CWE-558: Use of getlogin() in Multithreaded Application
ID
CWE-558
Abstraction
Variant
Structure
Simple
Status
Draft
The product uses the getlogin() function in a multithreaded context, potentially causing it to return incorrect values.
The getlogin() function returns a pointer to a string that contains the name of the user associated with the calling process. The function is not reentrant, meaning that if it is called from another process, the contents are not locked out and the value of the string can be changed by another process. This makes it very risky to use because the username can be changed by other processes, so the results of the function cannot be trusted.
Modes of Introduction
| Phase | Note |
|---|---|
| Implementation |
Applicable Platforms
| Type | Class | Name | Prevalence |
|---|---|---|---|
| Language | C | ||
| Language | C++ |
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