CWE-400
DiscouragedUncontrolled Resource Consumption
Abstraction: Class · Status: Draft
The product does not properly control the allocation and maintenance of a limited resource.
6485 vulnerabilities reference this CWE, most recent first.
GHSA-MP3C-Q886-FVQV
Vulnerability from github – Published: 2026-05-11 21:31 – Updated: 2026-07-27 21:31The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5. An attacker on the local network may be able to cause a denial-of-service.
{
"affected": [],
"aliases": [
"CVE-2026-43653"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-11T21:19:01Z",
"severity": "MODERATE"
},
"details": "The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5. An attacker on the local network may be able to cause a denial-of-service.",
"id": "GHSA-mp3c-q886-fvqv",
"modified": "2026-07-27T21:31:08Z",
"published": "2026-05-11T21:31:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43653"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/127110"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/127111"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/127115"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/127117"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/127118"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/128071"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-MP4C-VQQF-2QXG
Vulnerability from github – Published: 2022-01-21 00:00 – Updated: 2023-08-08 15:31Due to the lack of media file checks before rendering, it was possible for an attacker to cause abnormal CPU consumption for message recipient by sending specially crafted gif image in LINE for Windows before 7.4.
{
"affected": [],
"aliases": [
"CVE-2022-22820"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-01-20T12:15:00Z",
"severity": "MODERATE"
},
"details": "Due to the lack of media file checks before rendering, it was possible for an attacker to cause abnormal CPU consumption for message recipient by sending specially crafted gif image in LINE for Windows before 7.4.",
"id": "GHSA-mp4c-vqqf-2qxg",
"modified": "2023-08-08T15:31:37Z",
"published": "2022-01-21T00:00:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-22820"
},
{
"type": "WEB",
"url": "https://hackerone.com/reports/1357400"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MP76-5XHH-VXVC
Vulnerability from github – Published: 2026-03-27 15:30 – Updated: 2026-03-27 15:30A testdata data-source can be used to trigger out-of-memory crashes in Grafana.
{
"affected": [],
"aliases": [
"CVE-2026-28375"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-27T15:16:51Z",
"severity": "MODERATE"
},
"details": "A testdata data-source can be used to trigger out-of-memory crashes in Grafana.",
"id": "GHSA-mp76-5xhh-vxvc",
"modified": "2026-03-27T15:30:25Z",
"published": "2026-03-27T15:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28375"
},
{
"type": "WEB",
"url": "https://grafana.com/security/security-advisories/cve-2026-28375"
}
],
"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-MPCF-4GMH-23W8
Vulnerability from github – Published: 2018-07-24 20:16 – Updated: 2023-09-11 22:05Affected versions of forwarded are vulnerable to regular expression denial of service when parsing specially crafted user input.
Recommendation
Update to version 0.1.2 or later
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "forwarded"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.1.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2017-16118"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2020-06-16T21:46:42Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "Affected versions of `forwarded` are vulnerable to regular expression denial of service when parsing specially crafted user input.\n\n\n## Recommendation\n\nUpdate to version 0.1.2 or later",
"id": "GHSA-mpcf-4gmh-23w8",
"modified": "2023-09-11T22:05:14Z",
"published": "2018-07-24T20:16:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-16118"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-mpcf-4gmh-23w8"
},
{
"type": "WEB",
"url": "https://www.npmjs.com/advisories/527"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/104427"
}
],
"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"
}
],
"summary": "Regular Expression Denial of Service in forwarded"
}
GHSA-MPF4-983Q-P7J4
Vulnerability from github – Published: 2026-09-02 14:38 – Updated: 2026-09-02 14:38Summary
Tornado parses application/x-www-form-urlencoded bodies with urllib.parse.parse_qs and does not pass max_num_fields. A body made almost entirely of separators produces tens of millions of fields, and the parse happens on the event loop before the handler runs, so a single request stalls the whole server.
Where it is
tornado/escape.py, at HEAD e530031405e2154654dedc4c84d5656b557ea310:
result = urllib.parse.parse_qs(
qs, keep_blank_values, strict_parsing, encoding="latin1", errors="strict"
)
max_num_fields is the parameter CPython added for exactly this, and it is absent.
The path to it is entirely server-side and pre-dispatch. RequestHandler._execute parses the body at tornado/web.py:1821, which reaches HTTPServerRequest._parse_body at tornado/httputil.py:636, and the urlencoded branch of parse_body_arguments calls parse_qs_bytes at tornado/httputil.py:1030.
The size that reaches it is bounded only by the body cap, which defaults to the stream's max_buffer_size of 104857600 at tornado/iostream.py:239, applied as the request body default at tornado/http1connection.py:136-140. A 100 MB body of separators is around fifty million fields.
Impact
Denial of service against the whole process, not one request. Tornado is single-threaded and the parse is synchronous on the event loop, so every other connection waits. No authentication is needed if any route accepts a form post, which is the normal case.
Suggested fix
Pass a bound:
result = urllib.parse.parse_qs(
qs, keep_blank_values, strict_parsing, encoding="latin1", errors="strict",
max_num_fields=max_num_fields,
)
with a conservative default and a way for applications to raise it. CPython raises ValueError when the limit is exceeded, which maps cleanly onto a 400.
Lowering the default body cap for urlencoded specifically would help too, since 100 MB of form fields is not a shape any real client sends.
Why I do not think this is a duplicate
The published tornado advisories cover out-of-bounds access in the C extension, unbounded accumulation of decompressed chunks in AsyncHTTPClient, the Authorization header surviving cross-origin redirects, credential leakage on curl handle reuse, and cookie attribute validation. The decompression one is the nearest in spirit and is on the client side; this is the server parsing a request body. The call is unchanged at HEAD.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 6.5.7"
},
"package": {
"ecosystem": "PyPI",
"name": "tornado"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "6.5.8"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-82397"
],
"database_specific": {
"cwe_ids": [
"CWE-1284",
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2026-09-02T14:38:43Z",
"nvd_published_at": "2026-08-31T22:17:22Z",
"severity": "HIGH"
},
"details": "## Summary\n\nTornado parses `application/x-www-form-urlencoded` bodies with `urllib.parse.parse_qs` and does not pass `max_num_fields`. A body made almost entirely of separators produces tens of millions of fields, and the parse happens on the event loop before the handler runs, so a single request stalls the whole server.\n\n## Where it is\n\n`tornado/escape.py`, at HEAD `e530031405e2154654dedc4c84d5656b557ea310`:\n\n```python\nresult = urllib.parse.parse_qs(\n qs, keep_blank_values, strict_parsing, encoding=\"latin1\", errors=\"strict\"\n)\n```\n\n`max_num_fields` is the parameter CPython added for exactly this, and it is absent.\n\nThe path to it is entirely server-side and pre-dispatch. `RequestHandler._execute` parses the body at `tornado/web.py:1821`, which reaches `HTTPServerRequest._parse_body` at `tornado/httputil.py:636`, and the urlencoded branch of `parse_body_arguments` calls `parse_qs_bytes` at `tornado/httputil.py:1030`.\n\nThe size that reaches it is bounded only by the body cap, which defaults to the stream\u0027s `max_buffer_size` of 104857600 at `tornado/iostream.py:239`, applied as the request body default at `tornado/http1connection.py:136-140`. A 100 MB body of separators is around fifty million fields.\n\n## Impact\n\nDenial of service against the whole process, not one request. Tornado is single-threaded and the parse is synchronous on the event loop, so every other connection waits. No authentication is needed if any route accepts a form post, which is the normal case.\n\n## Suggested fix\n\nPass a bound:\n\n```python\nresult = urllib.parse.parse_qs(\n qs, keep_blank_values, strict_parsing, encoding=\"latin1\", errors=\"strict\",\n max_num_fields=max_num_fields,\n)\n```\n\nwith a conservative default and a way for applications to raise it. CPython raises `ValueError` when the limit is exceeded, which maps cleanly onto a 400.\n\nLowering the default body cap for urlencoded specifically would help too, since 100 MB of form fields is not a shape any real client sends.\n\n## Why I do not think this is a duplicate\n\nThe published tornado advisories cover out-of-bounds access in the C extension, unbounded accumulation of decompressed chunks in `AsyncHTTPClient`, the Authorization header surviving cross-origin redirects, credential leakage on curl handle reuse, and cookie attribute validation. The decompression one is the nearest in spirit and is on the client side; this is the server parsing a request body. The call is unchanged at HEAD.",
"id": "GHSA-mpf4-983q-p7j4",
"modified": "2026-09-02T14:38:43Z",
"published": "2026-09-02T14:38:43Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/tornadoweb/tornado/security/advisories/GHSA-mpf4-983q-p7j4"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82397"
},
{
"type": "WEB",
"url": "https://github.com/tornadoweb/tornado/pull/3704"
},
{
"type": "WEB",
"url": "https://github.com/tornadoweb/tornado/commit/8d6363ed7b69d5f0da806efe34d256627a2191de"
},
{
"type": "PACKAGE",
"url": "https://github.com/tornadoweb/tornado"
},
{
"type": "WEB",
"url": "https://github.com/tornadoweb/tornado/releases/tag/v6.5.8"
}
],
"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": " Tornado: Urlencoded body parsing omits max_num_fields, so one request can stall the event loop"
}
GHSA-MPFC-53HR-W2MG
Vulnerability from github – Published: 2022-05-24 17:18 – Updated: 2024-04-04 02:50An issue was discovered in libexif before 0.6.22. An unrestricted size in handling Canon EXIF MakerNote data could lead to consumption of large amounts of compute time for decoding EXIF data.
{
"affected": [],
"aliases": [
"CVE-2020-13114"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-05-21T16:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in libexif before 0.6.22. An unrestricted size in handling Canon EXIF MakerNote data could lead to consumption of large amounts of compute time for decoding EXIF data.",
"id": "GHSA-mpfc-53hr-w2mg",
"modified": "2024-04-04T02:50:53Z",
"published": "2022-05-24T17:18:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-13114"
},
{
"type": "WEB",
"url": "https://github.com/libexif/libexif/commit/e6a38a1a23ba94d139b1fa2cd4519fdcfe3c9bab"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2020/05/msg00025.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202007-05"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4396-1"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00017.html"
}
],
"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-MPG4-RC92-VX8V
Vulnerability from github – Published: 2024-07-29 17:46 – Updated: 2024-10-11 14:13Summary
A ReDOS that exists on currency.js was discovered by Gauss Security Labs R&D team.
Details
https://github.com/NaturalIntelligence/fast-xml-parser/blob/v4.4.0/src/v5/valueParsers/currency.js#L10 contains a vulnerable regex
PoC
pass the following string '\t'.repeat(13337) + '.'
Impact
Denial of service during currency parsing in experimental version 5 of fast-xml-parser-library
https://gauss-security.com
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "fast-xml-parser"
},
"ranges": [
{
"events": [
{
"introduced": "4.3.5"
},
{
"fixed": "4.4.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-41818"
],
"database_specific": {
"cwe_ids": [
"CWE-1333",
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2024-07-29T17:46:16Z",
"nvd_published_at": "2024-07-29T16:15:05Z",
"severity": "HIGH"
},
"details": "### Summary\nA ReDOS that exists on currency.js was discovered by Gauss Security Labs R\u0026D team.\n\n### Details\nhttps://github.com/NaturalIntelligence/fast-xml-parser/blob/v4.4.0/src/v5/valueParsers/currency.js#L10 contains a vulnerable regex \n\n### PoC\npass the following string \u0027\\t\u0027.repeat(13337) + \u0027.\u0027\n\n### Impact\nDenial of service during currency parsing in experimental version 5 of fast-xml-parser-library\n\nhttps://gauss-security.com",
"id": "GHSA-mpg4-rc92-vx8v",
"modified": "2024-10-11T14:13:07Z",
"published": "2024-07-29T17:46:16Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-mpg4-rc92-vx8v"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41818"
},
{
"type": "WEB",
"url": "https://github.com/NaturalIntelligence/fast-xml-parser/commit/ba5f35e7680468acd7906eaabb2f69e28ed8b2aa"
},
{
"type": "WEB",
"url": "https://github.com/NaturalIntelligence/fast-xml-parser/commit/d0bfe8a3a2813a185f39591bbef222212d856164"
},
{
"type": "PACKAGE",
"url": "https://github.com/NaturalIntelligence/fast-xml-parser"
},
{
"type": "WEB",
"url": "https://github.com/NaturalIntelligence/fast-xml-parser/blob/master/src/v5/valueParsers/currency.js#L10"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "fast-xml-parser vulnerable to ReDOS at currency parsing"
}
GHSA-MPGP-FQH7-8MM2
Vulnerability from github – Published: 2025-03-31 21:32 – Updated: 2025-03-31 21:32A vulnerability classified as problematic was found in Open Asset Import Library Assimp 5.4.3. This vulnerability affects the function Assimp::MDLImporter::ParseTextureColorData of the file code/AssetLib/MDL/MDLMaterialLoader.cpp of the component MDL File Handler. The manipulation of the argument mWidth/mHeight leads to resource consumption. The attack can be initiated remotely. Upgrading to version 6.0 is able to address this issue. The name of the patch is 5d2a7482312db2e866439a8c05a07ce1e718bed1. It is recommended to apply a patch to fix this issue.
{
"affected": [],
"aliases": [
"CVE-2025-3016"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-404"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-31T21:15:53Z",
"severity": "MODERATE"
},
"details": "A vulnerability classified as problematic was found in Open Asset Import Library Assimp 5.4.3. This vulnerability affects the function Assimp::MDLImporter::ParseTextureColorData of the file code/AssetLib/MDL/MDLMaterialLoader.cpp of the component MDL File Handler. The manipulation of the argument mWidth/mHeight leads to resource consumption. The attack can be initiated remotely. Upgrading to version 6.0 is able to address this issue. The name of the patch is 5d2a7482312db2e866439a8c05a07ce1e718bed1. It is recommended to apply a patch to fix this issue.",
"id": "GHSA-mpgp-fqh7-8mm2",
"modified": "2025-03-31T21:32:51Z",
"published": "2025-03-31T21:32:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-3016"
},
{
"type": "WEB",
"url": "https://github.com/assimp/assimp/issues/6022"
},
{
"type": "WEB",
"url": "https://github.com/assimp/assimp/pull/6046"
},
{
"type": "WEB",
"url": "https://github.com/assimp/assimp/commit/5d2a7482312db2e866439a8c05a07ce1e718bed1"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.302068"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.302068"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.524593"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-MPQ4-RJJ8-FJPH
Vulnerability from github – Published: 2022-02-26 00:00 – Updated: 2022-03-07 13:42fscrypt through v0.3.2 creates a world-writable directory by default when setting up a filesystem, allowing unprivileged users to exhaust filesystem space. We recommend upgrading to fscrypt 0.3.3 or above and adjusting the permissions on existing fscrypt metadata directories where applicable.
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/google/fscrypt"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.3.3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-25326"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2022-03-01T19:25:48Z",
"nvd_published_at": "2022-02-25T11:15:00Z",
"severity": "MODERATE"
},
"details": "fscrypt through v0.3.2 creates a world-writable directory by default when setting up a filesystem, allowing unprivileged users to exhaust filesystem space. We recommend upgrading to fscrypt 0.3.3 or above and adjusting the permissions on existing fscrypt metadata directories where applicable.",
"id": "GHSA-mpq4-rjj8-fjph",
"modified": "2022-03-07T13:42:34Z",
"published": "2022-02-26T00:00:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-25326"
},
{
"type": "WEB",
"url": "https://github.com/google/fscrypt/pull/346"
},
{
"type": "WEB",
"url": "https://github.com/google/fscrypt/commit/91aa3ebf42032ca783c41f9ec25d885875f66ddb"
},
{
"type": "WEB",
"url": "https://github.com/google/fscrypt"
}
],
"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"
}
],
"summary": "Uncontrolled Resource Consumption in github.com/google/fscrypt"
}
GHSA-MQ2M-3XVQ-7J47
Vulnerability from github – Published: 2024-02-27 18:31 – Updated: 2024-08-28 00:32In Srelay (the SOCKS proxy and Relay) v.0.4.8p3, a specially crafted network payload can trigger a denial of service condition and disrupt the service.
{
"affected": [],
"aliases": [
"CVE-2024-25398"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-27T16:15:46Z",
"severity": "HIGH"
},
"details": "In Srelay (the SOCKS proxy and Relay) v.0.4.8p3, a specially crafted network payload can trigger a denial of service condition and disrupt the service.",
"id": "GHSA-mq2m-3xvq-7j47",
"modified": "2024-08-28T00:32:14Z",
"published": "2024-02-27T18:31:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-25398"
},
{
"type": "WEB",
"url": "https://github.com/Nivedita-22/SRELAY-exploit-writeup/blob/main/Srelay.md"
},
{
"type": "WEB",
"url": "https://sourceforge.net/projects/socks-relay"
}
],
"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"
}
]
}
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.