Debian dla-4800 : glance - security update

#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-4800. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(350952);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/29");

  script_cve_id(
    "CVE-2026-71196",
    "CVE-2026-71197",
    "CVE-2026-71198",
    "CVE-2026-77648"
  );

  script_name(english:"Debian dla-4800 : glance - security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing one or more security-related updates.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-4800 advisory.

    -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4800-1                [email protected]
    https://www.debian.org/lts/security/          Carlos Henrique Lima Melara
    September 29, 2026                            https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : glance
    Version        : 2:25.1.0-2+deb12u5
    CVE ID         : CVE-2026-71196 CVE-2026-71197 CVE-2026-71198 CVE-2026-77648
    Debian Bug     : 1144212 1146594

    Multiple vulnerabilities were discovered in Glance, OpenStack's image
    storage service.

    CVE-2026-71196, CVE-2026-71197 and CVE-2026-71198 / OSSA-2026-038

    Three related Server-Side Request Forgery (SSRF) vulnerabilities in
    the web-download import method and HTTP image location APIs: insecure
    default URI filtering permitted an authenticated user to fetch
    arbitrary internal URLs, including cloud metadata endpoints; the URI
    validator did not perform DNS resolution before applying host filters,
    allowing bypass via attacker-controlled domains and DNS rebinding
    attacks; and when the HTTP store was enabled, the image location API
    lacked host filtering entirely, storing fetched content as downloadable
    image data, converting blind SSRF into full-read exfiltration. An
    unbounded fetch when the source omitted Content-Length could also fill
    the disk (image_size_cap is now honored).

    CVE-2026-77648 / OSSN-0105

    The legacy (deprecated) /v2/tasks API accepted type=import tasks which
    bypassed the import URI filtering (host, port and path restrictions)
    enforced by the modern image import, allowing an admin to fetch
    internal URLs from the Glance service network (SSRF). Legacy import
    URIs are now validated the same way as modern import.

    For Debian 12 bookworm, these problems have been fixed in version
    2:25.1.0-2+deb12u5.

    We recommend that you upgrade your glance packages.

    For the detailed security status of glance please refer to
    its security tracker page at:
    https://security-tracker.debian.org/tracker/glance

    Further information about Debian LTS security advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://wiki.debian.org/LTS
    Attachment:
    signature.asc
    Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

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://security-tracker.debian.org/tracker/source-package/glance");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-71196");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-71197");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-71198");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-77648");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bookworm/glance");
  script_set_attribute(attribute:"solution", value:
"Upgrade the glance packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:M/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:H/UI:N/S:U/C:L/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-77648");
  script_set_attribute(attribute:"cvss4_score_source", value:"CVE-2026-71198");

  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:"2026/08/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/29");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:glance");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:glance-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:glance-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:glance-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3-glance");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

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

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}

include('debian_package.inc');

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);

var debian_release = get_kb_item('Host/Debian/release');
if ( isnull(debian_release) ) audit(AUDIT_OS_NOT, 'Debian');
debian_release = chomp(debian_release);
if (! preg(pattern:"^(12)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 12.0', 'Debian ' + debian_release);
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) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);

var pkgs = [
    {'release': '12.0', 'prefix': 'glance', 'reference': '2:25.1.0-2+deb12u5'},
    {'release': '12.0', 'prefix': 'glance-api', 'reference': '2:25.1.0-2+deb12u5'},
    {'release': '12.0', 'prefix': 'glance-common', 'reference': '2:25.1.0-2+deb12u5'},
    {'release': '12.0', 'prefix': 'glance-doc', 'reference': '2:25.1.0-2+deb12u5'},
    {'release': '12.0', 'prefix': 'python3-glance', 'reference': '2:25.1.0-2+deb12u5'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var _release = NULL;
  var prefix = NULL;
  var reference = NULL;
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (_release && prefix && reference) {
    if (deb_check(release:_release, prefix:prefix, reference:reference)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_NOTE,
    extra      : deb_report_get()
  );
  exit(0);
}
else
{
  var tested = deb_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'glance / glance-api / glance-common / glance-doc / python3-glance');
}