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-WPX5-PXJJ-77QQ
Vulnerability from github – Published: 2026-05-12 21:31 – Updated: 2026-05-12 21:31CAI Content Credentials versions 0.78.2, 0.7.0 and earlier are affected by an Uncontrolled Resource Consumption vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to exhaust system resources, resulting in an application denial-of-service condition. Exploitation of this issue does not require user interaction.
{
"affected": [],
"aliases": [
"CVE-2026-34677"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-12T20:16:38Z",
"severity": "MODERATE"
},
"details": "CAI Content Credentials versions 0.78.2, 0.7.0 and earlier are affected by an Uncontrolled Resource Consumption vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to exhaust system resources, resulting in an application denial-of-service condition. Exploitation of this issue does not require user interaction.",
"id": "GHSA-wpx5-pxjj-77qq",
"modified": "2026-05-12T21:31:34Z",
"published": "2026-05-12T21:31:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34677"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/content-authenticity-sdk/apsb26-53.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WQ2P-Q66W-Q8GP
Vulnerability from github – Published: 2022-05-14 01:10 – Updated: 2024-02-22 16:11Apache Tomcat before 6.0.39, 7.x before 7.0.50, and 8.x before 8.0.0-RC10 processes chunked transfer coding without properly handling (1) a large total amount of chunked data or (2) whitespace characters in an HTTP header value within a trailer field, which allows remote attackers to cause a denial of service by streaming data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-3544.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.tomcat:tomcat"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "6.0.39"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.tomcat:tomcat"
},
"ranges": [
{
"events": [
{
"introduced": "7.0.0"
},
{
"fixed": "7.0.50"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.tomcat:tomcat"
},
"ranges": [
{
"events": [
{
"introduced": "8.0.0-RC1"
},
{
"fixed": "8.0.0-RC10"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2013-4322"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2023-08-17T23:32:20Z",
"nvd_published_at": "2014-02-26T14:55:00Z",
"severity": "MODERATE"
},
"details": "Apache Tomcat before 6.0.39, 7.x before 7.0.50, and 8.x before 8.0.0-RC10 processes chunked transfer coding without properly handling (1) a large total amount of chunked data or (2) whitespace characters in an HTTP header value within a trailer field, which allows remote attackers to cause a denial of service by streaming data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-3544.",
"id": "GHSA-wq2p-q66w-q8gp",
"modified": "2024-02-22T16:11:25Z",
"published": "2022-05-14T01:10:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4322"
},
{
"type": "WEB",
"url": "https://github.com/apache/tomcat/commit/70dc3b279f7c99136c2c51bce8812508b4893c8b"
},
{
"type": "WEB",
"url": "https://github.com/apache/tomcat/commit/72613a0e2f88af789c2acc7093c82ff02b95b6d1"
},
{
"type": "WEB",
"url": "https://github.com/apache/tomcat/commit/a91516b80deaf1d0c6e04a7931765fdac34c4ccd"
},
{
"type": "WEB",
"url": "https://github.com/apache/tomcat/commit/b8cb9f5f91e9210ca107fd80f3e6acd47531daa7"
},
{
"type": "WEB",
"url": "https://github.com/apache/tomcat/commit/bed3a1a0d06a3c787183c6e90f326bbe17e49dd4"
},
{
"type": "WEB",
"url": "https://github.com/apache/tomcat/commit/d6a9898125f34e593de426e8c7dabb0f224fc00f"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20161024220018/http://secunia.com/advisories/59724"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20161024215804/http://secunia.com/advisories/59675"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20161024215639/http://secunia.com/advisories/59722"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20161024215620/http://secunia.com/advisories/59036"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20151023203543/http://secunia.com/advisories/59873"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20150503090027/http://www.securityfocus.com/archive/1/534161/100/0/threaded"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20140315211337/http://www.securityfocus.com/bid/65767"
},
{
"type": "WEB",
"url": "https://rhn.redhat.com/errata/RHSA-2014-0686.html"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b@%3Cdev.tomcat.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c@%3Cdev.tomcat.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb@%3Cdev.tomcat.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95@%3Cdev.tomcat.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b@%3Cdev.tomcat.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113@%3Cdev.tomcat.apache.org%3E"
},
{
"type": "WEB",
"url": "https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04851013"
},
{
"type": "PACKAGE",
"url": "https://github.com/apache/tomcat"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1069905"
},
{
"type": "WEB",
"url": "http://advisories.mageia.org/MGASA-2014-0148.html"
},
{
"type": "WEB",
"url": "http://marc.info/?l=bugtraq\u0026m=144498216801440\u0026w=2"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2014/Dec/23"
},
{
"type": "WEB",
"url": "http://svn.apache.org/viewvc?view=revision\u0026revision=1521834"
},
{
"type": "WEB",
"url": "http://svn.apache.org/viewvc?view=revision\u0026revision=1521864"
},
{
"type": "WEB",
"url": "http://svn.apache.org/viewvc?view=revision\u0026revision=1549522"
},
{
"type": "WEB",
"url": "http://svn.apache.org/viewvc?view=revision\u0026revision=1549523"
},
{
"type": "WEB",
"url": "http://svn.apache.org/viewvc?view=revision\u0026revision=1556540"
},
{
"type": "WEB",
"url": "http://tomcat.apache.org/security-6.html"
},
{
"type": "WEB",
"url": "http://tomcat.apache.org/security-7.html"
},
{
"type": "WEB",
"url": "http://tomcat.apache.org/security-8.html"
},
{
"type": "WEB",
"url": "http://www-01.ibm.com/support/docview.wss?uid=swg21667883"
},
{
"type": "WEB",
"url": "http://www-01.ibm.com/support/docview.wss?uid=swg21675886"
},
{
"type": "WEB",
"url": "http://www-01.ibm.com/support/docview.wss?uid=swg21677147"
},
{
"type": "WEB",
"url": "http://www-01.ibm.com/support/docview.wss?uid=swg21678113"
},
{
"type": "WEB",
"url": "http://www-01.ibm.com/support/docview.wss?uid=swg21678231"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2016/dsa-3530"
},
{
"type": "WEB",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2015:052"
},
{
"type": "WEB",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2015:084"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2130-1"
},
{
"type": "WEB",
"url": "http://www.vmware.com/security/advisories/VMSA-2014-0008.html"
},
{
"type": "WEB",
"url": "http://www.vmware.com/security/advisories/VMSA-2014-0012.html"
}
],
"schema_version": "1.4.0",
"severity": [],
"summary": "Apache Tomcat Denial of Service vulnerability"
}
GHSA-WQ3V-5978-56CH
Vulnerability from github – Published: 2022-05-17 04:52 – Updated: 2025-04-11 04:19The tcp_rcv_state_process function in net/ipv4/tcp_input.c in the Linux kernel before 3.2.24 allows remote attackers to cause a denial of service (kernel resource consumption) via a flood of SYN+FIN TCP packets, a different vulnerability than CVE-2012-2663.
{
"affected": [],
"aliases": [
"CVE-2012-6638"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2014-02-15T14:57:00Z",
"severity": "HIGH"
},
"details": "The tcp_rcv_state_process function in net/ipv4/tcp_input.c in the Linux kernel before 3.2.24 allows remote attackers to cause a denial of service (kernel resource consumption) via a flood of SYN+FIN TCP packets, a different vulnerability than CVE-2012-2663.",
"id": "GHSA-wq3v-5978-56ch",
"modified": "2025-04-11T04:19:11Z",
"published": "2022-05-17T04:52:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2012-6638"
},
{
"type": "WEB",
"url": "https://github.com/torvalds/linux/commit/fdf5af0daf8019cec2396cdef8fb042d80fe71fa"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=826702"
},
{
"type": "WEB",
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fdf5af0daf8019cec2396cdef8fb042d80fe71fa"
},
{
"type": "WEB",
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fdf5af0daf8019cec2396cdef8fb042d80fe71fa"
},
{
"type": "WEB",
"url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.24"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-WQ8H-Q5G7-J5PR
Vulnerability from github – Published: 2022-05-24 17:25 – Updated: 2022-05-24 17:25ise smart connect KNX Vaillant 1.2.839 contain a Denial of Service.
{
"affected": [],
"aliases": [
"CVE-2019-19643"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-08-14T15:15:00Z",
"severity": "MODERATE"
},
"details": "ise smart connect KNX Vaillant 1.2.839 contain a Denial of Service.",
"id": "GHSA-wq8h-q5g7-j5pr",
"modified": "2022-05-24T17:25:42Z",
"published": "2022-05-24T17:25:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-19643"
},
{
"type": "WEB",
"url": "https://psytester.github.io/CVE-2019-19643"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-WQCH-XFXH-VRR4
Vulnerability from github – Published: 2025-11-25 14:20 – Updated: 2025-11-25 18:09Impact
body-parser 2.2.0 is vulnerable to denial of service due to inefficient handling of URL-encoded bodies with very large numbers of parameters. An attacker can send payloads containing thousands of parameters within the default 100KB request size limit, causing elevated CPU and memory usage. This can lead to service slowdown or partial outages under sustained malicious traffic.
Patches
This issue is addressed in version 2.2.1.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "body-parser"
},
"ranges": [
{
"events": [
{
"introduced": "2.2.0"
},
{
"fixed": "2.2.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-13466"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2025-11-25T14:20:21Z",
"nvd_published_at": "2025-11-24T19:15:46Z",
"severity": "MODERATE"
},
"details": "### Impact\n\nbody-parser 2.2.0 is vulnerable to denial of service due to inefficient handling of URL-encoded bodies with very large numbers of parameters. An attacker can send payloads containing thousands of parameters within the default 100KB request size limit, causing elevated CPU and memory usage. This can lead to service slowdown or partial outages under sustained malicious traffic.\n\n### Patches\n\nThis issue is addressed in version 2.2.1.",
"id": "GHSA-wqch-xfxh-vrr4",
"modified": "2025-11-25T18:09:52Z",
"published": "2025-11-25T14:20:21Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/expressjs/body-parser/security/advisories/GHSA-wqch-xfxh-vrr4"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-13466"
},
{
"type": "WEB",
"url": "https://github.com/expressjs/body-parser/commit/b204886a6744b0b6d297cd0e849d75de836f3b63"
},
{
"type": "PACKAGE",
"url": "https://github.com/expressjs/body-parser"
},
{
"type": "WEB",
"url": "https://github.com/expressjs/body-parser/releases/tag/v2.2.1"
}
],
"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: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:L/E:P",
"type": "CVSS_V4"
}
],
"summary": "body-parser is vulnerable to denial of service when url encoding is used"
}
GHSA-WQFR-R3Q7-6HMM
Vulnerability from github – Published: 2022-02-12 00:01 – Updated: 2022-09-02 00:01StarWind iSCSI SAN before 3.5 build 2007-08-09 allows socket exhaustion.
{
"affected": [],
"aliases": [
"CVE-2007-20001"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-02-06T21:15:00Z",
"severity": "HIGH"
},
"details": "StarWind iSCSI SAN before 3.5 build 2007-08-09 allows socket exhaustion.",
"id": "GHSA-wqfr-r3q7-6hmm",
"modified": "2022-09-02T00:01:11Z",
"published": "2022-02-12T00:01:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2007-20001"
},
{
"type": "WEB",
"url": "https://www.starwindsoftware.com/security/sw-20070601-0001"
}
],
"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-WQH8-3GRF-J8JP
Vulnerability from github – Published: 2023-05-26 18:30 – Updated: 2024-04-04 04:20mp4v2 v2.1.2 was discovered to contain a memory leak via the class MP4BytesProperty.
{
"affected": [],
"aliases": [
"CVE-2023-33720"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-05-26T16:15:10Z",
"severity": "MODERATE"
},
"details": "mp4v2 v2.1.2 was discovered to contain a memory leak via the class MP4BytesProperty.",
"id": "GHSA-wqh8-3grf-j8jp",
"modified": "2024-04-04T04:20:46Z",
"published": "2023-05-26T18:30:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-33720"
},
{
"type": "WEB",
"url": "https://github.com/enzo1982/mp4v2/issues/36"
}
],
"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:H",
"type": "CVSS_V3"
}
]
}
GHSA-WQJ7-458Q-4H8G
Vulnerability from github – Published: 2026-05-11 21:31 – Updated: 2026-05-12 15:31A denial of service issue was addressed by removing the vulnerable code. This issue is fixed in macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. An app may be able to modify protected parts of the file system.
{
"affected": [],
"aliases": [
"CVE-2026-28908"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-11T21:18:53Z",
"severity": "HIGH"
},
"details": "A denial of service issue was addressed by removing the vulnerable code. This issue is fixed in macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. An app may be able to modify protected parts of the file system.",
"id": "GHSA-wqj7-458q-4h8g",
"modified": "2026-05-12T15:31:33Z",
"published": "2026-05-11T21:31:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28908"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/127115"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/127116"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/127117"
}
],
"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-WQVQ-4WVG-4F5C
Vulnerability from github – Published: 2022-05-24 19:13 – Updated: 2022-06-29 00:00A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 14.5 and iPadOS 14.5. Processing a maliciously crafted audio file may lead to arbitrary code execution.
{
"affected": [],
"aliases": [
"CVE-2021-30742"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-09-08T14:15:00Z",
"severity": "HIGH"
},
"details": "A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 14.5 and iPadOS 14.5. Processing a maliciously crafted audio file may lead to arbitrary code execution.",
"id": "GHSA-wqvq-4wvg-4f5c",
"modified": "2022-06-29T00:00:50Z",
"published": "2022-05-24T19:13:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-30742"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT212317"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WQXW-8H5G-HQ56
Vulnerability from github – Published: 2023-02-02 01:33 – Updated: 2023-02-15 17:35Impact
Unsanitized input flows into Strategy match operation (EXIST), where it is used to build a regular expression. This may result in a Regular expression Denial of Service attack (reDOS).
Patches
Patched in 3.1.4
Workarounds
Avoid using Strategy settings that use REGEX in conjunction with EXIST and NOT_EXIST operations.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "switcher-client"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.1.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-23925"
],
"database_specific": {
"cwe_ids": [
"CWE-1333",
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2023-02-02T01:33:06Z",
"nvd_published_at": "2023-02-03T20:15:00Z",
"severity": "HIGH"
},
"details": "### Impact\nUnsanitized input flows into Strategy match operation (EXIST), where it is used to build a regular expression. This may result in a Regular expression Denial of Service attack (reDOS).\n\n### Patches\nPatched in 3.1.4\n\n### Workarounds\nAvoid using Strategy settings that use REGEX in conjunction with EXIST and NOT_EXIST operations.",
"id": "GHSA-wqxw-8h5g-hq56",
"modified": "2023-02-15T17:35:36Z",
"published": "2023-02-02T01:33:06Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/switcherapi/switcher-client-master/security/advisories/GHSA-wqxw-8h5g-hq56"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-23925"
},
{
"type": "WEB",
"url": "https://github.com/switcherapi/switcher-client-master/commit/374752563d6ce9353ee592b40c809c8136f24930"
},
{
"type": "PACKAGE",
"url": "https://github.com/switcherapi/switcher-client-master"
},
{
"type": "WEB",
"url": "https://github.com/switcherapi/switcher-client-master/releases/tag/v3.1.4"
}
],
"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": "Switcher Client contains Regular Expression Denial of Service (ReDoS)"
}
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.