CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition

ID CWE-367

Abstraction Base

Structure Simple

Status Incomplete

Number of CVEs 344

The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state.

This weakness can be security-relevant when an attacker can influence the state of the resource between check and use. This can happen with shared resources such as files, memory, or even variables in multithreaded programs.

Modes of Introduction

Phase	Note
Implementation

Applicable Platforms

Type	Class	Name	Prevalence
Language	Not Language-Specific

Relationships

View			Weakness
# ID	View	Status	# ID	Name	Abstraction	Structure	Status
CWE-1000	Research Concepts	Draft	CWE-362	Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')	Class	Simple	Draft
CWE-1003	Weaknesses for Simplified Mapping of Published Vulnerabilities	Incomplete	CWE-362	Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')	Class	Simple	Draft

Common Attack Pattern Enumeration and Classification (CAPEC)

The Common Attack Pattern Enumeration and Classification (CAPEC™) effort provides a publicly available catalog of common attack patterns that helps users understand how adversaries exploit weaknesses in applications and other cyber-enabled capabilities.

CAPEC at Mitre.org

# ID	Name	Weaknesses
CAPEC-27	Leveraging Race Conditions via Symbolic Links	CWE-367
CAPEC-29	Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions	CWE-367

CVEs Published

Based on CVE published date

CVSS Severity

CVSS Severity - By Year

CVSS Base Score

# CVE	Description	CVSS	EPSS	EPSS Trend (30 days)	Affected Products	Weaknesses	Security Advisories	Exploits	PoC	Pubblication Date	Modification Date
# CVE	Description	CVSS	EPSS	EPSS Trend (30 days)	Affected Products	Weaknesses	Security Advisories	PoC	Pubblication Date	Modification Date