EulerOS Virtualization 2.12.1 : curl (EulerOS-SA-2025-1552)

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

include('compat.inc');

if (description)
{
  script_id(236911);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/05/17");

  script_cve_id("CVE-2024-8096", "CVE-2024-9681");

  script_name(english:"EulerOS Virtualization 2.12.1 : curl (EulerOS-SA-2025-1552)");

  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 curl packages installed, the EulerOS Virtualization installation on the remote host is
affected by the following vulnerabilities :

    When curl is told to use the Certificate Status Request TLS extension, often referred to as OCSP stapling,
    to verify that the server certificate is valid, it might fail to detect some OCSP problems and instead
    wrongly consider the response as fine.  If the returned status reports another error than 'revoked' (like
    for example 'unauthorized') it is not treated as a bad certficate.(CVE-2024-8096)

    When curl is asked to use HSTS, the expiry time for a subdomain might overwrite a parent domain's cache
    entry, making it end sooner or later than otherwise intended. This affects curl using applications that
    enable HSTS and use URLs with the insecure `HTTP://` scheme and perform transfers with hosts like
    `x.example.com` as well as `example.com` where the first host is a subdomain of the second host. (The HSTS
    cache either needs to have been populated manually or there needs to have been previous HTTPS accesses
    done as the cache needs to have entries for the domains involved to trigger this problem.) When
    `x.example.com` responds with `Strict-Transport-Security:` headers, this bug can make the subdomain's
    expiry timeout *bleed over* and get set for the parent domain `example.com` in curl's HSTS cache. The
    result of a triggered bug is that HTTP accesses to `example.com` get converted to HTTPS for a different
    period of time than what was asked for by the origin server. If `example.com` for example stops supporting
    HTTPS at its expiry time, curl might then fail to access `http://example.com` until the (wrongly set)
    timeout expires. This bug can also expire the parent's entry *earlier*, thus making curl inadvertently
    switch back to insecure HTTP earlier than otherwise intended.(CVE-2024-9681)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization curl security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2025-1552
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?33cd7f84");
  script_set_attribute(attribute:"solution", value:
"Update the affected curl packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:N/I:C/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-9681");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/12/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/05/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/05/17");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:curl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libcurl");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.12.1");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2025 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 != "2.12.1") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.12.1");
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 = [
  "curl-7.79.1-14.h31.eulerosv2r12",
  "libcurl-7.79.1-14.h31.eulerosv2r12"
];

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, "curl");
}