BADFUNC.GETLOGIN : Use of getlogin

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CodeSonar^® 9.2p0

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C and C++

Binaries

BADFUNC.GETLOGIN : Use of getlogin

Summary

A use of getlogin(), which is associated with security problems.

Properties

Class Name

Use of getlogin

Significance

security

Mnemonic

BADFUNC.GETLOGIN

Categories

CWE	CWE:558	Use of getlogin() in Multithreaded Application
	CWE:676	Use of Potentially Dangerous Function
	CWE:863	Incorrect Authorization
BSI	BSI:GETLOGIN	Use of getlogin
OWASP-2017	OWASP-2017:A5	Broken access control
OWASP-2021	OWASP-2021:A1	Broken access control
	OWASP-2021:A4	Insecure design
OWASP-2025	OWASP-2025:A01	Broken Access Control
	OWASP-2025:A06	Insecure Design

Availability

Available for C and C++.

Enabling

Checks for this warning class are disabled by default. To enable them, add the following WARNING_FILTER rule to the project configuration file.

WARNING_FILTER += allow class="Use of getlogin"

To enable all BSI-related classes, including all BSI-specific BADFUNC classes, use the bsi configuration preset.

Could Indicate

CWE:558	Use of getlogin() in Multithreaded Application

Resolution

Use getlogin_r() instead, or use a property other than user name to determine identity.

Relevant Configuration File Parameters

This class is implemented using a BAD_FUNCTION_* rule set in the general template configuration file.

To include an additional function or set of functions in the checks for this class, create a new set of BAD_FUNCTION_* rules in which the BAD_FUNCTION_REGEX setting matches the function or set of functions you want to check and the remaining rules match those in the other sets for this class.
To remove a function or set of functions from the checks for this class, edit the configuration file to comment out the corresponding set of BAD_FUNCTION_* rules.

The following configuration file parameters affect checks for this warning class.

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