BADFUNC.PATH.POPEN : Use of popen

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A use of popen(), which is vulnerable to path spoofing if the path argument is not securely specified.

Class Name

Use of popen

Significance

security

Mnemonic

BADFUNC.PATH.POPEN

Categories

CWE	CWE:676	Use of Potentially Dangerous Function
DISA-6r1	DISA-6r1:V-222604	The application must protect from command injection.
DISA-5r3	DISA-5r3:V-70261	The application must protect from command injection.
DISA-4r3	DISA-4r3:V-70261	The application must protect from command injection.
DISA-3r10	DISA-3r10:V-6157	The designer will ensure the application does not contain invalid URL or path references.
	DISA-3r10:V-16810	The designer will ensure the application does not allow command injection.
BSI	BSI:Exec-SearchPath-01

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 popen"

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

FILE *

popen(const char *command, const char *mode)

When you are warned about a use of popen(), make sure that make sure that any executable in the command argument is specified with an absolute path name from a trusted source.

Once you are satisfied that these conditions hold, you can change the warning state to Suppressed.

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.PATH.POPEN : Use of popen

Summary

Properties

Resolution

Relevant Configuration File Parameters