CWE-400
DiscouragedUncontrolled Resource Consumption
Abstraction: Class · Status: Draft
The product does not properly control the allocation and maintenance of a limited resource.
5567 vulnerabilities reference this CWE, most recent first.
GHSA-5H65-JX66-J7P5
Vulnerability from github – Published: 2026-04-20 06:31 – Updated: 2026-04-23 14:30A security vulnerability has been detected in lm-sys fastchat up to 0.2.36. This issue affects the function api_generate of the component Worker API Endpoint. The manipulation leads to resource consumption. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The identifier of the patch is c9e84b89c91d45191dc24466888de526fa04cf33. It is suggested to install a patch to address this issue. Commit ff66426 patched this issue in api_generate of base_model_worker.py but missed other entry points.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "fschat"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "0.2.26"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-6607"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2026-04-23T14:30:41Z",
"nvd_published_at": "2026-04-20T05:16:16Z",
"severity": "MODERATE"
},
"details": "A security vulnerability has been detected in lm-sys fastchat up to 0.2.36. This issue affects the function api_generate of the component Worker API Endpoint. The manipulation leads to resource consumption. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The identifier of the patch is c9e84b89c91d45191dc24466888de526fa04cf33. It is suggested to install a patch to address this issue. Commit ff66426 patched this issue in api_generate of base_model_worker.py but missed other entry points.",
"id": "GHSA-5h65-jx66-j7p5",
"modified": "2026-04-23T14:30:41Z",
"published": "2026-04-20T06:31:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6607"
},
{
"type": "WEB",
"url": "https://github.com/lm-sys/FastChat/issues/3833"
},
{
"type": "WEB",
"url": "https://github.com/lm-sys/FastChat/pull/3835"
},
{
"type": "WEB",
"url": "https://github.com/lm-sys/FastChat/commit/c9e84b89c91d45191dc24466888de526fa04cf33"
},
{
"type": "WEB",
"url": "https://gist.github.com/YLChen-007/87216a2d97a882d619e11dc67cd473b5"
},
{
"type": "PACKAGE",
"url": "https://github.com/lm-sys/FastChat"
},
{
"type": "WEB",
"url": "https://vuldb.com/submit/792227"
},
{
"type": "WEB",
"url": "https://vuldb.com/vuln/358242"
},
{
"type": "WEB",
"url": "https://vuldb.com/vuln/358242/cti"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
"type": "CVSS_V4"
}
],
"summary": "FastChat has Denial of Service Through Blocking Event Loop in Model Workers (Incomplete Fix for ff66426)"
}
GHSA-5H86-PH4P-6P7W
Vulnerability from github – Published: 2026-07-21 21:32 – Updated: 2026-07-21 21:32Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user with permission to execute EQL sequence queries against an index they control can send a specially crafted query that triggers excessive memory consumption, causing the Elasticsearch node to crash.
{
"affected": [],
"aliases": [
"CVE-2026-56145"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-21T20:17:02Z",
"severity": "MODERATE"
},
"details": "Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user with permission to execute EQL sequence queries against an index they control can send a specially crafted query that triggers excessive memory consumption, causing the Elasticsearch node to crash.",
"id": "GHSA-5h86-ph4p-6p7w",
"modified": "2026-07-21T21:32:40Z",
"published": "2026-07-21T21:32:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56145"
},
{
"type": "WEB",
"url": "https://discuss.elastic.co/t/elasticsearch-8-19-18-9-3-7-9-4-4-security-update-esa-2026-57/388556"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5HGC-2VFP-MQVC
Vulnerability from github – Published: 2024-10-08 18:33 – Updated: 2024-10-30 19:03An issue was discovered in Django 5.1 before 5.1.1, 5.0 before 5.0.9, and 4.2 before 4.2.16. The urlize() and urlizetrunc() template filters are subject to a potential denial-of-service attack via very large inputs with a specific sequence of characters.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "Django"
},
"ranges": [
{
"events": [
{
"introduced": "5.1"
},
{
"fixed": "5.1.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "Django"
},
"ranges": [
{
"events": [
{
"introduced": "5.0"
},
{
"fixed": "5.0.9"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "Django"
},
"ranges": [
{
"events": [
{
"introduced": "4.2"
},
{
"fixed": "4.2.16"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-45230"
],
"database_specific": {
"cwe_ids": [
"CWE-120",
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2024-10-08T21:04:45Z",
"nvd_published_at": "2024-10-08T16:15:11Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in Django 5.1 before 5.1.1, 5.0 before 5.0.9, and 4.2 before 4.2.16. The urlize() and urlizetrunc() template filters are subject to a potential denial-of-service attack via very large inputs with a specific sequence of characters.",
"id": "GHSA-5hgc-2vfp-mqvc",
"modified": "2024-10-30T19:03:34Z",
"published": "2024-10-08T18:33:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-45230"
},
{
"type": "WEB",
"url": "https://github.com/django/django/commit/022ab0a75c76ab2ea31dfcc5f2cf5501e378d397"
},
{
"type": "WEB",
"url": "https://github.com/django/django/commit/813de2672bd7361e9a453ab62cd6e52f96b6525b"
},
{
"type": "WEB",
"url": "https://github.com/django/django/commit/d147a8ebbdf28c17cafbbe2884f0bc57e2bf82e2"
},
{
"type": "WEB",
"url": "https://docs.djangoproject.com/en/dev/releases/security"
},
{
"type": "PACKAGE",
"url": "https://github.com/django/django"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2024-102.yaml"
},
{
"type": "WEB",
"url": "https://groups.google.com/forum/#%21forum/django-announce"
},
{
"type": "WEB",
"url": "https://www.djangoproject.com/weblog/2024/sep/03/security-releases"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Django vulnerable to denial-of-service attack via the urlize() and urlizetrunc() template filters"
}
GHSA-5HPC-FJ64-WXHQ
Vulnerability from github – Published: 2025-10-20 18:30 – Updated: 2025-10-20 18:30An issue was discovered in L2 in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 9820, 9825, 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 9110, W920, W930, Modem 5123, and Modem 5300. Incorrect handling of RLC AM PDUs leads to a Denial of Service.
{
"affected": [],
"aliases": [
"CVE-2025-26782"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-20T16:15:36Z",
"severity": "HIGH"
},
"details": "An issue was discovered in L2 in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 9820, 9825, 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 9110, W920, W930, Modem 5123, and Modem 5300. Incorrect handling of RLC AM PDUs leads to a Denial of Service.",
"id": "GHSA-5hpc-fj64-wxhq",
"modified": "2025-10-20T18:30:32Z",
"published": "2025-10-20T18:30:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-26782"
},
{
"type": "WEB",
"url": "https://semiconductor.samsung.com/support/quality-support/product-security-updates"
},
{
"type": "WEB",
"url": "https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2025-26782"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5J4X-8X28-Q6R2
Vulnerability from github – Published: 2022-05-24 17:16 – Updated: 2024-04-04 02:50SHAREit through 4.0.6.177 does not check the full message length from the received packet header (which is used to allocate memory for the next set of data). This could lead to a system denial of service due to uncontrolled memory allocation. This is different from CVE-2019-14941.
{
"affected": [],
"aliases": [
"CVE-2019-15234"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-04-27T17:15:00Z",
"severity": "HIGH"
},
"details": "SHAREit through 4.0.6.177 does not check the full message length from the received packet header (which is used to allocate memory for the next set of data). This could lead to a system denial of service due to uncontrolled memory allocation. This is different from CVE-2019-14941.",
"id": "GHSA-5j4x-8x28-q6r2",
"modified": "2024-04-04T02:50:18Z",
"published": "2022-05-24T17:16:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-15234"
},
{
"type": "WEB",
"url": "https://github.com/nathunandwani/shareit-cwe-789"
},
{
"type": "WEB",
"url": "https://shareit.one/blog"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5J59-XGG2-R9C4
Vulnerability from github – Published: 2025-12-12 17:21 – Updated: 2026-01-15 21:55It was discovered that the fix for CVE-2025-55184 in React Server Components was incomplete and did not fully mitigate denial-of-service conditions across all payload types. As a result, certain crafted inputs could still trigger excessive resource consumption.
This vulnerability affects React versions 19.0.2, 19.1.3, and 19.2.2, as well as frameworks that bundle or depend on these versions, including Next.js 13.x, 14.x, 15.x, and 16.x when using the App Router. The issue is tracked upstream as CVE-2025-67779.
A malicious actor can send a specially crafted HTTP request to a Server Function endpoint that, when deserialized, causes the React Server Components runtime to enter an infinite loop. This can lead to sustained CPU consumption and cause the affected server process to become unresponsive, resulting in a denial-of-service condition in unpatched environments.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "next"
},
"ranges": [
{
"events": [
{
"introduced": "13.3.1-canary.0"
},
{
"fixed": "14.2.35"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "next"
},
"ranges": [
{
"events": [
{
"introduced": "15.0.6"
},
{
"fixed": "15.0.7"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "next"
},
"ranges": [
{
"events": [
{
"introduced": "15.1.10"
},
{
"fixed": "15.1.11"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "next"
},
"ranges": [
{
"events": [
{
"introduced": "15.2.7"
},
{
"fixed": "15.2.8"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "next"
},
"ranges": [
{
"events": [
{
"introduced": "15.3.7"
},
{
"fixed": "15.3.8"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "next"
},
"ranges": [
{
"events": [
{
"introduced": "15.4.9"
},
{
"fixed": "15.4.10"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "next"
},
"ranges": [
{
"events": [
{
"introduced": "15.5.8"
},
{
"fixed": "15.5.9"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "next"
},
"ranges": [
{
"events": [
{
"introduced": "15.6.0-canary.59"
},
{
"fixed": "15.6.0-canary.60"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "next"
},
"ranges": [
{
"events": [
{
"introduced": "16.0.9"
},
{
"fixed": "16.0.10"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "next"
},
"ranges": [
{
"events": [
{
"introduced": "16.1.0-canary.17"
},
{
"fixed": "16.1.0-canary.19"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-1395",
"CWE-400",
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2025-12-12T17:21:57Z",
"nvd_published_at": "2025-12-12T00:15:46Z",
"severity": "HIGH"
},
"details": "It was discovered that the fix for [CVE-2025-55184](https://github.com/advisories/GHSA-2m3v-v2m8-q956) in React Server Components was incomplete and did not fully mitigate denial-of-service conditions across all payload types. As a result, certain crafted inputs could still trigger excessive resource consumption. \n\nThis vulnerability affects React versions 19.0.2, 19.1.3, and 19.2.2, as well as frameworks that bundle or depend on these versions, including Next.js 13.x, 14.x, 15.x, and 16.x when using the App Router. The issue is tracked upstream as [CVE-2025-67779](https://www.cve.org/CVERecord?id=CVE-2025-67779).\n\nA malicious actor can send a specially crafted HTTP request to a Server Function endpoint that, when deserialized, causes the React Server Components runtime to enter an infinite loop. This can lead to sustained CPU consumption and cause the affected server process to become unresponsive, resulting in a denial-of-service condition in unpatched environments.",
"id": "GHSA-5j59-xgg2-r9c4",
"modified": "2026-01-15T21:55:04Z",
"published": "2025-12-12T17:21:57Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/vercel/next.js/security/advisories/GHSA-5j59-xgg2-r9c4"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-67779"
},
{
"type": "PACKAGE",
"url": "https://github.com/vercel/next.js"
},
{
"type": "WEB",
"url": "https://nextjs.org/blog/security-update-2025-12-11"
},
{
"type": "WEB",
"url": "https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components"
},
{
"type": "WEB",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-55184"
},
{
"type": "WEB",
"url": "https://www.facebook.com/security/advisories/cve-2025-67779"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Next has a Denial of Service with Server Components - Incomplete Fix Follow-Up"
}
GHSA-5J69-9P6P-7984
Vulnerability from github – Published: 2022-05-24 17:38 – Updated: 2022-07-13 00:01NVIDIA vGPU manager contains a vulnerability in the vGPU plugin, in which input data is not validated, which may lead to unexpected consumption of resources, which in turn may lead to denial of service. This affects vGPU version 8.x (prior to 8.6) and version 11.0 (prior to 11.3).
{
"affected": [],
"aliases": [
"CVE-2021-1066"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-01-08T15:15:00Z",
"severity": "MODERATE"
},
"details": "NVIDIA vGPU manager contains a vulnerability in the vGPU plugin, in which input data is not validated, which may lead to unexpected consumption of resources, which in turn may lead to denial of service. This affects vGPU version 8.x (prior to 8.6) and version 11.0 (prior to 11.3).",
"id": "GHSA-5j69-9p6p-7984",
"modified": "2022-07-13T00:01:00Z",
"published": "2022-05-24T17:38:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-1066"
},
{
"type": "WEB",
"url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5142"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5J9P-W3CM-6283
Vulnerability from github – Published: 2026-01-08 18:30 – Updated: 2026-01-08 21:30An issue in Insiders Technologies GmbH e-invoice pro before release 1 Service Pack 2 allows a remote attacker to cause a denial of service via a crafted script
{
"affected": [],
"aliases": [
"CVE-2025-56424"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-08T17:15:47Z",
"severity": "HIGH"
},
"details": "An issue in Insiders Technologies GmbH e-invoice pro before release 1 Service Pack 2 allows a remote attacker to cause a denial of service via a crafted script",
"id": "GHSA-5j9p-w3cm-6283",
"modified": "2026-01-08T21:30:34Z",
"published": "2026-01-08T18:30:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-56424"
},
{
"type": "WEB",
"url": "https://insiders-technologies.com/en/e-invoice"
},
{
"type": "WEB",
"url": "https://mind-bytes.de/xml-external-entity-xxe-injection-in-e-invoice-pro-cve-2025-56424"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5JFM-FVC2-73XF
Vulnerability from github – Published: 2023-08-02 03:30 – Updated: 2024-04-04 06:29An issue has been discovered in GitLab CE/EE affecting all versions starting from 9.3 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. A Regular Expression Denial of Service was possible via sending crafted payloads which use ProjectReferenceFilter to the preview_markdown endpoint.
{
"affected": [],
"aliases": [
"CVE-2023-3994"
],
"database_specific": {
"cwe_ids": [
"CWE-1333",
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-02T01:15:09Z",
"severity": "HIGH"
},
"details": "An issue has been discovered in GitLab CE/EE affecting all versions starting from 9.3 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. A Regular Expression Denial of Service was possible via sending crafted payloads which use ProjectReferenceFilter to the preview_markdown endpoint.",
"id": "GHSA-5jfm-fvc2-73xf",
"modified": "2024-04-04T06:29:26Z",
"published": "2023-08-02T03:30:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3994"
},
{
"type": "WEB",
"url": "https://hackerone.com/reports/1963255"
},
{
"type": "WEB",
"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/416225"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5JFW-Q283-HM73
Vulnerability from github – Published: 2022-05-13 01:36 – Updated: 2022-05-13 01:36In Eclipse Mosquitto 1.4.14, a user can shutdown the Mosquitto server simply by filling the RAM memory with a lot of connections with large payload. This can be done without authentications if occur in connection phase of MQTT protocol.
{
"affected": [],
"aliases": [
"CVE-2017-7651"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-04-24T14:29:00Z",
"severity": "HIGH"
},
"details": "In Eclipse Mosquitto 1.4.14, a user can shutdown the Mosquitto server simply by filling the RAM memory with a lot of connections with large payload. This can be done without authentications if occur in connection phase of MQTT protocol.",
"id": "GHSA-5jfw-q283-hm73",
"modified": "2022-05-13T01:36:16Z",
"published": "2022-05-13T01:36:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-7651"
},
{
"type": "WEB",
"url": "https://bugs.eclipse.org/bugs/show_bug.cgi?id=529754"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2018/03/msg00037.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00016.html"
},
{
"type": "WEB",
"url": "https://mosquitto.org/blog/2018/02/security-advisory-cve-2017-7651-cve-2017-7652"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2018/dsa-4325"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
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
- 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
Ensure that protocols have specific limits of scale placed on them.
Mitigation
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.