Vulnerabilities > CVE-2018-7164 - Resource Exhaustion vulnerability in Nodejs Node.Js
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
Node.js versions 9.7.0 and later and 10.x are vulnerable and the severity is MEDIUM. A bug introduced in 9.7.0 increases the memory consumed when reading from the network into JavaScript using the net.Socket object directly as a stream. An attacker could use this cause a denial of service by sending tiny chunks of data in short succession. This vulnerability was restored by reverting to the prior behaviour.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- XML Ping of the Death An attacker initiates a resource depletion attack where a large number of small XML messages are delivered at a sufficiently rapid rate to cause a denial of service or crash of the target. Transactions such as repetitive SOAP transactions can deplete resources faster than a simple flooding attack because of the additional resources used by the SOAP protocol and the resources necessary to process SOAP messages. The transactions used are immaterial as long as they cause resource utilization on the target. In other words, this is a normal flooding attack augmented by using messages that will require extra processing on the target.
- XML Entity Expansion An attacker submits an XML document to a target application where the XML document uses nested entity expansion to produce an excessively large output XML. XML allows the definition of macro-like structures that can be used to simplify the creation of complex structures. However, this capability can be abused to create excessive demands on a processor's CPU and memory. A small number of nested expansions can result in an exponential growth in demands on memory.
- Inducing Account Lockout An attacker leverages the security functionality of the system aimed at thwarting potential attacks to launch a denial of service attack against a legitimate system user. Many systems, for instance, implement a password throttling mechanism that locks an account after a certain number of incorrect log in attempts. An attacker can leverage this throttling mechanism to lock a legitimate user out of their own account. The weakness that is being leveraged by an attacker is the very security feature that has been put in place to counteract attacks.
- Violating Implicit Assumptions Regarding XML Content (aka XML Denial of Service (XDoS)) XML Denial of Service (XDoS) can be applied to any technology that utilizes XML data. This is, of course, most distributed systems technology including Java, .Net, databases, and so on. XDoS is most closely associated with web services, SOAP, and Rest, because remote service requesters can post malicious XML payloads to the service provider designed to exhaust the service provider's memory, CPU, and/or disk space. The main weakness in XDoS is that the service provider generally must inspect, parse, and validate the XML messages to determine routing, workflow, security considerations, and so on. It is exactly these inspection, parsing, and validation routines that XDoS targets. There are three primary attack vectors that XDoS can navigate Target CPU through recursion: attacker creates a recursive payload and sends to service provider Target memory through jumbo payloads: service provider uses DOM to parse XML. DOM creates in memory representation of XML document, but when document is very large (for example, north of 1 Gb) service provider host may exhaust memory trying to build memory objects. XML Ping of death: attack service provider with numerous small files that clog the system. All of the above attacks exploit the loosely coupled nature of web services, where the service provider has little to no control over the service requester and any messages the service requester sends.
Nessus
NASL family Misc. NASL id NODEJS_2018_JUL.NASL description The version of Node.js installed on the remote host is 6.x prior to 6.14.3, 8.x prior to 8.11.3, 9.x prior to 9.11.2 or 10.x prior to 10.4.1. It, therefore, is affected by multiple vulnerabilities. Note that Nessus has not tested for these issues but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 118957 published 2018-11-14 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118957 title Node.js multiple vulnerabilities (July 2018 Security Releases). code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(118957); script_version("1.3"); script_cvs_date("Date: 2019/11/04"); script_cve_id( "CVE-2018-7161", "CVE-2018-7162", "CVE-2018-7164", "CVE-2018-7167", "CVE-2018-1000168" ); script_bugtraq_id(103952, 104463, 104468); script_name(english:"Node.js multiple vulnerabilities (July 2018 Security Releases)."); script_summary(english:"Checks the Node.js version."); script_set_attribute(attribute:"synopsis", value: "Node.js - JavaScript run-time environment is affected by multiple vulnerabilities."); script_set_attribute(attribute:"description", value: "The version of Node.js installed on the remote host is 6.x prior to 6.14.3, 8.x prior to 8.11.3, 9.x prior to 9.11.2 or 10.x prior to 10.4.1. It, therefore, is affected by multiple vulnerabilities. Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number."); # https://nodejs.org/en/blog/vulnerability/june-2018-security-releases/ script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a072ed2c"); script_set_attribute(attribute:"solution", value: "Upgrade Node.js to a recommended by vendor version or above"); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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:N/I:N/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-2018-7162"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"agent", value:"all"); script_set_attribute(attribute:"vuln_publication_date", value:"2018/06/12"); script_set_attribute(attribute:"patch_publication_date", value:"2018/06/12"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/11/14"); script_set_attribute(attribute:"potential_vulnerability", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"cpe:/a:nodejs:node.js"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"Misc."); script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("os_fingerprint.nasl", "nodejs_win_installed.nbin"); script_require_keys("Settings/ParanoidReport"); script_require_ports("installed_sw/Node.js"); exit(0); } include("vcf.inc"); if (report_paranoia < 2) audit(AUDIT_PARANOID); win_local = FALSE; os = get_kb_item_or_exit("Host/OS"); if ("windows" >< tolower(os)) win_local = TRUE; app_info = vcf::get_app_info(app:"Node.js", win_local:win_local); vcf::check_granularity(app_info:app_info, sig_segments:3); constraints = [ { "min_version" : "6.0.0", "fixed_version" : "6.14.3" }, { "min_version" : "8.0.0", "fixed_version" : "8.11.3" }, { "min_version" : "9.0.0", "fixed_version" : "9.11.2" }, { "min_version" : "10.0.0", "fixed_version" : "10.4.1" } ]; vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);
NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_45B8E2EB705611E88FAB63CA6E0E13A2.NASL description Node.js reports : Denial of Service Vulnerability in HTTP/2 (CVE-2018-7161) All versions of 8.x and later are vulnerable and the severity is HIGH. An attacker can cause a denial of service (DoS) by causing a node server providing an http2 server to crash. This can be accomplished by interacting with the http2 server in a manner that triggers a cleanup bug where objects are used in native code after they are no longer available. This has been addressed by updating the http2 implementation. Thanks to Jordan Zebor at F5 Networks for reporting this issue. Denial of Service, nghttp2 dependency (CVE-2018-1000168) All versions of 9.x and later are vulnerable and the severity is HIGH. Under certain conditions, a malicious client can trigger an uninitialized read (and a subsequent segfault) by sending a malformed ALTSVC frame. This has been addressed through an by updating nghttp2. Denial of Service Vulnerability in TLS (CVE-2018-7162) All versions of 9.x and later are vulnerable and the severity is HIGH. An attacker can cause a denial of service (DoS) by causing a node process which provides an http server supporting TLS server to crash. This can be accomplished by sending duplicate/unexpected messages during the handshake. This vulnerability has been addressed by updating the TLS implementation. Thanks to Jordan Zebor at F5 Networks all of his help investigating this issue with the Node.js team. Memory exhaustion DoS on v9.x (CVE-2018-7164) Versions 9.7.0 and later are vulnerable and the severity is MEDIUM. A bug introduced in 9.7.0 increases the memory consumed when reading from the network into JavaScript using the net.Socket object directly as a stream. An attacker could use this cause a denial of service by sending tiny chunks of data in short succession. This vulnerability was restored by reverting to the prior behaviour. Calls to Buffer.fill() and/or Buffer.alloc() may hang (CVE-2018-7167) Calling Buffer.fill() or Buffer.alloc() with some parameters can lead to a hang which could result in a Denial of Service. In order to address this vulnerability, the implementations of Buffer.alloc() and Buffer.fill() were updated so that they zero fill instead of hanging in these cases. last seen 2020-06-01 modified 2020-06-02 plugin id 110539 published 2018-06-15 reporter This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110539 title FreeBSD : node.js -- multiple vulnerabilities (45b8e2eb-7056-11e8-8fab-63ca6e0e13a2) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from the FreeBSD VuXML database : # # Copyright 2003-2018 Jacques Vidrine and contributors # # Redistribution and use in source (VuXML) and 'compiled' forms (SGML, # HTML, PDF, PostScript, RTF and so forth) with or without modification, # are permitted provided that the following conditions are met: # 1. Redistributions of source code (VuXML) must retain the above # copyright notice, this list of conditions and the following # disclaimer as the first lines of this file unmodified. # 2. Redistributions in compiled form (transformed to other DTDs, # published online in any format, converted to PDF, PostScript, # RTF and other formats) must reproduce the above copyright # notice, this list of conditions and the following disclaimer # in the documentation and/or other materials provided with the # distribution. # # THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, # OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT # OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR # BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE # OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION, # EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # include("compat.inc"); if (description) { script_id(110539); script_version("1.4"); script_cvs_date("Date: 2018/11/10 11:49:46"); script_cve_id("CVE-2018-1000168", "CVE-2018-7161", "CVE-2018-7162", "CVE-2018-7164", "CVE-2018-7167"); script_name(english:"FreeBSD : node.js -- multiple vulnerabilities (45b8e2eb-7056-11e8-8fab-63ca6e0e13a2)"); script_summary(english:"Checks for updated packages in pkg_info output"); script_set_attribute( attribute:"synopsis", value: "The remote FreeBSD host is missing one or more security-related updates." ); script_set_attribute( attribute:"description", value: "Node.js reports : Denial of Service Vulnerability in HTTP/2 (CVE-2018-7161) All versions of 8.x and later are vulnerable and the severity is HIGH. An attacker can cause a denial of service (DoS) by causing a node server providing an http2 server to crash. This can be accomplished by interacting with the http2 server in a manner that triggers a cleanup bug where objects are used in native code after they are no longer available. This has been addressed by updating the http2 implementation. Thanks to Jordan Zebor at F5 Networks for reporting this issue. Denial of Service, nghttp2 dependency (CVE-2018-1000168) All versions of 9.x and later are vulnerable and the severity is HIGH. Under certain conditions, a malicious client can trigger an uninitialized read (and a subsequent segfault) by sending a malformed ALTSVC frame. This has been addressed through an by updating nghttp2. Denial of Service Vulnerability in TLS (CVE-2018-7162) All versions of 9.x and later are vulnerable and the severity is HIGH. An attacker can cause a denial of service (DoS) by causing a node process which provides an http server supporting TLS server to crash. This can be accomplished by sending duplicate/unexpected messages during the handshake. This vulnerability has been addressed by updating the TLS implementation. Thanks to Jordan Zebor at F5 Networks all of his help investigating this issue with the Node.js team. Memory exhaustion DoS on v9.x (CVE-2018-7164) Versions 9.7.0 and later are vulnerable and the severity is MEDIUM. A bug introduced in 9.7.0 increases the memory consumed when reading from the network into JavaScript using the net.Socket object directly as a stream. An attacker could use this cause a denial of service by sending tiny chunks of data in short succession. This vulnerability was restored by reverting to the prior behaviour. Calls to Buffer.fill() and/or Buffer.alloc() may hang (CVE-2018-7167) Calling Buffer.fill() or Buffer.alloc() with some parameters can lead to a hang which could result in a Denial of Service. In order to address this vulnerability, the implementations of Buffer.alloc() and Buffer.fill() were updated so that they zero fill instead of hanging in these cases." ); script_set_attribute( attribute:"see_also", value:"https://nodejs.org/en/blog/vulnerability/june-2018-security-releases/" ); script_set_attribute( attribute:"see_also", value:"https://nghttp2.org/blog/2018/04/12/nghttp2-v1-31-1/" ); # https://vuxml.freebsd.org/freebsd/45b8e2eb-7056-11e8-8fab-63ca6e0e13a2.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?3f75c71a" ); script_set_attribute(attribute:"solution", value:"Update the affected packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:node"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:node6"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:node8"); script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd"); script_set_attribute(attribute:"vuln_publication_date", value:"2018/06/12"); script_set_attribute(attribute:"patch_publication_date", value:"2018/06/15"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/06/15"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"FreeBSD Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info"); exit(0); } include("audit.inc"); include("freebsd_package.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD"); if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (pkg_test(save_report:TRUE, pkg:"node6<6.14.3")) flag++; if (pkg_test(save_report:TRUE, pkg:"node8<8.11.3")) flag++; if (pkg_test(save_report:TRUE, pkg:"node<10.4.1")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:pkg_report_get()); else security_hole(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");
NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-202003-48.NASL description The remote host is affected by the vulnerability described in GLSA-202003-48 (Node.js: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Node.js. Please review the CVE identifiers referenced below for details. Impact : A remote attacker could possibly write arbitrary files, cause a Denial of Service condition or can conduct HTTP request splitting attacks. Workaround : There is no known workaround at this time. last seen 2020-03-26 modified 2020-03-23 plugin id 134776 published 2020-03-23 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134776 title GLSA-202003-48 : Node.js: Multiple vulnerabilities code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Gentoo Linux Security Advisory GLSA 202003-48. # # The advisory text is Copyright (C) 2001-2020 Gentoo Foundation, Inc. # and licensed under the Creative Commons - Attribution / Share Alike # license. See http://creativecommons.org/licenses/by-sa/3.0/ # include("compat.inc"); if (description) { script_id(134776); script_version("1.2"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/25"); script_cve_id("CVE-2018-12115", "CVE-2018-12116", "CVE-2018-12121", "CVE-2018-12122", "CVE-2018-12123", "CVE-2018-7161", "CVE-2018-7162", "CVE-2018-7164", "CVE-2018-7167", "CVE-2019-15604", "CVE-2019-15605", "CVE-2019-15606", "CVE-2019-16777", "CVE-2019-5737", "CVE-2019-5739"); script_xref(name:"GLSA", value:"202003-48"); script_name(english:"GLSA-202003-48 : Node.js: Multiple vulnerabilities"); script_summary(english:"Checks for updated package(s) in /var/db/pkg"); script_set_attribute( attribute:"synopsis", value: "The remote Gentoo host is missing one or more security-related patches." ); script_set_attribute( attribute:"description", value: "The remote host is affected by the vulnerability described in GLSA-202003-48 (Node.js: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Node.js. Please review the CVE identifiers referenced below for details. Impact : A remote attacker could possibly write arbitrary files, cause a Denial of Service condition or can conduct HTTP request splitting attacks. Workaround : There is no known workaround at this time." ); script_set_attribute( attribute:"see_also", value:"https://security.gentoo.org/glsa/202003-48" ); script_set_attribute( attribute:"solution", value: "All Node.js <12.x users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose '>=net-libs/nodejs-10.19.0' All Node.js 12.x users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose '>=net-libs/nodejs-12.15.0'" ); 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: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-2019-15606"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:nodejs"); script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux"); script_set_attribute(attribute:"vuln_publication_date", value:"2018/06/13"); script_set_attribute(attribute:"patch_publication_date", value:"2020/03/20"); script_set_attribute(attribute:"plugin_publication_date", value:"2020/03/23"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Gentoo Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("qpkg.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo"); if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (qpkg_check(package:"net-libs/nodejs", unaffected:make_list("rge 10.19.0", "rge 12.15.0"), vulnerable:make_list("lt 12.15.0"))) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get()); else security_hole(0); exit(0); } else { tested = qpkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "Node.js"); }
References
- http://www.securityfocus.com/bid/104463
- http://www.securityfocus.com/bid/104463
- https://nodejs.org/en/blog/vulnerability/june-2018-security-releases/
- https://nodejs.org/en/blog/vulnerability/june-2018-security-releases/
- https://security.gentoo.org/glsa/202003-48
- https://security.gentoo.org/glsa/202003-48