Vulnerabilities > CVE-2016-4055 - Resource Exhaustion vulnerability in multiple products

Attack vector
Attack complexity
Privileges required
Confidentiality impact
Integrity impact
Availability impact
low complexity


The duration function in the moment package before 2.11.2 for Node.js allows remote attackers to cause a denial of service (CPU consumption) via a long string, aka a "regular expression Denial of Service (ReDoS)."

Vulnerable Configurations

Part Description Count

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.


  • NASL familyMisc.
    NASL idNESSUS_TNS_2019_02.NASL
    descriptionAccording to its self-reported version, the Tenable Nessus application running on the remote host is prior to 8.3.0. It is, therefore, affected by: - An information disclosure vulnerability exists in OpenSSL. A remote attacker may be able to obtain sensitive information, caused by the failure to immediately close the TCP connection after the hosts encounter a zero-length record with valid padding. (CVE-2019-1559) - A denial of service (DoS) vulnerability exists in the moment module before 2.19.3 for Node.js. An unauthenticated, remote attacker can exploit this issue, via regular expression of crafted date string different than CVE-2016-4055 to cause the CPU consumption. (CVE-2017-18214) - A denial of service (DoS) vulnerability exists in the duration function in the moment package before 2.11.2 for Node.js. An unauthenticated, remote attackers can exploit this issue, via date string ReDoS which will cause CPU consumption. (CVE-2016-4055)
    last seen2020-06-01
    plugin id123462
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    titleTenable Nessus < 8.3.0 Multiple Vulnerabilities (TNS-2019-02)
  • NASL familyCGI abuses
    descriptionAccording to its self-reported version number, the Oracle Primavera Unifier installation running on the remote web server is 16.x prior to, 17.x prior to, or 18.x prior to It is, therefore, affected by multiple vulnerabilities. Note that Nessus has not tested for these issues but has instead relied only on the application
    last seen2020-06-01
    plugin id111213
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    titleOracle Primavera Unifier Multiple Vulnerabilities (July 2018 CPU)