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)
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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.
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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.
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Architecture and Design
Ensure that protocols have specific limits of scale placed on them.
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Implementation
Ensure that all failures in resource allocation place the system into a safe posture.
Source: MITRE CWE-400
4,063 results · Feed
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High 7.5
Unspecified vulnerability in Adobe Flash Media Server (FMS) before 3.5.3 allows attackers to cause a denial of service …
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High 7.5
Django Regex Algorithmic Complexity Causes Denial of Service
Algorithmic complexity vulnerability in the forms library in Django 1.0 before 1.0.4 and 1.1 before 1.1.1 allows remote attackers to cause a denial of service (CPU consumption) via a crafted (1) EmailField (email address) or (2) URLField (URL) that triggers a…
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High 7.5
The web browser on the Sony PLAYSTATION 3 (PS3) allows remote attackers to cause a denial of service (memory consumptio…
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Medium —CVE-2009-0033 EPSS 10%
Apache Tomcat Denial of Service via Malformed Request Headers
Apache Tomcat 4.1.0 through 4.1.39, 5.5.0 through 5.5.27, and 6.0.0 through 6.0.18, when the Java AJP connector and mod_jk load balancing are used, allows remote attackers to cause a denial of service (application outage) via a crafted request with invalid he…
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High 7.5
MoinMoin Denial of Service vulnerability via password_checker function
The password_checker function in config/multiconfig.py in MoinMoin 1.6.1 uses the cracklib and python-crack features even though they are not thread-safe, which allows remote attackers to cause a denial of service (segmentation fault and crash) via unknown ve…
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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-…
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High 7.5
The skge driver 1.5 in Linux kernel 2.6.15 on Ubuntu does not properly use the spin_lock and spin_unlock functions, whi…
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Medium 5.9
Django vulnerable to Denial of Service via i18n middleware component
The internationalization (i18n) framework in Django 0.91, 0.95, 0.95.1, and 0.96, and as used in other products such as PyLucid, when the USE_I18N option and the i18n component are enabled, allows remote attackers to cause a denial of service (memory consumpt…
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Medium 5.5
Unspecified vulnerability in the "alignment check exception handling" in Ubuntu 5.10, 6.06 LTS, and 6.10 for the PowerP…
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Medium 5.5
Ubuntu Linux 6.10 for the PowerPC (PPC) allows local users to cause a denial of service (resource consumption) by using…
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High 7.5
QUALCOMM Eudora WorldMail 4.0 allows remote attackers to cause a denial of service, as demonstrated by a certain module…
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Medium 6.5
WordPress before 2.0.5 does not properly store a profile containing a string representation of a serialized object, whi…
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High 7.5
Multiple unspecified vulnerabilities in MDaemon and WorldClient in Alt-N Technologies MDaemon before 9.50 allow attacke…
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Critical 9.4
Trac reStructuredText breach of privacy and denial of service vulnerability
Trac before 0.9.6 does not disable the "raw" or "include" commands when providing untrusted users with restructured text (reStructuredText) functionality from docutils, which allows remote attackers to read arbitrary files, perform cross-site scripting (XSS) …
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Medium —
Apache James Denial of Service
Spooler in Apache Foundation James 2.2.0 allows local users to cause a denial of service (memory consumption) by triggering various error conditions in the retrieve function, which prevents a lock from being released and causes a memory leak.
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Medium —
Jetty HTTP Server Denial of Service vulnerability
HttpRequest.java in Jetty HTTP Server before 4.2.19 allows remote attackers to cause denial of service (memory usage and application crash) via HTTP requests with a large Content-Length.
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Medium 5.9CVE-2004-1464 Exploited
Cisco IOS 12.2(15) and earlier allows remote attackers to cause a denial of service (refused VTY (virtual terminal) con…
KEV May 19, 2023 -
Medium —
Jakarta Tomcat Denial of Service vulnerability
Jakarta Tomcat before 3.3.1a on certain Windows systems may allow remote attackers to cause a denial of service (thread hang and resource consumption) via a request for a JSP page containing an MS-DOS device name, such as aux.jsp.
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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.
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Medium —
Apache Tomcat DoS Via Requests Including Null Characters
Apache Tomcat 4.0.3, and possibly other versions before 4.1.3 beta, allows remote attackers to cause a denial of service (resource exhaustion) via a large number of requests to the server with null characters, which causes the working threads to hang.
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Medium —
Zope Server vulnerable to DoS via header injection
The "through the web code" capability for Zope 2.0 through 2.5.1 b1 allows untrusted users to shut down the Zope server via certain headers.
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High 7.5
Cerberus FTP server 1.0 - 1.5 allows remote attackers to cause a denial of service (crash) via a large number of "PASV"…
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Low 3.5
Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). Thi…