Common Weakness Enumeration

CWE-400

Discouraged

Uncontrolled Resource Consumption

Abstraction: Class · Status: Draft

API response cwe.mitre.org

The product does not properly control the allocation and maintenance of a limited resource.

5473 vulnerabilities reference this CWE, most recent first.

CVE-2021-23042 (GCVE-0-2021-23042)

Vulnerability from cvelistv5 – Published: 2021-09-14 14:56 – Updated: 2024-08-03 18:58
VLAI
Summary
On BIG-IP version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3, 14.1.x before 14.1.4, 13.1.x before 13.1.4, and 12.1.x before 12.1.6, when an HTTP profile is configured on a virtual server, undisclosed requests can cause a significant increase in system resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Severity
No CVSS data available.
CWE
Assigner
f5
References
Impacted products
Vendor Product Version
n/a BIG-IP Affected: 16.0.x before 16.0.1.2, 15.1.x before 15.1.3, 14.1.x before 14.1.4, 13.1.x before 13.1.4, and 12.1.x before 12.1.6
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CVE-2021-22965 (GCVE-0-2021-22965)

Vulnerability from cvelistv5 – Published: 2021-11-19 18:10 – Updated: 2024-08-03 18:58
VLAI
Summary
A vulnerability in Pulse Connect Secure before 9.1R12.1 could allow an unauthenticated administrator to causes a denial of service when a malformed request is sent to the device.
Severity
No CVSS data available.
CWE
  • CWE-400 - Denial of Service (CWE-400)
Assigner
References
Impacted products
Vendor Product Version
n/a Pulse Connect Secure Affected: Fixed in 9.1R12.1
Show details on NVD website
To clipboard 

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CVE-2021-22964 (GCVE-0-2021-22964)

Vulnerability from cvelistv5 – Published: 2021-10-14 14:50 – Updated: 2024-08-03 18:58
VLAI
Summary
A redirect vulnerability in the `fastify-static` module version >= 4.2.4 and < 4.4.1 allows remote attackers to redirect Mozilla Firefox users to arbitrary websites via a double slash `//` followed by a domain: `http://localhost:3000//a//youtube.com/%2e%2e%2f%2e%2e`.A DOS vulnerability is possible if the URL contains invalid characters `curl --path-as-is "http://localhost:3000//^/.."`The issue shows up on all the `fastify-static` applications that set `redirect: true` option. By default, it is `false`.
Severity
No CVSS data available.
CWE
  • CWE-400 - Denial of Service (CWE-400)
Assigner
References
URL Tags
https://hackerone.com/reports/1361804 x_refsource_MISC
Impacted products
Vendor Product Version
n/a https://github.com/fastify/fastify-static Affected: Affected >= v4.2.4, Fixed v4.4.1
Show details on NVD website
To clipboard 

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CVE-2021-22956 (GCVE-0-2021-22956)

Vulnerability from cvelistv5 – Published: 2021-12-07 13:12 – Updated: 2024-08-03 18:58
VLAI
Summary
An uncontrolled resource consumption vulnerability exists in Citrix ADC <13.0-83.27, <12.1-63.22 and 11.1-65.23 that could allow an attacker with access to NSIP or SNIP with management interface access to cause a temporary disruption of the Management GUI, Nitro API, and RPC communication.
Severity
No CVSS data available.
CWE
  • CWE-400 - Denial of Service (CWE-400)
Assigner
References
Impacted products
Vendor Product Version
n/a Citrix ADC, Citrix Gateway, Citrix SDWAN Affected: Citrix ADC 11.1,12.1,13.0,13.1
Show details on NVD website
To clipboard 

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CVE-2021-22955 (GCVE-0-2021-22955)

Vulnerability from cvelistv5 – Published: 2021-12-07 13:12 – Updated: 2024-08-03 18:58
VLAI
Summary
A unauthenticated denial of service vulnerability exists in Citrix ADC <13.0-83.27, <12.1-63.22 and 11.1-65.23 when configured as a VPN (Gateway) or AAA virtual server could allow an attacker to cause a temporary disruption of the Management GUI, Nitro API, and RPC communication.
Severity
No CVSS data available.
CWE
  • CWE-400 - Denial of Service (CWE-400)
Assigner
References
Impacted products
Vendor Product Version
n/a Citrix ADC, Citrix Gateway Affected: Citrix ADC 111.1, 2.1, 13.0,13.1
Show details on NVD website
To clipboard 

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CVE-2021-22906 (GCVE-0-2021-22906)

Vulnerability from cvelistv5 – Published: 2021-06-11 15:49 – Updated: 2024-08-03 18:58
VLAI
Summary
Nextcloud End-to-End Encryption before 1.5.3, 1.6.3 and 1.7.1 suffers from a denial of service vulnerability due to permitting any authenticated users to lock files of other users.
Severity
No CVSS data available.
CWE
  • CWE-400 - Denial of Service (CWE-400)
Assigner
References
Impacted products
Vendor Product Version
n/a Nextcloud End-to-End Encryption Affected: Fixed in 1.5.3, 1.6.3, 1.7.1
Show details on NVD website
To clipboard 

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CVE-2021-22904 (GCVE-0-2021-22904)

Vulnerability from cvelistv5 – Published: 2021-06-11 15:49 – Updated: 2024-08-03 18:58
VLAI
Summary
The actionpack ruby gem before 6.1.3.2, 6.0.3.7, 5.2.4.6, 5.2.6 suffers from a possible denial of service vulnerability in the Token Authentication logic in Action Controller due to a too permissive regular expression. Impacted code uses `authenticate_or_request_with_http_token` or `authenticate_with_http_token` for request authentication.
Severity
No CVSS data available.
CWE
  • CWE-400 - Denial of Service (CWE-400)
Assigner
References
Impacted products
Vendor Product Version
n/a https://github.com/rails/rails Affected: Fixed in 6.1.3.2, 6.0.3.7, 5.2.4.6, 5.2.6
Show details on NVD website
To clipboard 

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CVE-2021-22902 (GCVE-0-2021-22902)

Vulnerability from cvelistv5 – Published: 2021-06-11 15:49 – Updated: 2024-08-03 18:58
VLAI
Summary
The actionpack ruby gem (a framework for handling and responding to web requests in Rails) before 6.0.3.7, 6.1.3.2 suffers from a possible denial of service vulnerability in the Mime type parser of Action Dispatch. Carefully crafted Accept headers can cause the mime type parser in Action Dispatch to do catastrophic backtracking in the regular expression engine.
Severity
No CVSS data available.
CWE
  • CWE-400 - Denial of Service (CWE-400)
Assigner
References
Impacted products
Vendor Product Version
n/a https://github.com/rails/rails Affected: Fixed in 6.0.3.7, 6.1.3.2
Show details on NVD website
To clipboard 

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CVE-2021-22883 (GCVE-0-2021-22883)

Vulnerability from cvelistv5 – Published: 2021-03-03 17:38 – Updated: 2025-04-30 22:24
VLAI
Summary
Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to a denial of service attack when too many connection attempts with an 'unknownProtocol' are established. This leads to a leak of file descriptors. If a file descriptor limit is configured on the system, then the server is unable to accept new connections and prevent the process also from opening, e.g. a file. If no file descriptor limit is configured, then this lead to an excessive memory usage and cause the system to run out of memory.
Severity
No CVSS data available.
CWE
  • CWE-400 - Denial of Service (CWE-400)
Assigner
References
Impacted products
Vendor Product Version
NodeJS Node Affected: 4.0 , < 4.* (semver)
Affected: 5.0 , < 5.* (semver)
Affected: 6.0 , < 6.* (semver)
Affected: 7.0 , < 7.* (semver)
Affected: 8.0 , < 8.* (semver)
Affected: 9.0 , < 9.* (semver)
Affected: 10.0 , < 10.24.0 (semver)
Affected: 11.0 , < 11.* (semver)
Affected: 12.0 , < 12.21.0 (semver)
Affected: 13.0 , < 13.* (semver)
Affected: 14.0 , < 14.16.0 (semver)
Affected: 15.0 , < 15.10.0 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2021-22882 (GCVE-0-2021-22882)

Vulnerability from cvelistv5 – Published: 2021-02-23 18:28 – Updated: 2024-08-03 18:58
VLAI
Summary
UniFi Protect before v1.17.1 allows an attacker to use spoofed cameras to perform a denial-of-service attack that may cause the UniFi Protect controller to crash.
Severity
No CVSS data available.
CWE
  • CWE-400 - Denial of Service (CWE-400)
Assigner
References
Impacted products
Vendor Product Version
n/a UniFi Protect Affected: Fixed in v1.17.1
Show details on NVD website
To clipboard 

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Mitigation
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.

Mitigation
Architecture and Design
  • Mitigation of resource exhaustion attacks requires that the target system either:
  • 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.
  • 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.
Mitigation
Architecture and Design

Ensure that protocols have specific limits of scale placed on them.

Mitigation
Implementation

Ensure that all failures in resource allocation place the system into a safe posture.

CAPEC-147: 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.

CAPEC-227: Sustained Client Engagement

An adversary attempts to deny legitimate users access to a resource by continually engaging a specific resource in an attempt to keep the resource tied up as long as possible. The adversary's primary goal is not to crash or flood the target, which would alert defenders; rather it is to repeatedly perform actions or abuse algorithmic flaws such that a given resource is tied up and not available to a legitimate user. By carefully crafting a requests that keep the resource engaged through what is seemingly benign requests, legitimate users are limited or completely denied access to the resource.

CAPEC-492: Regular Expression Exponential Blowup

An adversary may execute an attack on a program that uses a poor Regular Expression(Regex) implementation by choosing input that results in an extreme situation for the Regex. A typical extreme situation operates at exponential time compared to the input size. This is due to most implementations using a Nondeterministic Finite Automaton(NFA) state machine to be built by the Regex algorithm since NFA allows backtracking and thus more complex regular expressions.

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