10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.006 Low
EPSS
Percentile
77.9%
The remote AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2021:2583 advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from
# AlmaLinux Security Advisory ALSA-2021:2583.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(157659);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/02/14");
script_cve_id("CVE-2020-14343");
script_xref(name:"ALSA", value:"2021:2583");
script_xref(name:"IAVA", value:"2021-A-0463");
script_name(english:"AlmaLinux 8 : python38:3.8 and python38-devel:3.8 (ALSA-2021:2583)");
script_set_attribute(attribute:"synopsis", value:
"The remote AlmaLinux host is missing a security update.");
script_set_attribute(attribute:"description", value:
"The remote AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the
ALSA-2021:2583 advisory.
- A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to
arbitrary code execution when it processes untrusted YAML files through the full_load method or with the
FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this
flaw. This flaw allows an attacker to execute arbitrary code on the system by abusing the
python/object/new constructor. This flaw is due to an incomplete fix for CVE-2020-1747. (CVE-2020-14343)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://errata.almalinux.org/8/ALSA-2021-2583.html");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
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-2020-14343");
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:"2021/01/21");
script_set_attribute(attribute:"patch_publication_date", value:"2021/06/29");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/02/09");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python38-atomicwrites");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python38-attrs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python38-more-itertools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python38-packaging");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python38-pluggy");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python38-py");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python38-pyparsing");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python38-pytest");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:python38-wcwidth");
script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:8");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Alma Linux Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/AlmaLinux/release", "Host/AlmaLinux/rpm-list", "Host/cpu");
exit(0);
}
include('audit.inc');
include('global_settings.inc');
include('misc_func.inc');
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var release = get_kb_item('Host/AlmaLinux/release');
if (isnull(release) || 'AlmaLinux' >!< release) audit(AUDIT_OS_NOT, 'AlmaLinux');
var os_ver = pregmatch(pattern: "AlmaLinux release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'AlmaLinux');
var os_ver = os_ver[1];
if (! preg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'AlmaLinux 8.x', 'AlmaLinux ' + os_ver);
if (!get_kb_item('Host/AlmaLinux/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'AlmaLinux', cpu);
var module_ver = get_kb_item('Host/AlmaLinux/appstream/python38-devel');
if (isnull(module_ver)) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module python38-devel:3.8');
if ('3.8' >!< module_ver) audit(AUDIT_PACKAGE_NOT_AFFECTED, 'Module python38-devel:' + module_ver);
var appstreams = {
'python38-devel:3.8': [
{'reference':'python38-atomicwrites-1.3.0-8.module_el8.4.0+2510+cb4d423d', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python38-attrs-19.3.0-3.module_el8.4.0+2510+cb4d423d', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python38-more-itertools-7.2.0-5.module_el8.4.0+2510+cb4d423d', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python38-packaging-19.2-3.module_el8.4.0+2510+cb4d423d', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python38-pluggy-0.13.0-3.module_el8.4.0+2510+cb4d423d', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python38-py-1.8.0-8.module_el8.4.0+2510+cb4d423d', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python38-pyparsing-2.4.5-3.module_el8.4.0+2510+cb4d423d', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python38-pytest-4.6.6-3.module_el8.4.0+2510+cb4d423d', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python38-wcwidth-0.1.7-16.module_el8.4.0+2510+cb4d423d', 'release':'8', 'rpm_spec_vers_cmp':TRUE}
]
};
var flag = 0;
var appstreams_found = 0;
foreach 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/AlmaLinux/appstream/' + appstream_name);
}
if (!empty_or_null(appstream) && appstream_version == appstream || appstream_name == 'all') {
appstreams_found++;
foreach package_array ( appstreams[module] ) {
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 = 'Alma-' + 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 && (!exists_check || rpm_exists(release:release, rpm:exists_check))) {
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 (!appstreams_found) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module python38-devel:3.8');
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, 'python38-atomicwrites / python38-attrs / python38-more-itertools / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
alma | linux | python38-atomicwrites | p-cpe:/a:alma:linux:python38-atomicwrites |
alma | linux | python38-attrs | p-cpe:/a:alma:linux:python38-attrs |
alma | linux | python38-more-itertools | p-cpe:/a:alma:linux:python38-more-itertools |
alma | linux | python38-packaging | p-cpe:/a:alma:linux:python38-packaging |
alma | linux | python38-pluggy | p-cpe:/a:alma:linux:python38-pluggy |
alma | linux | python38-py | p-cpe:/a:alma:linux:python38-py |
alma | linux | python38-pyparsing | p-cpe:/a:alma:linux:python38-pyparsing |
alma | linux | python38-pytest | p-cpe:/a:alma:linux:python38-pytest |
alma | linux | python38-wcwidth | p-cpe:/a:alma:linux:python38-wcwidth |
alma | linux | 8 | cpe:/o:alma:linux:8 |
10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.006 Low
EPSS
Percentile
77.9%