EulerOS Virtualization 2.11.1 : openssl (EulerOS-SA-2024-1417)

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

include('compat.inc');

if (description)
{
  script_id(192330);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/11");

  script_cve_id("CVE-2023-4807", "CVE-2023-5678");
  script_xref(name:"IAVA", value:"2023-A-0462-S");
  script_xref(name:"IAVA", value:"2024-A-0121-S");

  script_name(english:"EulerOS Virtualization 2.11.1 : openssl (EulerOS-SA-2024-1417)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the openssl packages installed, the EulerOS Virtualization installation on the remote host
is affected by the following vulnerabilities :

  - Issue summary: The POLY1305 MAC (message authentication code) implementation contains a bug that might
    corrupt the internal state of applications on the Windows 64 platform when running on newer X86_64
    processors supporting the AVX512-IFMA instructions. Impact summary: If in an application that uses the
    OpenSSL library an attacker can influence whether the POLY1305 MAC algorithm is used, the application
    state might be corrupted with various application dependent consequences. The POLY1305 MAC (message
    authentication code) implementation in OpenSSL does not save the contents of non-volatile XMM registers on
    Windows 64 platform when calculating the MAC of data larger than 64 bytes. Before returning to the caller
    all the XMM registers are set to zero rather than restoring their previous content. The vulnerable code is
    used only on newer x86_64 processors supporting the AVX512-IFMA instructions. The consequences of this
    kind of internal application state corruption can be various - from no consequences, if the calling
    application does not depend on the contents of non-volatile XMM registers at all, to the worst
    consequences, where the attacker could get complete control of the application process. However given the
    contents of the registers are just zeroized so the attacker cannot put arbitrary values inside, the most
    likely consequence, if any, would be an incorrect result of some application dependent calculations or a
    crash leading to a denial of service. The POLY1305 MAC algorithm is most frequently used as part of the
    CHACHA20-POLY1305 AEAD (authenticated encryption with associated data) algorithm. The most common usage of
    this AEAD cipher is with TLS protocol versions 1.2 and 1.3 and a malicious client can influence whether
    this AEAD cipher is used by the server. This implies that server applications using OpenSSL can be
    potentially impacted. However we are currently not aware of any concrete application that would be
    affected by this issue therefore we consider this a Low severity security issue. As a workaround the
    AVX512-IFMA instructions support can be disabled at runtime by setting the environment variable
    OPENSSL_ia32cap: OPENSSL_ia32cap=:~0x200000 The FIPS provider is not affected by this issue.
    (CVE-2023-4807)

  - Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or
    parameters may be very slow. Impact summary: Applications that use the functions DH_generate_key() to
    generate an X9.42 DH key may experience long delays. Likewise, applications that use DH_check_pub_key(),
    DH_check_pub_key_ex() or EVP_PKEY_public_check() to check an X9.42 DH key or X9.42 DH parameters may
    experience long delays. Where the key or parameters that are being checked have been obtained from an
    untrusted source this may lead to a Denial of Service. While DH_check() performs all the necessary checks
    (as of CVE-2023-3817), DH_check_pub_key() doesn't make any of these checks, and is therefore vulnerable
    for excessively large P and Q parameters. Likewise, while DH_generate_key() performs a check for an
    excessively large P, it doesn't check for an excessively large Q. An application that calls
    DH_generate_key() or DH_check_pub_key() and supplies a key or parameters obtained from an untrusted source
    could be vulnerable to a Denial of Service attack. DH_generate_key() and DH_check_pub_key() are also
    called by a number of other OpenSSL functions. An application calling any of those other functions may
    similarly be affected. The other functions affected by this are DH_check_pub_key_ex(),
    EVP_PKEY_public_check(), and EVP_PKEY_generate(). Also vulnerable are the OpenSSL pkey command line
    application when using the '-pubcheck' option, as well as the OpenSSL genpkey command line application.
    The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers
    are not affected by this issue. (CVE-2023-5678)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security
advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional
issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2024-1417
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b630407a");
  script_set_attribute(attribute:"solution", value:
"Update the affected openssl packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-2023-4807");

  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:"2023/09/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/03/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/03/21");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:openssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:openssl-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:openssl-perl");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.11.1");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Huawei Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/uvp_version");

  exit(0);
}

include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var _release = get_kb_item("Host/EulerOS/release");
if (isnull(_release) || _release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
var uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "2.11.1") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.11.1");
if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "aarch64" >!< cpu && "x86" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

var flag = 0;

var pkgs = [
  "openssl-1.1.1m-2.h34.eulerosv2r11",
  "openssl-libs-1.1.1m-2.h34.eulerosv2r11",
  "openssl-perl-1.1.1m-2.h34.eulerosv2r11"
];

foreach (var pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "openssl");
}