RHCOS 4 : OpenShift Container Platform 4.15.0 (RHSA-2023:7201)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2023:7201. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(191073);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/16");

  script_cve_id(
    "CVE-2023-39325",
    "CVE-2023-39326",
    "CVE-2023-45287",
    "CVE-2023-48795"
  );
  script_xref(name:"RHSA", value:"2023:7201");

  script_name(english:"RHCOS 4 : OpenShift Container Platform 4.15.0 (RHSA-2023:7201)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat CoreOS host is missing one or more security updates for OpenShift Container Platform 4.15.0.");
  script_set_attribute(attribute:"description", value:
"The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by multiple vulnerabilities
as referenced in the RHSA-2023:7201 advisory.

  - A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive
    server resource consumption. While the total number of requests is bounded by the
    http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create
    a new request while the existing one is still executing. With the fix applied, HTTP/2 servers now bound
    the number of simultaneously executing handler goroutines to the stream concurrency limit
    (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client
    has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows
    too large, the server will terminate the connection. This issue is also fixed in golang.org/x/net/http2
    for users manually configuring HTTP/2. The default stream concurrency limit is 250 streams (requests) per
    HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the
    Server.MaxConcurrentStreams setting and the ConfigureServer function. (CVE-2023-39325)

  - A malicious HTTP sender can use chunk extensions to cause a receiver reading from a request or response
    body to read many more bytes from the network than are in the body. A malicious HTTP client can further
    exploit this to cause a server to automatically read a large amount of data (up to about 1GiB) when a
    handler fails to read the entire body of a request. Chunk extensions are a little-used HTTP feature which
    permit including additional metadata in a request or response body sent using the chunked encoding. The
    net/http chunked encoding reader discards this metadata. A sender can exploit this by inserting a large
    metadata segment with each byte transferred. The chunk reader now produces an error if the ratio of real
    body to encoded bytes grows too small. (CVE-2023-39326)

  - Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA
    blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective.
    In particular it appears as if the removal of PKCS#1 padding may leak timing information, which in turn
    could be used to recover session key bits. In Go 1.20, the crypto/tls library switched to a fully constant
    time RSA implementation, which we do not believe exhibits any timing side channels. (CVE-2023-45287)

  - The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other
    products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the
    extension negotiation message), and a client and server may consequently end up with a connection for
    which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because
    the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and
    mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of
    ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in [email protected] and
    (if CBC is used) the [email protected] MAC algorithms. This also affects Maverick Synergy Java SSH API
    before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80,
    AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0,
    Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15,
    SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH
    through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang
    XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd
    through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and
    LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3,
    Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server
    before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the
    mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh
    crate before 0.40.2 for Rust. (CVE-2023-48795)

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://access.redhat.com/security/cve/CVE-2023-39325");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2023-39326");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2023-45287");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2023-48795");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2023:7201");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/2243296");
  script_set_attribute(attribute:"solution", value:
"Update the RHCOS OpenShift Container Platform 4.15.0 packages based on the guidance in RHSA-2023:7201.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/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:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-45287");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(208, 222, 400);
  script_set_attribute(attribute:"vendor_severity", value:"Important");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/10/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/02/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/02/27");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8:coreos");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:9:coreos");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:buildah");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:buildah-tests");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:butane");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:butane-redistributable");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:containernetworking-plugins");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:cri-o");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:cri-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ignition");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ignition-validate");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-clients-redistributable");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-hyperkube");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:podman");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:podman-catatonit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:podman-docker");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:podman-gvproxy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:podman-plugins");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:podman-remote");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:podman-tests");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:runc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:skopeo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:skopeo-tests");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Red Hat 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/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include('rpm.inc');
include('rhel.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat CoreOS');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'eq', os_version: os_ver, rhel_version: '4.15')) audit(AUDIT_OS_NOT, 'Red Hat CoreOS 4.15', 'Red Hat CoreOS ' + os_ver);

if (!get_kb_item('Host/RedHat/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$" && 's390' >!< cpu && 'aarch64' >!< cpu && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat CoreOS', cpu);

var pkgs = [
    {'reference':'buildah-1.29.1-20.2.rhaos4.15.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openshift-hyperkube'},
    {'reference':'buildah-1.29.1-20.2.rhaos4.15.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openshift-hyperkube'},
    {'reference':'buildah-tests-1.29.1-20.2.rhaos4.15.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openshift-hyperkube'},
    {'reference':'buildah-tests-1.29.1-20.2.rhaos4.15.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openshift-hyperkube'},
    {'reference':'butane-0.20.0-1.rhaos4.15.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
    {'reference':'butane-redistributable-0.20.0-1.rhaos4.15.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
    {'reference':'containernetworking-plugins-1.4.0-1.1.rhaos4.15.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openshift-hyperkube'},
    {'reference':'cri-o-1.28.3-14.rhaos4.15.git33aabd8.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
    {'reference':'cri-o-1.28.3-14.rhaos4.15.git33aabd8.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
    {'reference':'cri-tools-1.28.0-3.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
    {'reference':'cri-tools-1.28.0-3.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
    {'reference':'ignition-2.16.2-2.rhaos4.15.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
    {'reference':'ignition-validate-2.16.2-2.rhaos4.15.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
    {'reference':'openshift-clients-4.15.0-202402070507.p0.g48dcf59.assembly.stream.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
    {'reference':'openshift-clients-4.15.0-202402070507.p0.g48dcf59.assembly.stream.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
    {'reference':'openshift-clients-redistributable-4.15.0-202402070507.p0.g48dcf59.assembly.stream.el8', 'cpu':'x86_64', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
    {'reference':'openshift-clients-redistributable-4.15.0-202402070507.p0.g48dcf59.assembly.stream.el9', 'cpu':'x86_64', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
    {'reference':'openshift-hyperkube-4.15.0-202402142009.p0.g6216ea1.assembly.stream.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
    {'reference':'openshift-hyperkube-4.15.0-202402142009.p0.g6216ea1.assembly.stream.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-4.4.1-21.rhaos4.15.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-4.4.1-21.rhaos4.15.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-catatonit-4.4.1-21.rhaos4.15.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-docker-4.4.1-21.rhaos4.15.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-docker-4.4.1-21.rhaos4.15.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-gvproxy-4.4.1-21.rhaos4.15.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-gvproxy-4.4.1-21.rhaos4.15.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-plugins-4.4.1-21.rhaos4.15.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-plugins-4.4.1-21.rhaos4.15.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-remote-4.4.1-21.rhaos4.15.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-remote-4.4.1-21.rhaos4.15.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-tests-4.4.1-21.rhaos4.15.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'podman-tests-4.4.1-21.rhaos4.15.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'3', 'exists_check':'openshift-hyperkube'},
    {'reference':'runc-1.1.12-1.rhaos4.15.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'4', 'exists_check':'openshift-hyperkube'},
    {'reference':'runc-1.1.12-1.rhaos4.15.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'4', 'exists_check':'openshift-hyperkube'},
    {'reference':'skopeo-1.11.2-21.1.rhaos4.15.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2', 'exists_check':'openshift-hyperkube'},
    {'reference':'skopeo-1.11.2-21.1.rhaos4.15.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2', 'exists_check':'openshift-hyperkube'},
    {'reference':'skopeo-tests-1.11.2-21.1.rhaos4.15.el8', 'release':'4', 'el_string':'el8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2', 'exists_check':'openshift-hyperkube'},
    {'reference':'skopeo-tests-1.11.2-21.1.rhaos4.15.el9', 'release':'4', 'el_string':'el9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2', 'exists_check':'openshift-hyperkube'}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var _cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  var exists_check = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = 'RHCOS' + package_array['release'];
  if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
  if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (reference &&
      _release &&
      (!exists_check || rpm_exists(release:_release, rpm:exists_check)) &&
      rpm_check(release:_release, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) flag++;
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      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, 'buildah / buildah-tests / butane / butane-redistributable / etc');
}