Oracle Database Server (May 2026 CSPU)

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

include('compat.inc');

if (description)
{
  script_id(318804);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/05");

  script_cve_id("CVE-2026-46833", "CVE-2026-46834", "CVE-2026-46835");
  script_xref(name:"IAVA", value:"2026-A-0528");

  script_name(english:"Oracle Database Server (May 2026 CSPU)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The versions of Oracle Database Server installed on the remote host are affected by multiple vulnerabilities as
referenced in the May 2026 CSPU advisory.

  - Vulnerability in the Net Service component of Oracle Database Server. Supported versions that are affected
    are 23.4.0-23.26.2. Difficult to exploit vulnerability allows unauthenticated attacker with network access
    via TLS to compromise Net Service. While the vulnerability is in Net Service, attacks may significantly
    impact additional products (scope change). Successful attacks of this vulnerability can result in takeover
    of Net Service. (CVE-2026-46833)

  - Vulnerability in the Net Service component of Oracle Database Server. Supported versions that are affected
    are 23.4.0-23.26.2. Easily exploitable vulnerability allows unauthenticated attacker with network access
    via TLS to compromise Net Service. Successful attacks of this vulnerability can result in unauthorized
    ability to cause a hang or frequently repeatable crash (complete DOS) of Net Service. (CVE-2026-46834)

  - Vulnerability in the Net Service component of Oracle Database Server. Supported versions that are affected
    are 23.4.0-23.26.2. Easily exploitable vulnerability allows unauthenticated attacker with network access
    via TLS to compromise Net Service. Successful attacks of this vulnerability can result in unauthorized
    ability to cause a hang or frequently repeatable crash (complete DOS) of Net Service. (CVE-2026-46835)

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://www.oracle.com/security-alerts/cspumay2026.html");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch according to the May 2026 Oracle Critical Patch Update advisory.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-46833");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/05/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/05/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/06/05");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:database_server");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Databases");

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

  script_dependencies("oracle_rdbms_query_patch_info.nbin", "oracle_rdbms_patch_info.nbin");

  exit(0);
}

include('vcf_extras_oracle.inc');

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

var constraints = [
  # RDBMS:
  {'min_version': '23.0', 'fixed_version': '23.26.1.0.0', 'missing_patch':'39345746', 'os':'unix', 'component':'db'},
  {'min_version': '23.26.2', 'fixed_version': '23.26.2.0.0', 'missing_patch':'39345754', 'os':'unix', 'component':'db'},
];

vcf::oracle_rdbms::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);