adj329_securitytest10.r2py

# adj329
# One thread is writting the file containing PER to INV and other thread is converting back to PER and first thread tries to remove the file, error if allowed to delete

filename = "private_testfile.txt"
myfile=openfile(filename, True)
myfile.writeat("PER aa kk rr",0)


def threadone():

    if myfile.readat(3,0) == "PER":
		try:
			myfile.writeat("INV",0)
			sleep(4)
			myfile.close()
			removefile(filename)
		except RepyArgumentError:
			pass
		else:
			log("ERROR ATTACK-10| Thread - Allowed me to delete the file \n")

		finally:
			exitall()

def threadtwo():
	try: 
		myfile.writeat("PER",0)
	except RepyArgumentError:
		pass
	finally:
		exitall()

def timeout():
	sleep(12)
	log("ERROR ATTACK-10| Thread - Reference monitor took too long to respond! \n")
	exitall()

createthread(threadone)
createthread(threadtwo)
createthread(timeout)
myfile.close()