OpenSSL 3.2.0 < 3.2.6 Multiple Vulnerabilities

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

include('compat.inc');

if (description)
{
  script_id(266319);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/24");

  script_cve_id("CVE-2025-9230", "CVE-2025-9231", "CVE-2025-9232");
  script_xref(name:"IAVA", value:"2025-A-0716-S");

  script_name(english:"OpenSSL 3.2.0 < 3.2.6 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 3.2.6. It is, therefore, affected by multiple
vulnerabilities as referenced in the 3.2.6 advisory.

  - Issue summary: A timing side-channel which could potentially allow remote recovery of the private key
    exists in the SM2 algorithm implementation on 64 bit ARM platforms. Impact summary: A timing side-channel
    in SM2 signature computations on 64 bit ARM platforms could allow recovering the private key by an
    attacker.. While remote key recovery over a network was not attempted by the reporter, timing measurements
    revealed a timing signal which may allow such an attack. OpenSSL does not directly support certificates
    with SM2 keys in TLS, and so this CVE is not relevant in most TLS contexts. However, given that it is
    possible to add support for such certificates via a custom provider, coupled with the fact that in such a
    custom provider context the private key may be recoverable via remote timing measurements, we consider
    this to be a Moderate severity issue. The FIPS modules in 3.5, 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected
    by this issue, as SM2 is not an approved algorithm. (CVE-2025-9231)

  - 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/89e790ac431125a4849992858490bed6b225eadf
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0148a6d7");
  # https://github.com/openssl/openssl/commit/b5282d677551afda7d20e9c00e09561b547b2dfd
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?62ce51cc");
  # https://github.com/openssl/openssl/commit/cba616c26ac8e7b37de5e77762e505ba5ca51698
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6f8cd955");
  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-2025-9231");
  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 3.2.6 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:N/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:H/PR:N/UI:N/S:U/C:H/I:N/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-2025-9231");

  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:"2025/10/01");

  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' : '3.2.0', 'fixed_version' : '3.2.6' },
  { 'min_version' : '3.2.4', 'fixed_version' : '3.2.6' }
];

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