SAP NetWeaver AS Java Code Injection (3719397)

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

include('compat.inc');

if (description)
{
  script_id(306733);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/20");

  script_cve_id("CVE-2026-27674");
  script_xref(name:"IAVA", value:"2026-A-0328");

  script_name(english:"SAP NetWeaver AS Java Code Injection (3719397)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SAP NetWeaver AS Java server is affected by a code injection vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of SAP NetWeaver Application Server Java detected on the remote host is affected by a code injection
vulnerability as disclosed in the SAP Security Patch Day April 2026:

  - Due to a Code Injection vulnerability in SAP NetWeaver Application Server Java (Web Dynpro Java), an
    unauthenticated attacker could supply crafted input that is interpreted by the application and causes it
    to reference attacker-controlled content. If a victim accesses the affected functionality, that
    attacker-controlled content could be executed in the victim's browser, potentially resulting in session
    compromise. This could allow the attacker to execute arbitrary client-side code, impacting the
    confidentiality and integrity of the application, with no impact to availability. (CVE-2026-27674)

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://me.sap.com/notes/3719397");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch according to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N");
  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:R/S:C/C:L/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-27674");

  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:"2026/04/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/04/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/04/16");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:sap:netweaver_application_server");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Web Servers");

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

  script_dependencies("sap_netweaver_as_web_detect.nbin");
  script_require_keys("installed_sw/SAP Netweaver Application Server (AS)", "Settings/ParanoidReport");
  script_require_ports("Services/www", 80, 443, 8000, 50000);

  exit(0);
}

include('vcf_extras_sap.inc');

if (report_paranoia < 2) audit(AUDIT_PARANOID);

var app_info = vcf::sap_netweaver_as::get_app_info();

var fix = 'See vendor advisory';
var constraints = [
  {'equal' : '7.50', 'fixed_display' : fix }
];

vcf::sap_netweaver_as::check_version_and_report(
  app_info:app_info,
  constraints:constraints,
  severity:SECURITY_WARNING
);