CWE-400
DiscouragedUncontrolled Resource Consumption
Abstraction: Class · Status: Draft
The product does not properly control the allocation and maintenance of a limited resource.
5570 vulnerabilities reference this CWE, most recent first.
GHSA-647R-22PP-RPP3
Vulnerability from github – Published: 2022-05-13 01:23 – Updated: 2022-05-13 01:23arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 3.17.2 on Intel processors does not ensure that the value in the CR4 control register remains the same after a VM entry, which allows host OS users to kill arbitrary processes or cause a denial of service (system disruption) by leveraging /dev/kvm access, as demonstrated by PR_SET_TSC prctl calls within a modified copy of QEMU.
{
"affected": [],
"aliases": [
"CVE-2014-3690"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2014-11-10T11:55:00Z",
"severity": "MODERATE"
},
"details": "arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 3.17.2 on Intel processors does not ensure that the value in the CR4 control register remains the same after a VM entry, which allows host OS users to kill arbitrary processes or cause a denial of service (system disruption) by leveraging /dev/kvm access, as demonstrated by PR_SET_TSC prctl calls within a modified copy of QEMU.",
"id": "GHSA-647r-22pp-rpp3",
"modified": "2022-05-13T01:23:39Z",
"published": "2022-05-13T01:23:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-3690"
},
{
"type": "WEB",
"url": "https://github.com/torvalds/linux/commit/d974baa398f34393db76be45f7d4d04fbdbb4a0a"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1153322"
},
{
"type": "WEB",
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d974baa398f34393db76be45f7d4d04fbdbb4a0a"
},
{
"type": "WEB",
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d974baa398f34393db76be45f7d4d04fbdbb4a0a"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00035.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2015-0290.html"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2015-0782.html"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2015-0864.html"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/60174"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2014/dsa-3060"
},
{
"type": "WEB",
"url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.2"
},
{
"type": "WEB",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2015:058"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2014/10/21/4"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2014/10/29/7"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/70691"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2417-1"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2418-1"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2419-1"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2420-1"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2421-1"
}
],
"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-647R-72HF-4VMH
Vulnerability from github – Published: 2026-06-03 00:30 – Updated: 2026-07-10 17:16A weakness has been identified in johnhuang316 code-index-mcp up to 2.14.0. Affected is the function is_safe_regex_pattern of the component search_code_advanced. Executing a manipulation of the argument regex can lead to inefficient regular expression complexity. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 2.14.1 is able to address this issue. This patch is called 25bc02fac74051ddae15ce79e952f00211b1ea6b. Upgrading the affected component is recommended.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "code-index-mcp"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.14.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-10692"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2026-07-10T17:16:29Z",
"nvd_published_at": "2026-06-03T00:16:31Z",
"severity": "LOW"
},
"details": "A weakness has been identified in johnhuang316 code-index-mcp up to 2.14.0. Affected is the function is_safe_regex_pattern of the component search_code_advanced. Executing a manipulation of the argument regex can lead to inefficient regular expression complexity. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 2.14.1 is able to address this issue. This patch is called 25bc02fac74051ddae15ce79e952f00211b1ea6b. Upgrading the affected component is recommended.",
"id": "GHSA-647r-72hf-4vmh",
"modified": "2026-07-10T17:16:29Z",
"published": "2026-06-03T00:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10692"
},
{
"type": "WEB",
"url": "https://github.com/johnhuang316/code-index-mcp/issues/84"
},
{
"type": "WEB",
"url": "https://github.com/johnhuang316/code-index-mcp/commit/25bc02fac74051ddae15ce79e952f00211b1ea6b"
},
{
"type": "PACKAGE",
"url": "https://github.com/johnhuang316/code-index-mcp"
},
{
"type": "WEB",
"url": "https://github.com/johnhuang316/code-index-mcp/releases/tag/v2.14.1"
},
{
"type": "WEB",
"url": "https://vuldb.com/cve/CVE-2026-10692"
},
{
"type": "WEB",
"url": "https://vuldb.com/submit/830786"
},
{
"type": "WEB",
"url": "https://vuldb.com/vuln/367961"
},
{
"type": "WEB",
"url": "https://vuldb.com/vuln/367961/cti"
}
],
"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:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
"type": "CVSS_V4"
}
],
"summary": "Code Index MCP is vulnerable to Uncontrolled Resource Consumption"
}
GHSA-6486-QV2G-XG8H
Vulnerability from github – Published: 2022-05-14 03:30 – Updated: 2025-04-12 13:04The state-machine implementation in OpenSSL 1.1.0 before 1.1.0a allocates memory before checking for an excessive length, which might allow remote attackers to cause a denial of service (memory consumption) via crafted TLS messages, related to statem/statem.c and statem/statem_lib.c.
{
"affected": [],
"aliases": [
"CVE-2016-6307"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2016-09-26T19:59:00Z",
"severity": "MODERATE"
},
"details": "The state-machine implementation in OpenSSL 1.1.0 before 1.1.0a allocates memory before checking for an excessive length, which might allow remote attackers to cause a denial of service (memory consumption) via crafted TLS messages, related to statem/statem.c and statem/statem_lib.c.",
"id": "GHSA-6486-qv2g-xg8h",
"modified": "2025-04-12T13:04:47Z",
"published": "2022-05-14T03:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-6307"
},
{
"type": "WEB",
"url": "https://bto.bluecoat.com/security-advisory/sa132"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"
},
{
"type": "WEB",
"url": "https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=4b390b6c3f8df925dc92a3dd6b022baa9a2f4650"
},
{
"type": "WEB",
"url": "https://git.openssl.org/?p=openssl.git;a=commit;h=4b390b6c3f8df925dc92a3dd6b022baa9a2f4650"
},
{
"type": "WEB",
"url": "https://www.openssl.org/news/secadv/20160922.txt"
},
{
"type": "WEB",
"url": "https://www.tenable.com/security/tns-2016-16"
},
{
"type": "WEB",
"url": "https://www.tenable.com/security/tns-2016-20"
},
{
"type": "WEB",
"url": "https://www.tenable.com/security/tns-2016-21"
},
{
"type": "WEB",
"url": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10759"
},
{
"type": "WEB",
"url": "http://www-01.ibm.com/support/docview.wss?uid=swg21995039"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/93152"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1036885"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-649W-QRG5-6785
Vulnerability from github – Published: 2025-10-14 18:30 – Updated: 2025-10-14 18:30A vulnerability in an AOS firmware binary allows an authenticated malicious actor to permanently delete necessary boot information. Successful exploitation may render the system unbootable, resulting in a Denial of Service that can only be resolved by replacing the affected hardware.
{
"affected": [],
"aliases": [
"CVE-2025-37139"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-14T17:15:40Z",
"severity": "MODERATE"
},
"details": "A vulnerability in an AOS firmware binary allows an authenticated malicious actor to permanently delete necessary boot information. Successful exploitation may render the system unbootable, resulting in a Denial of Service that can only be resolved by replacing the affected hardware.",
"id": "GHSA-649w-qrg5-6785",
"modified": "2025-10-14T18:30:28Z",
"published": "2025-10-14T18:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37139"
},
{
"type": "WEB",
"url": "https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw04957en_us\u0026docLocale=en_US"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-64G8-MC22-C972
Vulnerability from github – Published: 2022-07-21 00:00 – Updated: 2022-07-28 00:00An issue was discovered in H96 Smart TV Box H96 Pro Plus allows attackers to corrupt files via calls to the saveDeepColorAttr service.unk
{
"affected": [],
"aliases": [
"CVE-2020-21405"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-07-20T19:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in H96 Smart TV Box H96 Pro Plus allows attackers to corrupt files via calls to the saveDeepColorAttr service.unk",
"id": "GHSA-64g8-mc22-c972",
"modified": "2022-07-28T00:00:46Z",
"published": "2022-07-21T00:00:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-21405"
},
{
"type": "WEB",
"url": "https://github.com/helloworldxp/TVBoxBugs/blob/master/H96_Pro_Plus_SmartTV_Vulnerability"
}
],
"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-64HM-XQJ2-52Q2
Vulnerability from github – Published: 2026-07-22 00:31 – Updated: 2026-07-22 00:31Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are MySQL Server: 9.7.0-9.7.1; MySQL Cluster: 9.7.0-9.7.1. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
{
"affected": [],
"aliases": [
"CVE-2026-60324"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-21T22:17:35Z",
"severity": "MODERATE"
},
"details": "Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are MySQL Server: 9.7.0-9.7.1; MySQL Cluster: 9.7.0-9.7.1. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).",
"id": "GHSA-64hm-xqj2-52q2",
"modified": "2026-07-22T00:31:34Z",
"published": "2026-07-22T00:31:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-60324"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujul2026.html"
}
],
"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-64M8-FX32-3864
Vulnerability from github – Published: 2022-05-13 01:50 – Updated: 2022-05-13 01:50There is a stack consumption vulnerability in the res_http_websocket.so module of Asterisk through 13.23.0, 14.7.x through 14.7.7, and 15.x through 15.6.0 and Certified Asterisk through 13.21-cert2. It allows an attacker to crash Asterisk via a specially crafted HTTP request to upgrade the connection to a websocket.
{
"affected": [],
"aliases": [
"CVE-2018-17281"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-09-24T22:29:00Z",
"severity": "HIGH"
},
"details": "There is a stack consumption vulnerability in the res_http_websocket.so module of Asterisk through 13.23.0, 14.7.x through 14.7.7, and 15.x through 15.6.0 and Certified Asterisk through 13.21-cert2. It allows an attacker to crash Asterisk via a specially crafted HTTP request to upgrade the connection to a websocket.",
"id": "GHSA-64m8-fx32-3864",
"modified": "2022-05-13T01:50:33Z",
"published": "2022-05-13T01:50:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-17281"
},
{
"type": "WEB",
"url": "https://issues.asterisk.org/jira/browse/ASTERISK-28013"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00034.html"
},
{
"type": "WEB",
"url": "https://seclists.org/bugtraq/2018/Sep/53"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201811-11"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2018/dsa-4320"
},
{
"type": "WEB",
"url": "http://downloads.asterisk.org/pub/security/AST-2018-009.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/149453/Asterisk-Project-Security-Advisory-AST-2018-009.html"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2018/Sep/31"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/105389"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1041694"
}
],
"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"
}
]
}
GHSA-64MP-QFH8-Q4W5
Vulnerability from github – Published: 2025-08-13 18:31 – Updated: 2025-08-13 21:30A buffer overflow vulnerability has been discovered in Netis WF2880 v2.1.40207 in the FUN_00470c50 function of the cgitest.cgi file. Attackers can trigger this vulnerability by controlling the value of wl_mac_filter_set in the payload, which can cause the program to crash and lead to a Denial of Service (DoS) attack.
{
"affected": [],
"aliases": [
"CVE-2025-50615"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-13T18:15:31Z",
"severity": "HIGH"
},
"details": "A buffer overflow vulnerability has been discovered in Netis WF2880 v2.1.40207 in the FUN_00470c50 function of the cgitest.cgi file. Attackers can trigger this vulnerability by controlling the value of wl_mac_filter_set in the payload, which can cause the program to crash and lead to a Denial of Service (DoS) attack.",
"id": "GHSA-64mp-qfh8-q4w5",
"modified": "2025-08-13T21:30:28Z",
"published": "2025-08-13T18:31:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-50615"
},
{
"type": "WEB",
"url": "https://github.com/Chinesexilinyu/Netis-WF2880-cgitest.cgi-Vulnerability/tree/main/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"
}
]
}
GHSA-64PC-8JH2-HF6V
Vulnerability from github – Published: 2022-05-13 01:38 – Updated: 2022-05-13 01:38An issue has been found in PowerDNS Authoritative Server before 3.4.11 and 4.0.2 allowing a remote, unauthenticated attacker to cause a denial of service by opening a large number of TCP connections to the web server. If the web server runs out of file descriptors, it triggers an exception and terminates the whole PowerDNS process. While it's more complicated for an unauthorized attacker to make the web server run out of file descriptors since its connection will be closed just after being accepted, it might still be possible.
{
"affected": [],
"aliases": [
"CVE-2016-7072"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-09-10T17:29:00Z",
"severity": "HIGH"
},
"details": "An issue has been found in PowerDNS Authoritative Server before 3.4.11 and 4.0.2 allowing a remote, unauthenticated attacker to cause a denial of service by opening a large number of TCP connections to the web server. If the web server runs out of file descriptors, it triggers an exception and terminates the whole PowerDNS process. While it\u0027s more complicated for an unauthorized attacker to make the web server run out of file descriptors since its connection will be closed just after being accepted, it might still be possible.",
"id": "GHSA-64pc-8jh2-hf6v",
"modified": "2022-05-13T01:38:41Z",
"published": "2022-05-13T01:38:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-7072"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7072"
},
{
"type": "WEB",
"url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-03"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2017/dsa-3764"
}
],
"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"
}
]
}
GHSA-64RH-JRHH-C52H
Vulnerability from github – Published: 2022-05-24 16:57 – Updated: 2024-04-04 02:05In libstagefright, there is a possible resource exhaustion due to improper input validation. This could lead to remote denial of service with no additional execution privileges needed. User interaction is needed for exploitation. Product: AndroidVersions: Android-10Android ID: A-124330204
{
"affected": [],
"aliases": [
"CVE-2019-9349"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-09-27T19:15:00Z",
"severity": "HIGH"
},
"details": "In libstagefright, there is a possible resource exhaustion due to improper input validation. This could lead to remote denial of service with no additional execution privileges needed. User interaction is needed for exploitation. Product: AndroidVersions: Android-10Android ID: A-124330204",
"id": "GHSA-64rh-jrhh-c52h",
"modified": "2024-04-04T02:05:51Z",
"published": "2022-05-24T16:57:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-9349"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/android-10"
}
],
"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"
}
]
}
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.