Containerd 2.1.x < 2.1.9 / 2.2.x < 2.2.5 / 2.3.x < 2.3.2 Multiple Vulnerabilities

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

include('compat.inc');

if (description)
{
  script_id(322408);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/26");

  script_cve_id("CVE-2026-50195", "CVE-2026-53489", "CVE-2026-53492");
  script_xref(name:"IAVA", value:"2026-A-0621");

  script_name(english:"Containerd 2.1.x < 2.1.9 / 2.2.x < 2.2.5 / 2.3.x < 2.3.2 Multiple Vulnerabilities");

  script_set_attribute(attribute:"synopsis", value:
"The container runtime installed on the remote host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Containerd on the remote host is 2.1.x prior to 2.1.9, 2.2.x prior to 2.2.5, or 2.3.x prior to 2.3.2.
It is, therefore, affected by multiple vulnerabilities:

  - containerd's CRI checkpoint import process contains a vulnerability where it fails to validate the image
    references specified within a checkpoint image's configuration. An attacker with permissions to create pods can
    use a crafted checkpoint image to force containerd to pull a malicious image and assign it an arbitrary local
    tag, thereby poisoning the node's local image cache. (CVE-2026-50195)

  - A bug was found in containerd where the CRI plugin restores container.log from a checkpoint image without
    validating a symlinked path. This could result in reading an arbitrary file on the host via kubectl logs.
    (CVE-2026-53489)

  - containerd's CRI implementation improperly trusts Container Device Interface (CDI) annotations found within
    untrusted checkpoint image metadata during container restoration. When restoring a container from a checkpoint,
    containerd preserves CDI-related annotations from the checkpoint archive rather than relying solely on the pod's
    create-time specification. This allows a user with pod creation permissions to bypass standard Kubernetes
    resource allocation and device plugin enforcement, injecting arbitrary CDI edits into the restored container.
    (CVE-2026-53492)

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/containerd/containerd/security/advisories/GHSA-33vj-92qq-66hc
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?04da9b3e");
  # https://github.com/containerd/containerd/security/advisories/GHSA-cvxm-645q-p574
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5dedb188");
  # https://github.com/containerd/containerd/security/advisories/GHSA-rgh6-rfwx-v388
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2095b362");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Containerd version 2.1.9, 2.2.5, 2.3.2 or later.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/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: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-2026-50195");

  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:"2026/06/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/06/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/06/24");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:linuxfoundation:containerd");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

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

  script_dependencies("containerd_installed.nbin");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'requires': [
    {'scope': 'target', 'match': {'os': 'linux'}}
  ],
  'checks': [
    {
      'product': {'name': 'containerd', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints' : [
          {'min_version': '2.1.0', 'fixed_version': '2.1.9'},
          {'min_version': '2.2.0', 'fixed_version': '2.2.5'},
          {'min_version': '2.3.0', 'fixed_version': '2.3.2'}
      ]
    }
  ]
};
var vdf_result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_HOLE);
vdf::handle_check_and_report_errors(vdf_result:vdf_result);