7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.6 Medium
AI Score
Confidence
Low
0.0004 Low
EPSS
Percentile
15.5%
The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-1503 advisory.
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)
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)
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)
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 descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2024-1503.
##
include('compat.inc');
if (description)
{
script_id(192589);
script_version("1.0");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/26");
script_cve_id("CVE-2023-46809", "CVE-2024-21892", "CVE-2024-22019");
script_name(english:"Oracle Linux 9 : nodejs:18 (ELSA-2024-1503)");
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 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the
ELSA-2024-1503 advisory.
- 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)
- 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)
- 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)
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-2024-1503.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:H/PR:L/UI:N/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:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2024/02/14");
script_set_attribute(attribute:"patch_publication_date", value:"2024/03/26");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/03/26");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:linux:9:1:appstream_base");
script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:linux:9:2:appstream_base");
script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:linux:9:2:appstream_patch");
script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:linux:9:3:appstream_base");
script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:linux:9::appstream");
script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:linux:9::appstream_developer");
script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:9");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:nodejs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:nodejs-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:nodejs-docs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:nodejs-full-i18n");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:nodejs-nodemon");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:nodejs-packaging");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:nodejs-packaging-bundler");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:npm");
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) 2024 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:"^9([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Oracle Linux 9', 'Oracle Linux ' + os_ver);
if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);
var pkgs = [
{'reference':'nodejs-18.19.1-1.module+el9.3.0+90193+90aa0dae', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'nodejs-devel-18.19.1-1.module+el9.3.0+90193+90aa0dae', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'nodejs-docs-18.19.1-1.module+el9.3.0+90193+90aa0dae', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'nodejs-full-i18n-18.19.1-1.module+el9.3.0+90193+90aa0dae', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'nodejs-nodemon-3.0.1-1.module+el9.3.0+90167+01064547', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'nodejs-packaging-2021.06-4.module+el9.1.0+20762+f52d7401', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'nodejs-packaging-bundler-2021.06-4.module+el9.1.0+20762+f52d7401', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'npm-10.2.4-1.18.19.1.1.module+el9.3.0+90193+90aa0dae', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'nodejs-18.19.1-1.module+el9.3.0+90193+90aa0dae', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'nodejs-devel-18.19.1-1.module+el9.3.0+90193+90aa0dae', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'nodejs-full-i18n-18.19.1-1.module+el9.3.0+90193+90aa0dae', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
{'reference':'npm-10.2.4-1.18.19.1.1.module+el9.3.0+90193+90aa0dae', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'}
];
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_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 / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
oracle | linux | 9 | cpe:/a:oracle:linux:9:1:appstream_base |
oracle | linux | 9 | cpe:/a:oracle:linux:9:2:appstream_base |
oracle | linux | 9 | cpe:/a:oracle:linux:9:2:appstream_patch |
oracle | linux | 9 | cpe:/a:oracle:linux:9:3:appstream_base |
oracle | linux | 9 | cpe:/a:oracle:linux:9::appstream |
oracle | linux | 9 | cpe:/a:oracle:linux:9::appstream_developer |
oracle | linux | 9 | cpe:/o:oracle:linux:9 |
oracle | linux | nodejs | p-cpe:/a:oracle:linux:nodejs |
oracle | linux | nodejs-devel | p-cpe:/a:oracle:linux:nodejs-devel |
oracle | linux | nodejs-docs | p-cpe:/a:oracle:linux:nodejs-docs |
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.6 Medium
AI Score
Confidence
Low
0.0004 Low
EPSS
Percentile
15.5%