OpenSSL 3.0.0 < 3.0.18 Multiple Vulnerabilities

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

include('compat.inc');

if (description)
{
  script_id(266297);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/24");

  script_cve_id("CVE-2025-9230", "CVE-2025-9232");
  script_xref(name:"IAVA", value:"2025-A-0716-S");

  script_name(english:"OpenSSL 3.0.0 < 3.0.18 Multiple Vulnerabilities");

  script_set_attribute(attribute:"synopsis", value:
"The remote service is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of OpenSSL installed on the remote host is prior to 3.0.18. It is, therefore, affected by multiple
vulnerabilities as referenced in the 3.0.18 advisory.

  - Issue summary: An application using the OpenSSL HTTP client API functions may trigger an out-of-bounds
    read if the 'no_proxy' environment variable is set and the host portion of the authority component of the
    HTTP URL is an IPv6 address. Impact summary: An out-of-bounds read can trigger a crash which leads to
    Denial of Service for an application. The OpenSSL HTTP client API functions can be used directly by
    applications but they are also used by the OCSP client functions and CMP (Certificate Management Protocol)
    client implementation in OpenSSL. However the URLs used by these implementations are unlikely to be
    controlled by an attacker. In this vulnerable code the out of bounds read can only trigger a crash.
    Furthermore the vulnerability requires an attacker-controlled URL to be passed from an application to the
    OpenSSL function and the user has to have a 'no_proxy' environment variable set. For the aforementioned
    reasons the issue was assessed as Low severity. The vulnerable code was introduced in the following patch
    releases: 3.0.16, 3.1.8, 3.2.4, 3.3.3, 3.4.0 and 3.5.0. The FIPS modules in 3.5, 3.4, 3.3, 3.2, 3.1 and
    3.0 are not affected by this issue, as the HTTP client implementation is outside the OpenSSL FIPS module
    boundary. (CVE-2025-9232)

  - Issue summary: An application trying to decrypt CMS messages encrypted using password based encryption can
    trigger an out-of-bounds read and write. Impact summary: This out-of-bounds read may trigger a crash which
    leads to Denial of Service for an application. The out-of-bounds write can cause a memory corruption which
    can have various consequences including a Denial of Service or Execution of attacker-supplied code.
    Although the consequences of a successful exploit of this vulnerability could be severe, the probability
    that the attacker would be able to perform it is low. Besides, password based (PWRI) encryption support in
    CMS messages is very rarely used. For that reason the issue was assessed as Moderate severity according to
    our Security Policy. The FIPS modules in 3.5, 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected by this issue,
    as the CMS implementation is outside the OpenSSL FIPS module boundary. (CVE-2025-9230)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://github.com/openssl/openssl/commit/654dc11d23468a74fc8ea4672b702dd3feb7be4b
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?cd15648c");
  # https://github.com/openssl/openssl/commit/a79c4ce559c6a3a8fd4109e9f33c1185d5bf2def
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7885063d");
  script_set_attribute(attribute:"see_also", value:"https://openssl-library.org/news/secadv/20250930.txt");
  # https://openssl-library.org/policies/general/security-policy/index.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?eac4598c");
  script_set_attribute(attribute:"see_also", value:"https://www.cve.org/CVERecord?id=CVE-2025-9230");
  script_set_attribute(attribute:"see_also", value:"https://www.cve.org/CVERecord?id=CVE-2025-9232");
  script_set_attribute(attribute:"solution", value:
"Upgrade to OpenSSL version 3.0.18 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/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: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-2025-9232");

  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:"2025/09/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/09/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/09/30");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:openssl:openssl");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("openssl_version.nasl", "openssl_nix_installed.nbin", "openssl_win_installed.nbin");
  script_require_keys("installed_sw/OpenSSL");

  exit(0);
}

include('vcf.inc');
include('vcf_extras_openssl.inc');

var app_info = vcf::combined_get_app_info(app:'OpenSSL');

vcf::check_all_backporting(app_info:app_info);

var constraints = [
  { 'min_version' : '3.0.0', 'fixed_version' : '3.0.18' },
  { 'min_version' : '3.0.16', 'fixed_version' : '3.0.18' }
];

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