Oracle Linux 8 : buildah (ELSA-2023-12578)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2023-12578.
##

include('compat.inc');

if (description)
{
  script_id(178580);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/20");

  script_cve_id("CVE-2023-25809", "CVE-2023-27561", "CVE-2023-28642");

  script_name(english:"Oracle Linux 8 : buildah (ELSA-2023-12578)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Oracle Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the
ELSA-2023-12578 advisory.

  - runc is a CLI tool for spawning and running containers according to the OCI specification. It was found
    that AppArmor can be bypassed when `/proc` inside the container is symlinked with a specific mount
    configuration. This issue has been fixed in runc version 1.1.5, by prohibiting symlinked `/proc`. See PR
    #3785 for details. users are advised to upgrade. Users unable to upgrade should avoid using an untrusted
    container image. (CVE-2023-28642)

  - runc is a CLI tool for spawning and running containers according to the OCI specification. In affected
    versions it was found that rootless runc makes `/sys/fs/cgroup` writable in following conditons: 1. when
    runc is executed inside the user namespace, and the `config.json` does not specify the cgroup namespace to
    be unshared (e.g.., `(docker|podman|nerdctl) run --cgroupns=host`, with Rootless Docker/Podman/nerdctl) or
    2. when runc is executed outside the user namespace, and `/sys` is mounted with `rbind, ro` (e.g., `runc
    spec --rootless`; this condition is very rare). A container may gain the write access to user-owned cgroup
    hierarchy `/sys/fs/cgroup/user.slice/...` on the host . Other users's cgroup hierarchies are not affected.
    Users are advised to upgrade to version 1.1.5. Users unable to upgrade may unshare the cgroup namespace
    (`(docker|podman|nerdctl) run --cgroupns=private)`. This is the default behavior of Docker/Podman/nerdctl
    on cgroup v2 hosts. or add `/sys/fs/cgroup` to `maskedPaths`. (CVE-2023-25809)

  - runc through 1.1.4 has Incorrect Access Control leading to Escalation of Privileges, related to
    libcontainer/rootfs_linux.go. To exploit this, an attacker must be able to spawn two containers with
    custom volume-mount configurations, and be able to run custom images. NOTE: this issue exists because of a
    CVE-2019-19921 regression. (CVE-2023-27561)

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://linux.oracle.com/errata/ELSA-2023-12578.html");
  script_set_attribute(attribute:"solution", value:
"Update the affected 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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-28642");

  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:"2023/03/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/07/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/07/20");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:linux:8:8:appstream_base");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:linux:8::appstream");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:linux:8::appstream_developer");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:aardvark-dns");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:buildah");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:buildah-tests");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:cockpit-podman");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:conmon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:container-selinux");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:containernetworking-plugins");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:containers-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:crit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:criu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:criu-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:criu-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:crun");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:fuse-overlayfs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libslirp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libslirp-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:netavark");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:oci-seccomp-bpf-hook");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:podman");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:podman-catatonit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:podman-docker");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:podman-gvproxy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:podman-plugins");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:podman-remote");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:podman-tests");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python3-criu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python3-podman");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:runc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:skopeo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:skopeo-tests");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:slirp4netns");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:udica");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/local_checks_enabled");

  exit(0);
}


include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item('Host/OracleLinux')) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_release = get_kb_item("Host/RedHat/release");
if (isnull(os_release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:os_release)) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Oracle Linux');
os_ver = os_ver[1];
if (! preg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Oracle Linux 8', 'Oracle Linux ' + 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$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);

var pkgs = [
    {'reference':'cockpit-podman-46-1.module+el8.8.0+20984+ab6ce66c', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
    {'reference':'container-selinux-2.199.0-1.module+el8.8.0+20984+ab6ce66c', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'podman-docker-4.0.2-20.module+el8.8.0+20984+ab6ce66c', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'python3-podman-4.0.0-1.module+el8.8.0+20984+ab6ce66c', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'udica-0.2.6-3.module+el8.8.0+20984+ab6ce66c', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'aardvark-dns-1.0.1-37.0.1.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'buildah-1.24.6-5.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
    {'reference':'buildah-tests-1.24.6-5.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
    {'reference':'conmon-2.1.4-1.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'containernetworking-plugins-1.1.1-2.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
    {'reference':'containers-common-1-37.0.1.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'crit-3.15-3.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'criu-3.15-3.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'criu-devel-3.15-3.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'criu-libs-3.15-3.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'crun-1.6-1.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'fuse-overlayfs-1.9-1.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libslirp-4.4.0-1.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libslirp-devel-4.4.0-1.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'netavark-1.0.1-37.0.1.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'oci-seccomp-bpf-hook-1.2.5-2.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'podman-4.0.2-20.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'podman-catatonit-4.0.2-20.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'podman-gvproxy-4.0.2-20.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'podman-plugins-4.0.2-20.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'podman-remote-4.0.2-20.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'podman-tests-4.0.2-20.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'python3-criu-3.15-3.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'runc-1.1.4-1.0.1.module+el8.8.0+21118+db7590d7', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
    {'reference':'skopeo-1.6.2-6.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'skopeo-tests-1.6.2-6.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'slirp4netns-1.1.8-2.module+el8.8.0+20984+ab6ce66c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'aardvark-dns-1.0.1-37.0.1.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'buildah-1.24.6-5.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
    {'reference':'buildah-tests-1.24.6-5.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
    {'reference':'conmon-2.1.4-1.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'containernetworking-plugins-1.1.1-2.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
    {'reference':'containers-common-1-37.0.1.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'crit-3.15-3.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'criu-3.15-3.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'criu-devel-3.15-3.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'criu-libs-3.15-3.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'crun-1.6-1.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'fuse-overlayfs-1.9-1.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libslirp-4.4.0-1.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libslirp-devel-4.4.0-1.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'netavark-1.0.1-37.0.1.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'oci-seccomp-bpf-hook-1.2.5-2.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'podman-4.0.2-20.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'podman-catatonit-4.0.2-20.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'podman-gvproxy-4.0.2-20.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'podman-plugins-4.0.2-20.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'podman-remote-4.0.2-20.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'podman-tests-4.0.2-20.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'python3-criu-3.15-3.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'runc-1.1.4-1.0.1.module+el8.8.0+21118+db7590d7', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
    {'reference':'skopeo-1.6.2-6.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'skopeo-tests-1.6.2-6.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
    {'reference':'slirp4netns-1.1.8-2.module+el8.8.0+20984+ab6ce66c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  var allowmaj = NULL;
  var exists_check = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = 'EL' + package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  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['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (reference && _release) {
    if (exists_check) {
        if (rpm_exists(release:_release, rpm:exists_check) && rpm_check(release:_release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
    } else {
        if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) 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, 'aardvark-dns / buildah / buildah-tests / etc');
}