CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
16.3%
The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2024:1688 advisory.
The Node.js Permission Model does not clarify in the documentation that wildcards should be only used as the last character of a file path. For example: --allow-fs-read=/home/node/.ssh/*.pub
will ignore pub
and give access to everything after .ssh/
. This misleading documentation affects all users using the experimental permission model in Node.js 20 and Node.js 21. Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js. (CVE-2024-21890)
Node.js depends on multiple built-in utility functions to normalize paths provided to node:fs functions, which can be overwitten with user-defined implementations leading to filesystem permission model bypass through path traversal attack. This vulnerability affects all users using the experimental permission model in Node.js 20 and Node.js 21. Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js. (CVE-2024-21891)
On Linux, Node.js ignores certain environment variables if those may have been set by an unprivileged user while the process is running with elevated privileges with the only exception of CAP_NET_BIND_SERVICE. Due to a bug in the implementation of this exception, Node.js incorrectly applies this exception even when certain other capabilities have been set. This allows unprivileged users to inject code that inherits the process’s elevated privileges. (CVE-2024-21892)
The permission model protects itself against path traversal attacks by calling path.resolve() on any paths given by the user. If the path is to be treated as a Buffer, the implementation uses Buffer.from() to obtain a Buffer from the result of path.resolve(). By monkey-patching Buffer internals, namely, Buffer.prototype.utf8Write, the application can modify the result of path.resolve(), which leads to a path traversal vulnerability. This vulnerability affects all users using the experimental permission model in Node.js 20 and Node.js 21. Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js. (CVE-2024-21896)
setuid() does not affect libuv’s internal io_uring operations if initialized before the call to setuid().
This allows the process to perform privileged operations despite presumably having dropped such privileges through a call to setuid(). This vulnerability affects all users using version greater or equal than Node.js 18.18.0, Node.js 20.4.0 and Node.js 21. (CVE-2024-22017)
A vulnerability in Node.js HTTP servers allows an attacker to send a specially crafted HTTP request with chunked encoding, leading to resource exhaustion and denial of service (DoS). The server reads an unbounded number of bytes from a single connection, exploiting the lack of limitations on chunk extension bytes. The issue can cause CPU and network bandwidth exhaustion, bypassing standard safeguards like timeouts and body size limits. (CVE-2024-22019)
A vulnerability in the privateDecrypt() API of the crypto library, allowed a covert timing side-channel during PKCS#1 v1.5 padding error handling. The vulnerability revealed significant timing differences in decryption for valid and invalid ciphertexts. This poses a serious threat as attackers could remotely exploit the vulnerability to decrypt captured RSA ciphertexts or forge signatures, especially in scenarios involving API endpoints processing Json Web Encryption messages. Impacts: Thank you, to hkario for reporting this vulnerability and thank you Michael Dawson for fixing it. (CVE-2023-46809)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# AlmaLinux Security Advisory ALSA-2024:1688.
##
include('compat.inc');
if (description)
{
script_id(193158);
script_version("1.0");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/10");
script_cve_id(
"CVE-2023-46809",
"CVE-2024-21890",
"CVE-2024-21891",
"CVE-2024-21892",
"CVE-2024-21896",
"CVE-2024-22017",
"CVE-2024-22019"
);
script_xref(name:"ALSA", value:"2024:1688");
script_name(english:"AlmaLinux 9 : nodejs:20 (ALSA-2024:1688)");
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 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the
ALSA-2024:1688 advisory.
- The Node.js Permission Model does not clarify in the documentation that wildcards should be only used as
the last character of a file path. For example: ``` --allow-fs-read=/home/node/.ssh/*.pub ``` will ignore
`pub` and give access to everything after `.ssh/`. This misleading documentation affects all users using
the experimental permission model in Node.js 20 and Node.js 21. Please note that at the time this CVE was
issued, the permission model is an experimental feature of Node.js. (CVE-2024-21890)
- Node.js depends on multiple built-in utility functions to normalize paths provided to node:fs functions,
which can be overwitten with user-defined implementations leading to filesystem permission model bypass
through path traversal attack. This vulnerability affects all users using the experimental permission
model in Node.js 20 and Node.js 21. Please note that at the time this CVE was issued, the permission model
is an experimental feature of Node.js. (CVE-2024-21891)
- On Linux, Node.js ignores certain environment variables if those may have been set by an unprivileged user
while the process is running with elevated privileges with the only exception of CAP_NET_BIND_SERVICE. Due
to a bug in the implementation of this exception, Node.js incorrectly applies this exception even when
certain other capabilities have been set. This allows unprivileged users to inject code that inherits the
process's elevated privileges. (CVE-2024-21892)
- The permission model protects itself against path traversal attacks by calling path.resolve() on any paths
given by the user. If the path is to be treated as a Buffer, the implementation uses Buffer.from() to
obtain a Buffer from the result of path.resolve(). By monkey-patching Buffer internals, namely,
Buffer.prototype.utf8Write, the application can modify the result of path.resolve(), which leads to a path
traversal vulnerability. This vulnerability affects all users using the experimental permission model in
Node.js 20 and Node.js 21. Please note that at the time this CVE was issued, the permission model is an
experimental feature of Node.js. (CVE-2024-21896)
- setuid() does not affect libuv's internal io_uring operations if initialized before the call to setuid().
This allows the process to perform privileged operations despite presumably having dropped such privileges
through a call to setuid(). This vulnerability affects all users using version greater or equal than
Node.js 18.18.0, Node.js 20.4.0 and Node.js 21. (CVE-2024-22017)
- A vulnerability in Node.js HTTP servers allows an attacker to send a specially crafted HTTP request with
chunked encoding, leading to resource exhaustion and denial of service (DoS). The server reads an
unbounded number of bytes from a single connection, exploiting the lack of limitations on chunk extension
bytes. The issue can cause CPU and network bandwidth exhaustion, bypassing standard safeguards like
timeouts and body size limits. (CVE-2024-22019)
- A vulnerability in the privateDecrypt() API of the crypto library, allowed a covert timing side-channel
during PKCS#1 v1.5 padding error handling. The vulnerability revealed significant timing differences in
decryption for valid and invalid ciphertexts. This poses a serious threat as attackers could remotely
exploit the vulnerability to decrypt captured RSA ciphertexts or forge signatures, especially in scenarios
involving API endpoints processing Json Web Encryption messages. Impacts: Thank you, to hkario for
reporting this vulnerability and thank you Michael Dawson for fixing it. (CVE-2023-46809)
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://errata.almalinux.org/9/ALSA-2024-1688.html");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:N");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-21892");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2024-21896");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_cwe_id(1059, 208, 22, 269, 385, 400, 94);
script_set_attribute(attribute:"vuln_publication_date", value:"2024/02/14");
script_set_attribute(attribute:"patch_publication_date", value:"2024/04/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/04/10");
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:nodejs-packaging-bundler");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:npm");
script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9");
script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::appstream");
script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::baseos");
script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::crb");
script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::highavailability");
script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::nfv");
script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::realtime");
script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::resilientstorage");
script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::sap");
script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::sap_hana");
script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::supplementary");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Alma Linux 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/AlmaLinux/release", "Host/AlmaLinux/rpm-list", "Host/cpu");
exit(0);
}
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/AlmaLinux/release');
if (isnull(os_release) || 'AlmaLinux' >!< os_release) audit(AUDIT_OS_NOT, 'AlmaLinux');
var os_ver = pregmatch(pattern: "AlmaLinux release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'AlmaLinux');
os_ver = os_ver[1];
if (! preg(pattern:"^9([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'AlmaLinux 9.x', 'AlmaLinux ' + os_ver);
if (!get_kb_item('Host/AlmaLinux/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && '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:20');
if ('20' >!< module_ver) audit(AUDIT_PACKAGE_NOT_AFFECTED, 'Module nodejs:' + module_ver);
var appstreams = {
'nodejs:20': [
{'reference':'nodejs-20.11.1-1.module_el8.9.0+3775+d8460d35', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'nodejs-20.11.1-1.module_el8.9.0+3775+d8460d35', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'nodejs-devel-20.11.1-1.module_el8.9.0+3775+d8460d35', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'nodejs-devel-20.11.1-1.module_el8.9.0+3775+d8460d35', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'nodejs-docs-20.11.1-1.module_el8.9.0+3775+d8460d35', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'nodejs-full-i18n-20.11.1-1.module_el8.9.0+3775+d8460d35', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'nodejs-full-i18n-20.11.1-1.module_el8.9.0+3775+d8460d35', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'nodejs-nodemon-3.0.1-1.module_el9.3.0+47+c33bc288', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'nodejs-packaging-2021.06-4.module_el9.3.0+88+29afeaa2', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'nodejs-packaging-bundler-2021.06-4.module_el9.3.0+88+29afeaa2', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'npm-10.2.4-1.20.11.1.1.module_el8.9.0+3775+d8460d35', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'npm-10.2.4-1.20.11.1.1.module_el8.9.0+3775+d8460d35', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'}
]
};
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/AlmaLinux/appstream/' + appstream_name);
}
if (!empty_or_null(appstream) && appstream_version == appstream || appstream_name == 'all') {
appstreams_found++;
foreach var 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:20');
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-2023-46809
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-21890
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-21891
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-21892
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-21896
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-22017
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-22019
errata.almalinux.org/9/ALSA-2024-1688.html
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
16.3%