BADFUNC.RANDOM.RANDOM : Use of random

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A use of random() or srandom(), which do not provide sufficient randomness for secure applications.

Class Name

Use of random

Significance

security

Mnemonic

BADFUNC.RANDOM.RANDOM

Categories

CWE	CWE:327	Use of a Broken or Risky Cryptographic Algorithm
	CWE:332	Insufficient Entropy in PRNG
	CWE:334	Small Space of Random Values
	CWE:338	Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
	CWE:676	Use of Potentially Dangerous Function
DISA-6r1	DISA-6r1:V-222397	The application must implement cryptographic mechanisms to protect the integrity of remote access sessions.
	DISA-6r1:V-222570	The application must utilize FIPS-validated cryptographic modules when signing application components.
	DISA-6r1:V-222571	The application must utilize FIPS-validated cryptographic modules when generating cryptographic hashes.
	DISA-6r1:V-222572	The application must utilize FIPS-validated cryptographic modules when protecting unclassified information that requires cryptographic protection.
	DISA-6r1:V-222583	The application must use 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.
DISA-5r3	DISA-5r3:V-69259	The application must implement cryptographic mechanisms to protect the integrity of remote access sessions.
	DISA-5r3:V-70191	The application must utilize FIPS-validated cryptographic modules when signing application components.
	DISA-5r3:V-70193	The application must utilize FIPS-validated cryptographic modules when generating cryptographic hashes.
	DISA-5r3:V-70195	The application must utilize FIPS-validated cryptographic modules when protecting unclassified information that requires cryptographic protection.
	DISA-5r3:V-70217	The application must use 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.
DISA-4r3	DISA-4r3:V-69259	The application must implement cryptographic mechanisms to protect the integrity of remote access sessions.
	DISA-4r3:V-70191	The application must utilize FIPS-validated cryptographic modules when signing application components.
	DISA-4r3:V-70193	The application must utilize FIPS-validated cryptographic modules when generating cryptographic hashes.
	DISA-4r3:V-70195	The application must utilize FIPS-validated cryptographic modules when protecting unclassified information that requires cryptographic protection.
	DISA-4r3:V-70217	The application must use 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.
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.
BSI	BSI:MetaRule
OWASP-2017	OWASP-2017:A9	Using components with known vulnerabilities
OWASP-2021	OWASP-2021:A6	Vulnerable and outdated components

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 random"

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

Use a cryptographically secure random generator, and ensure that it is seeded with a truly random value.

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.

BADFUNC.RANDOM.RANDOM : Use of random

Summary

Properties

Resolution

Relevant Configuration File Parameters