The add_probe function in modutils/modprobe.c in BusyBox before 1.23.0 allows local users to bypass intended restrictions on loading kernel modules via a / (slash) character in a module name, as demonstrated by an “ifconfig /usbserial up” command or a “mount -t /snd_pcm none /” command.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9645
Reference (s):
- BID:72324
- URL: http://www.securityfocus.com/bid/72324
- http://git.busybox.net/busybox/commit/?id=4e314faa0aecb66717418e9a47a4451aec59262b
- https://bugs.busybox.net/show_bug.cgi?id=7652
- https://bugzilla.redhat.com/show_bug.cgi?id=1185707