{
	"id": "3e801bf0-b062-4bed-949b-31944ced3e34",
	"created_at": "2026-04-06T00:08:32.165514Z",
	"updated_at": "2026-04-10T13:13:08.214787Z",
	"deleted_at": null,
	"sha1_hash": "07a8270842b2b7903ff5b07ffe39f736a3b3ad24",
	"title": "CAPEC-649: Adding a Space to a File Extension (Version 3.9)",
	"llm_title": "",
	"authors": "",
	"file_creation_date": "0001-01-01T00:00:00Z",
	"file_modification_date": "0001-01-01T00:00:00Z",
	"file_size": 41120,
	"plain_text": "CAPEC-649: Adding a Space to a File Extension (Version 3.9)\r\nArchived: 2026-04-05 16:38:04 UTC\r\n Description\r\nAn adversary adds a space character to the end of a file extension and takes advantage of an application that does not\r\nproperly neutralize trailing special elements in file names. This extra space, which can be difficult for a user to notice,\r\naffects which default application is used to operate on the file and can be leveraged by the adversary to control execution.\r\n Likelihood Of Attack\r\n Typical Severity\r\n Relationships\r\nThis table shows the other attack patterns and high level categories that are related to this attack pattern. These\r\nrelationships are defined as ChildOf and ParentOf, and give insight to similar items that may exist at higher and lower levels\r\nof abstraction. In addition, relationships such as CanFollow, PeerOf, and CanAlsoBe are defined to show similar attack\r\npatterns that the user may want to explore.\r\nNature Type\r\nChildOf Standard Attack Pattern - A standard level attack pattern in CAPEC is focused on a specific methodology or technique used in an attack. It\r\nThis table shows the views that this attack pattern belongs to and top level categories within that view.\r\n Prerequisites\r\nThe use of the file must be controlled by the file extension.\r\n Consequences\r\nThis table specifies different individual consequences associated with the attack pattern. The Scope identifies the security\r\nproperty that is violated, while the Impact describes the negative technical impact that arises if an adversary succeeds in\r\ntheir attack. The Likelihood provides information about how likely the specific consequence is expected to be seen relative\r\nto the other consequences in the list. For example, there may be high likelihood that a pattern will be used to achieve a\r\ncertain impact, but a low likelihood that it will be exploited to achieve a different impact.\r\nScope Impact Likelihood\r\nConfidentiality\r\nIntegrity\r\nAvailability\r\nExecute Unauthorized Commands\r\n Mitigations\r\nFile extensions should be checked to see if non-visible characters are being included.\r\n Taxonomy Mappings\r\nCAPEC mappings to ATT\u0026CK techniques leverage an inheritance model to streamline and minimize direct\r\nCAPEC/ATT\u0026CK mappings. Inheritance of a mapping is indicated by text stating that the parent CAPEC has relevant\r\nATT\u0026CK mappings. Note that the ATT\u0026CK Enterprise Framework does not use an inheritance model as part of the\r\nmapping to CAPEC.\r\nRelevant to the ATT\u0026CK taxonomy mapping (also see parent)\r\nEntry ID Entry Name\r\n1036.006 Masquerading:Space after Filename\r\nhttps://capec.mitre.org/data/definitions/649.html\r\nPage 1 of 2\n\nContent History\r\nSubmissions\r\nSubmission Date Submitter Organization\r\n2018-05-31\r\n(Version 2.11)\r\nCAPEC Content Team The MITRE Corporation\r\nModifications\r\nModification Date Modifier Organization\r\n2019-04-04\r\n(Version 3.1)\r\nCAPEC Content Team The MITRE Corporation\r\nUpdated Related_Weaknesses\r\n2020-07-30\r\n(Version 3.3)\r\nCAPEC Content Team The MITRE Corporation\r\nUpdated Taxonomy_Mappings\r\nMore information is available — Please select a different filter.\r\nSource: https://capec.mitre.org/data/definitions/649.html\r\nhttps://capec.mitre.org/data/definitions/649.html\r\nPage 2 of 2",
	"extraction_quality": 1,
	"language": "EN",
	"sources": [
		"MITRE"
	],
	"origins": [
		"web"
	],
	"references": [
		"https://capec.mitre.org/data/definitions/649.html"
	],
	"report_names": [
		"649.html"
	],
	"threat_actors": [],
	"ts_created_at": 1775434112,
	"ts_updated_at": 1775826788,
	"ts_creation_date": 0,
	"ts_modification_date": 0,
	"files": {
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