Weakness (CWE)
CWE-400: Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource.
How to prevent it (4 mitigations)
-
Architecture and Design
Design throttling mechanisms into the system architecture. The best protection is to limit the amount of resources that an unauthorized user can cause to be expended. A strong authentication and access control model will help prevent such attacks from occurring in the first place. The login application should be protected against DoS attacks as much as possible. Limiting the database access, perhaps by caching result sets, can help minimize the resources expended. To further limit the potential for a DoS attack, consider tracking the rate of requests received from users and blocking requests that exceed a defined rate threshold.
-
Architecture and Design
Mitigation of resource exhaustion attacks requires that the target system either:
- recognizes the attack and denies that user further access for a given amount of time, or
- uniformly throttles all requests in order to make it more difficult to consume resources more quickly than they can again be freed.
The first of these solutions is an issue in itself though, since it may allow attackers to prevent the use of the system by a particular valid user. If the attacker impersonates the valid user, they may be able to prevent the user from accessing the server in question.
The second solution is simply difficult to effectively institute -- and even when properly done, it does not provide a full solution. It simply makes the attack require more resources on the part of the attacker.
-
Architecture and Design
Ensure that protocols have specific limits of scale placed on them.
-
Implementation
Ensure that all failures in resource allocation place the system into a safe posture.
Source: MITRE CWE-400
152 results · Clear filters · Feed
-
High 7.5CVE-2020-35498 Public exploit
A vulnerability was found in openvswitch. A limitation in the implementation of userspace packet parsing can allow a ma…
-
High 7.5
-
Unscored —
A Node.js application that allows an attacker to trigger a DNS request for a host of their choice could trigger a Denia…
-
High 7.5
Denial of service in Apache OpenMeetings
Attackers can use public NetTest web service of Apache OpenMeetings 4.0.0-5.0.0 to organize denial of service attack.
-
High 7.5
Rapid7 Metasploit HTTP Handler Denial of Service
By sending a specially crafted HTTP GET request to a listening Rapid7 Metasploit HTTP handler, an attacker can register an arbitrary regular expression. When evaluated, this malicious handler can either prevent new HTTP handler sessions from being established…
-
Medium 5.5CVE-2020-8175 Public exploit
Uncontrolled resource consumption in jpeg-js
Uncontrolled resource consumption in `jpeg-js` before 0.4.0 may allow attacker to launch denial of service attacks using specially a crafted JPEG image.
-
High 7.5
Uncontrolled Resource Consumption in Apache Tomcat
A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 conne…
-
High 7.5CVE-2020-7661 Public exploit
Regular expression denial of service in url-regex
all versions of url-regex are vulnerable to Regular Expression Denial of Service. An attacker providing a very long string in String.test can cause a Denial of Service.
-
Medium 5.7CVE-2020-5236 Public exploit
Catastrophic backtracking in regex allows Denial of Service in Waitress
Waitress version 1.4.2 allows a DOS attack When waitress receives a header that contains invalid characters. When a header like "Bad-header: xxxxxxxxxxxxxxx\x10" is received, it will cause the regular expression engine to catastrophically backtrack causing th…
-
Medium 4.5CVE-2019-11287 Public exploit
RabbitMQ Web Management Plugin DoS via heap overflow
Pivotal RabbitMQ, versions 3.7.x prior to 3.7.21 and 3.8.x prior to 3.8.1, and RabbitMQ for Pivotal Platform, 1.16.x versions prior to 1.16.7 and 1.17.x versions prior to 1.17.4, contain a web management plugin that is vulnerable to a denial of service attack…
-
High 7.5
Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service
Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service. The attacker creates multiple request streams and continually shuffles the priority of the streams in a way that causes substantial churn to the priority…
-
High 7.5
Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service
Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service. The attacker requests a large amount of data from a specified resource over multiple streams. They manip…
-
Unscored —
In Node.js including 6.x before 6.17.0, 8.x before 8.15.1, 10.x before 10.15.2, and 11.x before 11.10.1, an attacker ca…
-
Medium —CVE-2018-16492 Public exploit
Prototype Pollution in extend
A prototype pollution vulnerability was found in module extend <2.0.2, ~<3.0.2 that allows an attacker to inject arbitrary properties onto Object.prototype.
-
Medium 5.5CVE-2018-15437 Public exploit
Cisco Immunet and Cisco AMP for Endpoints System Scan Denial of Service Vulnerability
A vulnerability in the system scanning component of Cisco Immunet and Cisco Advanced Malware Protection (AMP) for Endpoints running on Microsoft Windows could allow a local attacker to disable the scanning functionality of the product. This could allow execut…
-
Medium 5.3
nginx before versions 1.15.6 and 1.14.1 has a vulnerability in the implementation of HTTP/2 that can allow for excessiv…
-
Unscored —
The Linux kernel, versions 3.9+, IP implementation is vulnerable to denial of service conditions with low rates of specially modified packets
The Linux kernel, versions 3.9+, is vulnerable to a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may cause a denial of service condition by sending specially crafted IP fragments. Various…
-
Unscored —CVE-2018-10608 Public exploit
SEL AcSELerator Architect version 2.2.24.0 and prior can be exploited when the AcSELerator Architect FTP client connect…
-
High —CVE-2017-16086 Public exploit
ReDoS via long UserAgent header in ua-parser
ua-parser is a port of Browserscope's user agent parser. ua-parser is vulnerable to a ReDoS (Regular Expression Denial of Service) attack when given a specially crafted UserAgent header.
-
High —CVE-2016-10542 Public exploit
DoS due to excessively large websocket message in ws
ws is a "simple to use, blazing fast and thoroughly tested websocket client, server and console for node.js, up-to-date against RFC-6455". By sending an overly long websocket payload to a `ws` server, it is possible to crash the node process. This affects ws …
-
Unscored —
A denial of service flaw was found in OpenSSL 0.9.8, 1.0.1, 1.0.2 through 1.0.2h, and 1.1.0 in the way the TLS/SSL prot…
-
High 7.5
Uncontrolled Resource Consumption in Apache ZooKeeper
Two four letter word commands "wchp/wchc" are CPU intensive and could cause spike of CPU utilization on Apache ZooKeeper server if abused, which leads to the server unable to serve legitimate client requests. Apache ZooKeeper thru version 3.4.9 and 3.5.2 suff…
-
Unscored —CVE-2017-9627 Public exploit
An Uncontrolled Resource Consumption issue was discovered in Schneider Electric Wonderware ArchestrA Logger, versions 2…
-
Unscored —
An issue was discovered in Schneider Electric Conext ComBox, model 865-1058, all firmware versions prior to V3.03 BN 83…
-
High 7.5
The kex_input_kexinit function in kex.c in OpenSSH 6.x and 7.x through 7.3 allows remote attackers to cause a denial of…
-
High 8.1CVE-2015-5600 Public exploit
The kbdint_next_device function in auth2-chall.c in sshd in OpenSSH through 6.9 does not properly restrict the processi…
-
Medium —
Integer Overflow or Wraparound in Apache Tomcat
Integer overflow in the parseChunkHeader function in java/org/apache/coyote/http11/filters/ChunkedInputFilter.java in Apache Tomcat before 6.0.40, 7.x before 7.0.53, and 8.x before 8.0.4 allows remote attackers to cause a denial of service (resource consumpti…
-
Medium —CVE-2013-4322 Public exploit
Apache Tomcat Denial of Service vulnerability
Apache Tomcat before 6.0.39, 7.x before 7.0.50, and 8.x before 8.0.0-RC10 processes chunked transfer coding without properly handling (1) a large total amount of chunked data or (2) whitespace characters in an HTTP header value within a trailer field, which a…
-
Medium —
Apache Sling POST Servlets Denial of Service Vulnerability
The @CopyFrom operation in the POST servlet in the org.apache.sling.servlets.post bundle before 2.1.2 in Apache Sling does not prevent attempts to copy an ancestor node to a descendant node, which allows remote attackers to cause a denial of service (infinite…
-
High —
Apache Geronimo Hash Collisions Cause DoS
Apache Geronimo 2.2.1 and earlier computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.…
-
High —
WEBrick Denial of Service Vulnerability
httputils.rb in WEBrick in Ruby 1.8.1 and 1.8.5, as used in Red Hat Enterprise Linux 4 and 5, allows remote attackers to cause a denial of service (CPU consumption) via a crafted HTTP request. NOTE: this issue exists because of an incomplete fix for CVE-2008-…
-
Medium —
Apache Tomcat Denial of Service vulnerability in the Catalina package
The Catalina org.apache.catalina.connector.http package in Tomcat 4.0.x up to 4.0.3 allows remote attackers to cause a denial of service via several requests that do not follow the HTTP protocol, which causes Tomcat to reject later requests.