerability does not allow attackers to enumerate or list directory
    contents. In some configurations, there may be some sensitive files that make this highly severe. This
    vulnerability allows an unauthenticated remote attacker to access specific files within the web
    application root directory in affected versions. The vulnerability must be addressed for affected versions
    of: -- Bitbucket Data Center, introduced in version >= 4.6.0, fix versions: 9.4.26, 10.2.8, 10.5.1 --
    Confluence Data Center, introduced in version >= 5.10.0, fix versions 9.2.26, 10.2.19 -- Crowd Data
    Center, introduced in version >= 2.11.0, fix versions 6.3.7, 7.0.3, 7.1.7, 7.2.4 -- Jira Software Data
    Center, introduced in version >= 7.1.0, fix versions 9.12.40, 10.3.26, 11.3.12 -- Jira Service Management
    Data Center, introduced in version >= 3.1.0, fix versions 5.12.40, 10.3.26, 11.3.12 -- Bamboo Data Center
    >= 7.0.1, fix versions 10.2.24, 12.1.12 -- Crucible, fix versions 4.9.15 -- Fisheye, fix version 4.9.15 --
    Exploitation requires prior knowledge of the target file's exact name and path. The vulnerability does not
    include the capability to enumerate or list directory contents. (CVE-2026-21589)

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/JSDSERVER-16809");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Atlassian Jira Service Management Data Center and Server version 5.12.40, 10.3.26, 11.3.12 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/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:L/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:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-21589");

  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:"2026/10/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/10/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/05");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:atlassian:jira_service_desk");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

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

  script_dependencies("jira_service_desk_installed_win.nbin", "jira_service_desk_installed_nix.nbin");
  script_require_keys("installed_sw/JIRA Service Desk Application");

  exit(0);
}

include('vdf.inc');

# @tvdl-content-verify-only
var vuln_data = {
  "metadata": {
    "spec_version": "1.0"
  },
  "checks": [
    {
      "product": {
        "name": "JIRA Service Desk Application",
        "type": "app"
      },
      "check_algorithm": "default",
      "constraints": [
        {
          "fixed_version": "5.12.40",
          "fixed_display": "5.12.40 / 10.3.26 / 11.3.12"
        },
        {
          "min_version": "10.3.25",
          "fixed_version": "10.3.26"
        },
        {
          "min_version": "11.3.11",
          "fixed_version": "11.3.12"
        }
      ]
    }
  ]
};

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