BADFUNC.RANDOM.DINIT : Default Initialization of Random Number Generator

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CodeSonar^® 9.2p0

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C and C++

BADFUNC.RANDOM.DINIT : Default Initialization of Random Number Generator

Summary

A pseudo-random number generator object is created with the default constructor, so the sequence of numbers it will generate is repeatable and predictable.

Properties

Class Name

Default Initialization of Random Number Generator

Significance

security

Mnemonic

BADFUNC.RANDOM.DINIT

Categories

AUTOSARC++14	AUTOSARC++14:A26-5-2	Random number engines shall not be default-initialized.
CWE	CWE:332	Insufficient Entropy in PRNG
	CWE:335	Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)
	CWE:337	Predictable Seed in Pseudo-Random Number Generator (PRNG)
	CWE:676	Use of Potentially Dangerous Function
CERT-C	CERT-C:MSC32-C	Properly seed pseudorandom number generators
CERT-CPP	CERT-CPP:MSC51-CPP	Ensure your random number generator is properly seeded
DISA-6r1	DISA-6r1:V-222397	The application must implement cryptographic mechanisms to protect the integrity of remote access sessions.
DISA-5r3	DISA-5r3:V-69259	The application must implement cryptographic mechanisms to protect the integrity of remote access sessions.
DISA-4r3	DISA-4r3:V-69259	The application must implement cryptographic mechanisms to protect the integrity of remote access sessions.
DISA-3r10	DISA-3r10:V-6137	The designer will ensure the application uses the Federal Information Processing Standard (FIPS) 140-2 validated cryptographic modules and random number generator if the application implements encryption, key exchange, digital signature, and hash functionality.
OWASP-2021	OWASP-2021:A2	Cryptographic failures
OWASP-2025	OWASP-2025:A04	Cryptographic Failures

Availability

Available for C++ only (not 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="Default Initialization of Random Number Generator"

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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