CWE-400
DiscouragedUncontrolled Resource Consumption
Abstraction: Class · Status: Draft
The product does not properly control the allocation and maintenance of a limited resource.
6465 vulnerabilities reference this CWE, most recent first.
GHSA-RR6C-95PP-CPGF
Vulnerability from github – Published: 2022-05-24 19:09 – Updated: 2022-07-13 00:01report_vbuild in report.c in Fetchmail before 6.4.20 sometimes omits initialization of the vsnprintf va_list argument, which might allow mail servers to cause a denial of service or possibly have unspecified other impact via long error messages. NOTE: it is unclear whether use of Fetchmail on any realistic platform results in an impact beyond an inconvenience to the client user.
{
"affected": [],
"aliases": [
"CVE-2021-36386"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-909"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-07-30T14:15:00Z",
"severity": "HIGH"
},
"details": "report_vbuild in report.c in Fetchmail before 6.4.20 sometimes omits initialization of the vsnprintf va_list argument, which might allow mail servers to cause a denial of service or possibly have unspecified other impact via long error messages. NOTE: it is unclear whether use of Fetchmail on any realistic platform results in an impact beyond an inconvenience to the client user.",
"id": "GHSA-rr6c-95pp-cpgf",
"modified": "2022-07-13T00:01:30Z",
"published": "2022-05-24T19:09:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-36386"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AGYO5AHSXTCKA4NQC2Z4H3XMMYNAGC77"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OIXKO6QW3AUHGJVWKJXBCOVBYJUJRBFC"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202209-14"
},
{
"type": "WEB",
"url": "https://www.fetchmail.info/fetchmail-SA-2021-01.txt"
},
{
"type": "WEB",
"url": "https://www.fetchmail.info/security.html"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2021/07/28/5"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2021/08/09/1"
}
],
"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-RR6Q-FMV4-P23M
Vulnerability from github – Published: 2026-09-15 12:31 – Updated: 2026-09-15 12:31Affected versions of MISP do not consistently apply the existing authentication-failure logging throttle.
Two API authentication failure branches wrote directly to the Log model:
- API requests with no authentication key; - requests supplying an API key with an incorrect length
Unlike other authentication failures, these paths bypassed _shouldLog(), so every request could create another durable auth_fail entry.
Version affected: ≤2.5.45
{
"affected": [],
"aliases": [
"CVE-2026-92003"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-15T12:17:55Z",
"severity": "MODERATE"
},
"details": "Affected versions of MISP do not consistently apply the existing authentication-failure logging throttle.\n\n\nTwo API authentication failure branches wrote directly to the Log model:\n\n\u2003- API requests with no authentication key;\n\u2003- requests supplying an API key with an incorrect length\n\n\n\n\nUnlike other authentication failures, these paths bypassed _shouldLog(), so every request could create another durable auth_fail entry.\n\nVersion affected: \u22642.5.45",
"id": "GHSA-rr6q-fmv4-p23m",
"modified": "2026-09-15T12:31:47Z",
"published": "2026-09-15T12:31:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92003"
},
{
"type": "WEB",
"url": "https://github.com/MISP/MISP/commit/2bf887433"
}
],
"schema_version": "1.4.0",
"severity": [
{
"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: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-RR7G-HMC4-3PM3
Vulnerability from github – Published: 2022-05-14 02:21 – Updated: 2022-05-14 02:21An issue was discovered in the HDF HDF5 1.10.2 library. Excessive stack consumption has been detected in the function H5P__get_cb() in H5Pint.c during an attempted parse of a crafted HDF file. This results in denial of service.
{
"affected": [],
"aliases": [
"CVE-2018-15671"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-08-21T23:29:00Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in the HDF HDF5 1.10.2 library. Excessive stack consumption has been detected in the function H5P__get_cb() in H5Pint.c during an attempted parse of a crafted HDF file. This results in denial of service.",
"id": "GHSA-rr7g-hmc4-3pm3",
"modified": "2022-05-14T02:21:24Z",
"published": "2022-05-14T02:21:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-15671"
},
{
"type": "WEB",
"url": "https://github.com/SegfaultMasters/covering360/tree/master/HDF5#stack-overflow---stackoverflow_h5p__get_cb"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-RR89-WX3J-43CC
Vulnerability from github – Published: 2026-05-09 12:30 – Updated: 2026-05-09 12:30A flaw has been found in Open5GS up to 2.7.7. This impacts the function _gtpv1_u_recv_cb of the file src/upf/gtp-path.c of the component UPF. Executing a manipulation can lead to resource consumption. The attack may be performed from remote. The project was informed of the problem early through an issue report but has not responded yet.
{
"affected": [],
"aliases": [
"CVE-2026-8187"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-09T11:16:28Z",
"severity": "MODERATE"
},
"details": "A flaw has been found in Open5GS up to 2.7.7. This impacts the function _gtpv1_u_recv_cb of the file src/upf/gtp-path.c of the component UPF. Executing a manipulation can lead to resource consumption. The attack may be performed from remote. The project was informed of the problem early through an issue report but has not responded yet.",
"id": "GHSA-rr89-wx3j-43cc",
"modified": "2026-05-09T12:30:20Z",
"published": "2026-05-09T12:30:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8187"
},
{
"type": "WEB",
"url": "https://github.com/open5gs/open5gs/issues/4492"
},
{
"type": "WEB",
"url": "https://github.com/open5gs/open5gs"
},
{
"type": "WEB",
"url": "https://vuldb.com/submit/800025"
},
{
"type": "WEB",
"url": "https://vuldb.com/vuln/362339"
},
{
"type": "WEB",
"url": "https://vuldb.com/vuln/362339/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: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-RR8Q-QWRV-9PF6
Vulnerability from github – Published: 2026-05-13 21:32 – Updated: 2026-05-13 21:32Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack can take upwards of half an hour to crash the server.
{
"affected": [],
"aliases": [
"CVE-2026-33378"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-13T20:16:20Z",
"severity": "MODERATE"
},
"details": "Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack can take upwards of half an hour to crash the server.",
"id": "GHSA-rr8q-qwrv-9pf6",
"modified": "2026-05-13T21:32:06Z",
"published": "2026-05-13T21:32:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33378"
},
{
"type": "WEB",
"url": "https://grafana.com/security/security-advisories/cve-2026-33378"
}
],
"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-RR9H-QQWQ-GM72
Vulnerability from github – Published: 2023-04-24 15:30 – Updated: 2025-11-21 21:30Ribose RNP before 0.16.3 may hang when the input is malformed.
{
"affected": [],
"aliases": [
"CVE-2023-29479"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-04-24T15:15:08Z",
"severity": "MODERATE"
},
"details": "Ribose RNP before 0.16.3 may hang when the input is malformed.",
"id": "GHSA-rr9h-qqwq-gm72",
"modified": "2025-11-21T21:30:15Z",
"published": "2023-04-24T15:30:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-29479"
},
{
"type": "WEB",
"url": "https://cve.ribose.com/advisories/ra-2023-04-11"
},
{
"type": "WEB",
"url": "https://open.ribose.com/advisories/ra-2023-04-11"
},
{
"type": "WEB",
"url": "https://www.rnpgp.org/blog/2023-04-13-rnp-release-0-16-3"
}
],
"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"
}
]
}
GHSA-RRCR-PM6P-QW8V
Vulnerability from github – Published: 2025-10-21 21:33 – Updated: 2025-10-21 21:33Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 9.0.0-9.4.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
{
"affected": [],
"aliases": [
"CVE-2025-53067"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-21T20:20:47Z",
"severity": "MODERATE"
},
"details": "Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 9.0.0-9.4.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).",
"id": "GHSA-rrcr-pm6p-qw8v",
"modified": "2025-10-21T21:33:42Z",
"published": "2025-10-21T21:33:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-53067"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuoct2025.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-RRJX-38J3-WX7P
Vulnerability from github – Published: 2023-04-05 21:30 – Updated: 2023-04-12 21:30An issue has been discovered in GitLab affecting all versions from 15.5 before 15.8.5, all versions starting from 15.9 before 15.9.4, all versions starting from 15.10 before 15.10.1. Due to improper permissions checks it was possible for an unauthorised user to remove an issue from an epic.
{
"affected": [],
"aliases": [
"CVE-2023-1071"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-863"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-04-05T21:15:00Z",
"severity": "MODERATE"
},
"details": "An issue has been discovered in GitLab affecting all versions from 15.5 before 15.8.5, all versions starting from 15.9 before 15.9.4, all versions starting from 15.10 before 15.10.1. Due to improper permissions checks it was possible for an unauthorised user to remove an issue from an epic.",
"id": "GHSA-rrjx-38j3-wx7p",
"modified": "2023-04-12T21:30:21Z",
"published": "2023-04-05T21:30:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1071"
},
{
"type": "WEB",
"url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-1071.json"
},
{
"type": "WEB",
"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/385434"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-RRQH-93C8-J966
Vulnerability from github – Published: 2025-07-30 13:20 – Updated: 2025-11-03 21:34Summary
A denial-of-service vulnerability exists in ruby-saml even with the message_max_bytesize setting configured. The vulnerability occurs because the SAML response is validated for Base64 format prior to checking the message size, leading to potential resource exhaustion.
Details
ruby-saml includes a message_max_bytesize setting intended to prevent DOS attacks and decompression bombs. However, this protection is ineffective in some cases due to the order of operations in the code:
https://github.com/SAML-Toolkits/ruby-saml/blob/fbbedc978300deb9355a8e505849666974ef2e67/lib/onelogin/ruby-saml/saml_message.rb
def decode_raw_saml(saml, settings = nil)
return saml unless base64_encoded?(saml) # <--- Issue here. Should be moved after next code block.
settings = OneLogin::RubySaml::Settings.new if settings.nil?
if saml.bytesize > settings.message_max_bytesize
raise ValidationError.new("Encoded SAML Message exceeds " + settings.message_max_bytesize.to_s + " bytes, so was rejected")
end
decoded = decode(saml)
...
end
The vulnerability is in the execution order. Prior to checking bytesize the base64_encoded? function performs regex matching on the entire input string:
!!string.gsub(/[\r\n]|\\r|\\n|\s/, "").match(BASE64_FORMAT)
Impact
What kind of vulnerability is it? Who is impacted?
When successfully exploited, this vulnerability can lead to:
- Excessive memory consumption
- High CPU utilization
- Application slowdown or unresponsiveness
- Complete application crash in severe cases
- Potential denial of service for legitimate users
All applications using ruby-saml with SAML configured and enabled are vulnerable.
Potential Solution
Reorder the validation steps to ensure max bytesize is checked first
def decode_raw_saml(saml, settings = nil)
settings = OneLogin::RubySaml::Settings.new if settings.nil?
if saml.bytesize > settings.message_max_bytesize
raise ValidationError.new("Encoded SAML Message exceeds " + settings.message_max_bytesize.to_s + " bytes, so was rejected")
end
return saml unless base64_encoded?(saml)
decoded = decode(saml)
...
end
{
"affected": [
{
"package": {
"ecosystem": "RubyGems",
"name": "ruby-saml"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.18.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-54572"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"github_reviewed": true,
"github_reviewed_at": "2025-07-30T13:20:05Z",
"nvd_published_at": "2025-07-30T14:15:29Z",
"severity": "MODERATE"
},
"details": "### Summary\nA denial-of-service vulnerability exists in ruby-saml even with the message_max_bytesize setting configured. The vulnerability occurs because the SAML response is validated for Base64 format prior to checking the message size, leading to potential resource exhaustion.\n\n### Details\n`ruby-saml` includes a `message_max_bytesize` setting intended to prevent DOS attacks and decompression bombs. However, this protection is ineffective in some cases due to the order of operations in the code:\n\nhttps://github.com/SAML-Toolkits/ruby-saml/blob/fbbedc978300deb9355a8e505849666974ef2e67/lib/onelogin/ruby-saml/saml_message.rb\n\n```ruby\n def decode_raw_saml(saml, settings = nil)\n return saml unless base64_encoded?(saml) # \u003c--- Issue here. Should be moved after next code block.\n\n settings = OneLogin::RubySaml::Settings.new if settings.nil?\n if saml.bytesize \u003e settings.message_max_bytesize\n raise ValidationError.new(\"Encoded SAML Message exceeds \" + settings.message_max_bytesize.to_s + \" bytes, so was rejected\")\n end\n\n decoded = decode(saml)\n ...\n end\n```\n\nThe vulnerability is in the execution order. Prior to checking bytesize the `base64_encoded?` function performs regex matching on the entire input string:\n\n```ruby\n!!string.gsub(/[\\r\\n]|\\\\r|\\\\n|\\s/, \"\").match(BASE64_FORMAT)\n```\n\n### Impact\n_What kind of vulnerability is it? Who is impacted?_\n\nWhen successfully exploited, this vulnerability can lead to:\n\n- Excessive memory consumption\n- High CPU utilization\n- Application slowdown or unresponsiveness\n- Complete application crash in severe cases\n- Potential denial of service for legitimate users\n\nAll applications using `ruby-saml` with SAML configured and enabled are vulnerable.\n\n### Potential Solution\n\nReorder the validation steps to ensure max bytesize is checked first\n\n```ruby\ndef decode_raw_saml(saml, settings = nil)\n settings = OneLogin::RubySaml::Settings.new if settings.nil?\n\n if saml.bytesize \u003e settings.message_max_bytesize\n raise ValidationError.new(\"Encoded SAML Message exceeds \" + settings.message_max_bytesize.to_s + \" bytes, so was rejected\")\n end\n \n return saml unless base64_encoded?(saml)\n decoded = decode(saml)\n ...\nend\n```",
"id": "GHSA-rrqh-93c8-j966",
"modified": "2025-11-03T21:34:17Z",
"published": "2025-07-30T13:20:05Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-rrqh-93c8-j966"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54572"
},
{
"type": "WEB",
"url": "https://github.com/SAML-Toolkits/ruby-saml/pull/770"
},
{
"type": "WEB",
"url": "https://github.com/SAML-Toolkits/ruby-saml/commit/38ef5dd1ce17514e202431f569c4f5633e6c2709"
},
{
"type": "PACKAGE",
"url": "https://github.com/SAML-Toolkits/ruby-saml"
},
{
"type": "WEB",
"url": "https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.1"
},
{
"type": "WEB",
"url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/ruby-saml/CVE-2025-54572.yml"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/09/msg00001.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"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": "Ruby SAML DOS vulnerability with large SAML response"
}
GHSA-RRQV-QHMG-W4F2
Vulnerability from github – Published: 2022-02-12 00:01 – Updated: 2022-09-02 00:01StarWind iSCSI SAN before 6.0 build 2013-03-20 allows a memory leak.
{
"affected": [],
"aliases": [
"CVE-2013-20004"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-02-06T21:15:00Z",
"severity": "CRITICAL"
},
"details": "StarWind iSCSI SAN before 6.0 build 2013-03-20 allows a memory leak.",
"id": "GHSA-rrqv-qhmg-w4f2",
"modified": "2022-09-02T00:01:11Z",
"published": "2022-02-12T00:01:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-20004"
},
{
"type": "WEB",
"url": "https://www.starwindsoftware.com/security/sw-20130215-0001"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.