CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
81.9%
The remote Redhat Enterprise Linux 8 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.
runc: integer overflow in netlink bytemsg length field allows attacker to override netlink-based container configuration (CVE-2021-43784)
runc: incorrect handling of inheritable capabilities (CVE-2022-29162)
Programs which compile regular expressions from untrusted sources may be vulnerable to memory exhaustion or denial of service. The parsed regexp representation is linear in the size of the input, but in some cases the constant factor can be as high as 40,000, making relatively small regexps consume much larger amounts of memory. After fix, each regexp being parsed is limited to a 256 MB memory footprint. Regular expressions whose representation would use more space than that are rejected. Normal use of regular expressions is unaffected. (CVE-2022-41715)
Note that Nessus has not tested for these issues but has instead relied on the package manager’s report that the package is installed.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory runc. The text
# itself is copyright (C) Red Hat, Inc.
##
include('compat.inc');
if (description)
{
script_id(199610);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/07/12");
script_cve_id(
"CVE-2021-43784",
"CVE-2022-29162",
"CVE-2022-41715",
"CVE-2023-25809"
);
script_name(english:"RHEL 8 : runc (Unpatched Vulnerability)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat 8 host is affected by multiple vulnerabilities that will not be patched.");
script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has one or more packages installed that are affected by multiple
vulnerabilities that have been acknowledged by the vendor but will not be patched.
- runc: integer overflow in netlink bytemsg length field allows attacker to override netlink-based container
configuration (CVE-2021-43784)
- runc: incorrect handling of inheritable capabilities (CVE-2022-29162)
- Programs which compile regular expressions from untrusted sources may be vulnerable to memory exhaustion
or denial of service. The parsed regexp representation is linear in the size of the input, but in some
cases the constant factor can be as high as 40,000, making relatively small regexps consume much larger
amounts of memory. After fix, each regexp being parsed is limited to a 256 MB memory footprint. Regular
expressions whose representation would use more space than that are rejected. Normal use of regular
expressions is unaffected. (CVE-2022-41715)
Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package
is installed.");
script_set_attribute(attribute:"solution", value:
"The vendor has acknowledged the vulnerabilities but no solution has been provided. Refer to the vendor for remediation
guidance.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:P/I:P/A:P");
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-2021-43784");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2022-29162");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vendor_unpatched", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2021/12/06");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/06/03");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");
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:devspaces-rhel8-operator");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:oci-seccomp-bpf-hook");
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:sg-core-rhel8");
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", "redhat_repos.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("global_settings/vendor_unpatched"))
exit(0, "Unpatched Vulnerabilities Detection not active.");
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');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '8')) audit(AUDIT_OS_NOT, 'Red Hat 8.x', 'Red Hat ' + 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', cpu);
var appstreams = {
'container-tools:3.0': [
{
'pkgs': [
{'reference':'buildah', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'buildah', 'cves':['CVE-2022-41715']},
{'reference':'devspaces-rhel8-operator', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'devspaces-rhel8-operator', 'cves':['CVE-2022-41715']},
{'reference':'oci-seccomp-bpf-hook', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'oci-seccomp-bpf-hook', 'cves':['CVE-2022-41715']},
{'reference':'runc', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'runc', 'cves':['CVE-2021-43784', 'CVE-2022-29162', 'CVE-2023-25809']},
{'reference':'sg-core-rhel8', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'sg-core-rhel8', 'cves':['CVE-2022-41715']}
]
}
],
'container-tools:2.0': [
{
'pkgs': [
{'reference':'runc', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'runc', 'cves':['CVE-2021-43784', 'CVE-2022-29162']}
]
}
],
'container-tools:rhel8': [
{
'pkgs': [
{'reference':'runc', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'runc', 'cves':['CVE-2021-43784']}
]
}
]
};
var flag = 0;
var appstreams_found = 0;
foreach var module (keys(appstreams)) {
var appstream = NULL;
var appstream_name = NULL;
var appstream_version = NULL;
var appstream_split = split(module, sep:':', keep:FALSE);
if (!empty_or_null(appstream_split)) {
appstream_name = appstream_split[0];
appstream_version = appstream_split[1];
if (!empty_or_null(appstream_name)) appstream = get_one_kb_item('Host/RedHat/appstream/' + appstream_name);
}
if (!empty_or_null(appstream) && appstream_version == appstream || appstream_name == 'all') {
appstreams_found++;
foreach var module_array ( appstreams[module] ) {
var repo_relative_urls = NULL;
var enterprise_linux_flag = rhel_repo_urls_has_content_dist_rhel(repo_urls:repo_relative_urls);
foreach var package_array ( module_array['pkgs'] ) {
var unpatched_pkg = NULL;
var _release = NULL;
var sp = NULL;
var el_string = NULL;
var rpm_spec_vers_cmp = NULL;
var exists_check = NULL;
var cves = NULL;
if (!empty_or_null(package_array['unpatched_pkg'])) unpatched_pkg = package_array['unpatched_pkg'];
if (!empty_or_null(package_array['release'])) _release = 'RHEL' + package_array['release'];
if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
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['exists_check'])) exists_check = package_array['exists_check'];
if (!empty_or_null(package_array['cves'])) cves = package_array['cves'];
if (unpatched_pkg &&
_release &&
(!exists_check || rpm_exists(release:_release, rpm:exists_check)) &&
unpatched_package_exists(release:_release, package:unpatched_pkg, cves: cves)) flag++;
}
}
}
}
if (!appstreams_found) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module container-tools:2.0 / container-tools:3.0 / container-tools:rhel8');
if (flag)
{
var extra = NULL;
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : unpatched_packages_report()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'buildah / devspaces-rhel8-operator / oci-seccomp-bpf-hook / runc / etc');
}
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
81.9%