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| CodeSonar® 9.2p0 | CONFIDENTIAL | CodeSecure Inc |
Potentially-tainted data is used to construct an operating system command.
| Class Name | Command Injection | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Significance | security | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mnemonic | IO.INJ.COMMAND | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Categories |
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| Availability | Available for C and C++. |
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| Enabling | Checks for this warning class are enabled by
default. To disable them, add the following WARNING_FILTER rule to the
project configuration file.
WARNING_FILTER += discard class="Command Injection" |
Japanese (ja)
#include <stdlib.h>
#include <stdio.h>
int command_from_file(FILE *infile)
{
char comm[80];
char *res = fgets(comm, 80, infile);
if (res)
return system(comm); /* 'Command Injection' warning issued here */
return -1;
}
CodeSonar ships with library models that allow it to recognize a number of functions that use one or more of their parameters to construct an operating system command. Some examples are shown in the table below. If one of these functions is called with a tainted value in one of those parameter positions, a warning will be issued.
If you have created a custom library model for some function f() in terms of one of these existing models, calls to f() will also be capable of triggering Command Injection warnings.
| Functions that can trigger warnings include... | |
|---|---|
| gcc Builtins | __builtin_execl(), __builtin_execle() |
| libc | execv(), popen(), system() |
| Win32 | CreateProcessA(), CreateProcessW(), _wsystem() |
The following configuration file parameters affect checks for this warning class.
To report problems with this documentation, please visit https://support.codesecure.com/.