CWE-379 详情

The product creates a temporary file in a directory whose permissions allow unintended actors to determine the file's existence or otherwise access that file.

引入方式

Implementation

适用平台

编程语言

类： Not Language-Specific (Undetermined)

常见后果

观察示例

潜在缓解措施

Phases : Requirements
Many contemporary languages have functions which properly handle this condition. Older C temp file functions are especially susceptible.
Phases : Implementation
Try to store sensitive tempfiles in a directory which is not world readable -- i.e., per-user directories.
Phases : Implementation
Avoid using vulnerable temp file functions.

检测方法

Automated Static Analysis

Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)
有效性 : High

漏洞映射说明

依据 : This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
备注 : Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.

参考资料

REF-18

The CLASP Application Security Process
Secure Software, Inc..
https://cwe.mitre.org/documents/sources/TheCLASPApplicationSecurityProcess.pdf

REF-62

The Art of Software Security Assessment
Mark Dowd, John McDonald, Justin Schuh.

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