CWE-1046
Creation of Immutable Text Using String Concatenation
2019-01-03
00h00 +00:00
00h00 +00:00
指定 CWE 通知
随时了解指定 CWE 的变更。
名称: Creation of Immutable Text Using String Concatenation
The product creates an immutable text string using string concatenation operations.
基本信息
引入方式
Implementation适用平台
编程语言
类： Not Language-Specific (Undetermined)常见后果
| 影响范围 | 影响 | 可能性 |
|---|---|---|
| Other | Reduce Performance 注意： When building a string via a looping feature (e.g., a FOR or WHILE loop), the use of += to append to the existing string will result in the creation of a new object with each iteration, which can be inefficient in comparison with use of text buffer data elements. This issue can make the product perform more slowly. If the relevant code is reachable by an attacker, then this could be influenced to create performance problems. |
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-959
Automated Source Code Performance Efficiency Measure (ASCPEM)Object Management Group (OMG).
https://www.omg.org/spec/ASCPEM/
REF-1534
Automated Technical Debt Measure, Version 2OMG.
https://www.omg.org/spec/ATDM2/1.0/PDF
提交记录
| 名称 | 组织 | 日期 | 发布日期 | Version |
|---|---|---|---|---|
| CWE Content Team | MITRE | 3.2 |
修改记录
| 名称 | 组织 | 日期 | 备注 |
|---|---|---|---|
| CWE Content Team | MITRE | updated Description, Relationships | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Description | |
| CWE Content Team | MITRE | updated References, Relationships | |
| CWE Content Team | MITRE | updated Mapping_Notes | |
| CWE Content Team | MITRE | updated Applicable_Platforms, Common_Consequences, Description, Time_of_Introduction | |
| CWE Content Team | MITRE | updated Common_Consequences, Description, Detection_Factors, References |
