XCTF WEB command_execution
https://adworld.xctf.org.cn/task/answer?type=web&number=3&grade=0&id=5071
题解:
windows或linux下:
command1 && command2 先执行command1,如果为真,再执行command2
command1 | command2 只执行command2
command1 & command2 先执行command2后执行command1
command1 || command2 先执行command1,如果为假,再执行command2
命令执行漏洞(| || & && 称为 管道符)