CWE-774 不加限制或调节进行文件描述符或句柄的分配
Allocation of File Descriptors or Handles Without Limits or Throttling
结构: Simple
Abstraction: Variant
状态: Incomplete
被利用可能性: Low
基本描述
The software allocates file descriptors or handles on behalf of an actor without imposing any restrictions on how many descriptors can be allocated, in violation of the intended security policy for that actor.
扩展描述
This can cause the software to consume all available file descriptors or handles, which can prevent other processes from performing critical file processing operations.
相关缺陷
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cwe_Nature: ChildOf cwe_CWE_ID: 770 cwe_View_ID: 1000 cwe_Ordinal: Primary
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cwe_Nature: ChildOf cwe_CWE_ID: 770 cwe_View_ID: 699 cwe_Ordinal: Primary
常见的影响
| 范围 | 影响 | 注释 |
|---|---|---|
| Availability | DoS: Resource Consumption (Other) | When allocating resources without limits, an attacker could prevent all other processes from accessing the same type of resource. |
可能的缓解方案
MIT-47 ['Operation', 'Architecture and Design']
策略: Resource Limitation
Use resource-limiting settings provided by the operating system or environment. For example, when managing system resources in POSIX, setrlimit() can be used to set limits for certain types of resources, and getrlimit() can determine how many resources are available. However, these functions are not available on all operating systems. When the current levels get close to the maximum that is defined for the application (see CWE-770), then limit the allocation of further resources to privileged users; alternately, begin releasing resources for less-privileged users. While this mitigation may protect the system from attack, it will not necessarily stop attackers from adversely impacting other users. Ensure that the application performs the appropriate error checks and error handling in case resources become unavailable (CWE-703).
分类映射
| 映射的分类名 | ImNode ID | Fit | Mapped Node Name |
|---|---|---|---|
| Software Fault Patterns | SFP13 | Unrestricted Consumption |