The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2021:5171 advisory.
This affects the package ini before 1.3.6. If an attacker submits a malicious INI file to an application that parses it with ini.parse, they will pollute the prototype on the application. This can be exploited further depending on the context. (CVE-2020-7788)
This affects the package glob-parent before 5.1.2. The enclosure regex used to check for strings ending in enclosure containing path separator. (CVE-2020-28469)
ansi-regex is vulnerable to Inefficient Regular Expression Complexity (CVE-2021-3807)
json-schema is vulnerable to Improperly Controlled Modification of Object Prototype Attributes (‘Prototype Pollution’) (CVE-2021-3918)
The parser in accepts requests with a space (SP) right after the header name before the colon. This can lead to HTTP Request Smuggling (HRS) in llhttp < v2.1.4 and < v6.0.6. (CVE-2021-22959)
The parse function in llhttp < 2.1.4 and < 6.0.6. ignores chunk extensions when parsing the body of chunked requests. This leads to HTTP Request Smuggling (HRS) under certain conditions. (CVE-2021-22960)
The normalize-url package before 4.5.1, 5.x before 5.3.1, and 6.x before 6.0.1 for Node.js has a ReDoS (regular expression denial of service) issue because it has exponential performance for data: URLs.
(CVE-2021-33502)
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-2021:5171.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(158872);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/06");
script_cve_id(
"CVE-2020-7788",
"CVE-2020-28469",
"CVE-2021-3807",
"CVE-2021-3918",
"CVE-2021-22959",
"CVE-2021-22960",
"CVE-2021-33502"
);
script_xref(name:"ALSA", value:"2021:5171");
script_xref(name:"IAVB", value:"2021-B-0059-S");
script_name(english:"AlmaLinux 8 : nodejs:16 (ALSA-2021:5171)");
script_set_attribute(attribute:"synopsis", value:
"The remote AlmaLinux host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the
ALSA-2021:5171 advisory.
- This affects the package ini before 1.3.6. If an attacker submits a malicious INI file to an application
that parses it with ini.parse, they will pollute the prototype on the application. This can be exploited
further depending on the context. (CVE-2020-7788)
- This affects the package glob-parent before 5.1.2. The enclosure regex used to check for strings ending in
enclosure containing path separator. (CVE-2020-28469)
- ansi-regex is vulnerable to Inefficient Regular Expression Complexity (CVE-2021-3807)
- json-schema is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype
Pollution') (CVE-2021-3918)
- The parser in accepts requests with a space (SP) right after the header name before the colon. This can
lead to HTTP Request Smuggling (HRS) in llhttp < v2.1.4 and < v6.0.6. (CVE-2021-22959)
- The parse function in llhttp < 2.1.4 and < 6.0.6. ignores chunk extensions when parsing the body of
chunked requests. This leads to HTTP Request Smuggling (HRS) under certain conditions. (CVE-2021-22960)
- The normalize-url package before 4.5.1, 5.x before 5.3.1, and 6.x before 6.0.1 for Node.js has a ReDoS
(regular expression denial of service) issue because it has exponential performance for data: URLs.
(CVE-2021-33502)
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-2021-5171.html");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
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:F/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:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-3918");
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:"2020/12/11");
script_set_attribute(attribute:"patch_publication_date", value:"2021/12/15");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/03/12");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:nodejs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:nodejs-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:nodejs-docs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:nodejs-full-i18n");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:nodejs-nodemon");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:nodejs-packaging");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:npm");
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) 2022-2023 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/nodejs');
if (isnull(module_ver)) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module nodejs:16');
if ('16' >!< module_ver) audit(AUDIT_PACKAGE_NOT_AFFECTED, 'Module nodejs:' + module_ver);
var appstreams = {
'nodejs:16': [
{'reference':'nodejs-16.13.1-3.module_el8.5.0+2605+45d748af', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'nodejs-devel-16.13.1-3.module_el8.5.0+2605+45d748af', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'nodejs-docs-16.13.1-3.module_el8.5.0+2605+45d748af', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'nodejs-full-i18n-16.13.1-3.module_el8.5.0+2605+45d748af', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'nodejs-nodemon-2.0.15-1.module_el8.5.0+2605+45d748af', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'nodejs-packaging-25-1.module_el8.5.0+2605+45d748af', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'npm-8.1.2-1.16.13.1.3.module_el8.5.0+2605+45d748af', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'}
]
};
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 nodejs:16');
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, 'nodejs / nodejs-devel / nodejs-docs / nodejs-full-i18n / etc');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28469
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7788
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22959
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22960
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33502
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3807
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3918
errata.almalinux.org/8/ALSA-2021-5171.html