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.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2014-9645 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue affects the versions of busyboxas shipped with Red Hat Enterprise Linux 4, 5 and 6. Red Hat Product Security has rated this issue as having a low security impact. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 1 |
|---|---|
| Base Metrics | AV:L/AC:H/Au:S/C:N/I:P/A:N |
| Access Vector | Local |
| Access Complexity | High |
| Authentication | Single |
| Confidentiality Impact | None |
| Integrity Impact | Partial |
| Availability Impact | None |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 6 | busybox | Will not fix |
| Red Hat Enterprise Linux 5 | busybox | Will not fix |
| Red Hat Enterprise Linux 4 | busybox | Will not fix |
Vulmon